The Wollenberg Bunker – Linking East Germany and the USSR

Heading to Berlin or the former GDR? Looking for traces of the Cold War open for a visit?

A Travel Guide to COLD WAR SITES in EAST GERMANY

Second Edition - 2024

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The events taking place on the geopolitical stage during the last decade of the Cold War – the 1980s – gave little indication of the imminent collapse of the Soviet-led Eastern Bloc (1989-1991). Correspondingly, looking at the amount of technology developed and deployed in the military field during the late, hi-tech stage of the Cold War, it is easy to notice that opponents on both sides of the Iron Curtain dedicated a significant (and even increasing) budget in preparation for a possible total confrontation. Reading papers and specialized books from the time, the outbreak of an open conflict, such to put a violent and abrupt end to years of opposition between the two opposing systems by recurring to nuclear warfare over the territories of Western Europe (most of them belonging to the NATO alliance, and all being substantially more militarized than today), was not deemed just likely, but more as a matter of time.

The БАРС system – The tropospheric network of the Warsaw Pact

In that era of extreme tension, it is not surprising that one of the most sophisticated and expensive assets developed and deployed jointly by all Nations in the Warsaw Pact, of course led by the USSR, came alive. History would cut its life short though, and as soon as the Warsaw Pact disintegrated, as a result of the opt-out from communist dictatorship of all Countries in Eastern Europe, this asset was decommissioned. This system was the tropospheric communication system ‘БАРС’, a Russian word reading ‘BARS’ and meaning ‘snow leopard’. The name stands as an acronym for four words in Russian, which translate into something like ‘Sheltered autonomous radio communication system’.

The idea put forward by the Soviet top-ranking military staff in the early 1980s (prior to the onset of Gorbachev administration) was that of a system capable of transmitting complex orders (not just simple signals, like for opening a bunker door or silo, but articulated messages) in a safe encrypted way, at a long distance and minimizing the chance of a complete breakdown even in case of an enemy nuclear attack. Despite being not new, the concept of a resilient and reliable system, such to allow exchanging significant amount of data without relying on cables, had been tested in earlier stages of the Cold War only for short-radius operations. Mobile transmitters/receivers, loaded on purpose-designed trucks, allowed for a reduction of the risk of a direct hit from an attacker, and for a quick redeployment in case of need. However, for the amount of data and range required for the coordination of a war scenario, involving many different Countries, and geographically encompassing an entire continent, a different system was required, capable of transmitting more massive data flows on longer distances, with a reduced risk of a sudden or complete interruption.

The БАРС system was based on a certain number of stations, scattered over the territory of the Countries of the Warsaw Pact. Each node was built as a bunkerized, manned military installation, featuring high-power, high-frequency fixed antennas emerging from the ground, and an underground shelter protecting all the technical gear required for manipulating the data to be sent or received, interfacing with the other existing local (i.e. national) networks for military and executive governmental communication, and of course managing the tremendous amount of energy required to pump a long-reaching signal into the ether.

Laying on the front line with the West, hosting a Soviet contingent of some hundred thousands troops (see here and links therein), aircraft (see here), missiles (see here) and nuclear warheads (see here), and being a key-ally of the USSR in case of the outbreak of an open war (at least until late 1989), the German Democratic Republic (or GDR, or DDR in German) was clearly included in the БАРС network from the initial drafting phase. Similarly, Poland, Czechoslovakia, Hungary and Bulgaria, and of course the Soviet Union (which included Belarus and the Baltics, and stretched west to Kaliningrad), all had БАРС stations on their territory. Stations were located at a range of a few hundred miles from one another, thus within the range required for each of them to communicate with one or more of the other nodes. Data (e.g. orders, reports or authorizations) input locally could be relayed along the network through intermediate nodes, down to the intended destination node. There were 26 nodes in total, of which four were in the USSR.

The Wollenberg site – Bunker 301 ‘Tushurka’

The GDR in particular had three stations built, all along the border with Poland, and located east of Berlin – namely Station 301 in Wollenberg, at the same latitude of Berlin, Station 302 in Langsdorf, towards the Baltic coast, and Station 303 in Röhrsdorf (near Königsbruck), not far from Dresden in the southeast of the GDR territory. The first among them, the Wollenberg site (codenamed ‘Tushurka’) could communicate with the other two national stations, as well as with Station 207 in Poland, from where data would be transmitted further down the network, towards the USSR.

The site was built by the GDR state, with technical hardware coming from several Countries within the Warsaw Pact, and most of the military hi-tech components manufactured in the USSR. The actual site (similar to its sister sites) was built in the frame of a highly secretive operation. The staff comprised about 60-70 men, the majority of which were military, where about 15% were civil technicians. Maximum security clearance was required, due to the top-secret nature of the installation and of the overall БАРС system. The bunkerized part of the installation was only a component of the larger premises of the base, camouflaged within the trees on the side of low-rising hill.

As pointed out, the immense spending required for setting up this multi-national hi-tech military communication system, which was extensively tested and completely commissioned (as a network) by 1987, did not save it from a quick demise and disappearance. In particular, Station 301 went definitively offline as early as August 1990.

However, the fate of the Wollenberg site was not so sad as that of many former Soviet or NVA (i.e. the East German Army) installations in the GDR. The high-power antennas were torn down, but except from that, little material damage was inflicted to the buildings and bunker on site. The place was basically shut-off and left dormant, until when a society of technically very competent local enthusiasts started a plan to preserve and open it to visitors, as a memorial specimen of the technology of the Cold War years.

A visit to the Wollenberg bunker site reveals a tremendous deal of interesting details, very uncommon to find elsewhere in the panorama of Cold War relics around Europe. Thanks to a careful preservation and restoration work, the bunker has most of its original systems still plugged to the grid and lit-up – some of them are reportedly still working! Even though the communication networks have been severed, the experience in the bunker is really evoking, and the atmosphere – with all the lit-up cabinets, lights, CCTV cameras, 1980-style screens, etc. – closely resembles that of the bygone era when БАРС was operative!

This report and photographs were taken during a private visit to the bunker, carried out in the Summer of 2023.

Sights

A visit to the the installation in Wollenberg starts from the original high-security access gate. As you may quickly notice when passing through it and getting a first view of the site, the state of preservation is exceptional. Except for the lack of military staff around, everything looks mostly like in the years of operation.

A group of soft-construction service buildings and a reinforced multi-entry garage constitute the first – and visible – nucleus of the installation. All buildings are painted in a camo coat.

A former building for the on-site staff has been turned into a permanent exhibition, with memorabilia items from the Cold War years, when the Nationale Volksarmee (or NVA, the Armed forces of the GDR) cooperated with the Soviet Red Army and the national Armed forces of other Countries in the Warsaw Pact.

A meeting room, now employed also for small gatherings, is especially rich of interesting and diverse items, including emblems, books, memorial plates and pennants, as well as TV screens, hi-fi systems and and beamers from the era.

Another room has been set-up as a control center for the base, with an original console and regional maps.

Compared to military bases (for aircraft or tanks), the Wollenberg installation is rather compact, with a main road giving access to most of the (not many) buildings on site, as well as the bunker. Actually, the bunkerized part was built under a low-rising hill, with the antennas originally standing on top of it. Access to the bunker is possible either by climbing uphill on the main road, or through a suggestive original pedestrian tunnel. The latter starts from within the service building itself, and – somewhat unexpectedly, for an underground installation – it climbs uphill, while keeping beneath the surface of the hill side slope. The lower end is guarded by an original CCTV camera.

At the top end of the tunnel you can find the actual access to the bunker. The design and reinforcement level conferred grade ‘D’ protection according to the military standard in use at the time, with grade ‘A’ being the strongest. Access is through an airlock, constituted by two tight doors at the opposite ends of a small vestibule built in concrete. This design allowed protection from the blast of a nuclear device.

Notably, the locking mechanism of the tight doors is Soviet military standard, which can be found in high-value installations like nuclear depots elsewhere in the Eastern Bloc (see for instance here in Poland, and here in Czechoslovakia).

To the visitor with some experience of Cold War installations, it will be apparent from the very start of the tour that the state of conservation of the bunker, including the systems in it, is exceptional, similar to the rest of the Wollenberg site. The original warning lights and the CC-TV camera for identifying people at the entrance are still in place.

Next to the entrance, a control room with technical gear for checking-in can be found – including original dosimeters for radiation and chemicals, mostly Soviet-made. Looking inside these devices is possible, and reveals a great deal of sophistication in the design and realization of the military-grade material from the time.

Showers and sinks for washing, as well as canister for disposing of contaminated clothes, are located in the same area.

Upon getting access to the sealed area of the bunker and passing by the decontamination facility, you find yourself on the top floor of the underground bunker. The high-technology gear required for the transmission/reception of data on the БАРС network, as well as the interface with other national communication systems, required for receiving data, issuing orders, etc. over the territory of the GDR, were located on this floor.

Two symmetrically placed rooms host two twin transmission centers for the БАРС system. A single manned console can be found in each of them, surrounded by electronic cabinets and switches. At a closer look, all the material herein is Soviet made, and labeled in Russian only.

On the wall ahead of the console station is a set of cables, communicating with the antenna and allowing to set the orientation and monitoring its status.

The actual signals transmitted to the antenna, or received from it, traveled along special hollow ducts, with an almost rectangular section. Bundles of these ducts can be found in the ‘Sender’ (which means ‘transmitter’ in English) room, immediately next to the room where the manned console is.

The modulation and demodulation of the signals going out and coming in respectively through the antenna on top of the bunker required some special pieces of electronics, which included the Soviet-designed KY-374 klystron (codenamed ‘Viola’), a component to be found in the cabinets of the ‘Sender’ room.

Following the hollow ducts, it is possible to find where they finally exit the usually manned part of the bunker, bending into receptacles and leading outside. Piping related to other systems, including air conditioning, can be seen as well crossing or running in the same narrow technical corridors.

Beside the consoles monitoring the antenna and the data flowing through it, a kind of operative room for communication can be found, where consoles allowing to receive and forward data and communication to/from all systems are on display. This largely original room features consoles of different levels of technology.

Original explanatory schemes showing the basic features of the БАРС system are on display in that area – in Russian!

An adjoining room features the cabinets required for making all these system work. The cabinets are really many, with a significant share of material manufactured in the USSR. The sight of all these cabinets together is really impressive, and tangibly provides the feeling of a high technology, sophisticated and expensive design. It compares well, but in a largely up-scaled fashion, to the electronics to be found in some special communication bunkers on the western side of the Iron Curtain (see here).

Interspersed with the original arrangement of the cabinets and consoles are some displays of original material. These include specimens of different types of cables for signal transmission – some of them hollow and pressurized, others featuring impressive bundles of thinner wires – the KY-374 klystron, and other once top-secret core components of the БАРС transmission system. Also on display is one of the few remaining parts of the original system of antennas, once on top of the bunker. The antennas were the only part to be physically torn down when the system was decommissioned, upon the demise of the Warsaw Pact and the end of the Cold War.

The bunker was manned by military and technical staff 24/7. Furthermore, as typical for bunkers from the Cold War era, provision was made at a design level to allow the staff to live isolated within the bunker for an extended period of time, in view of the eventuality to face a nuclear fallout scenario.

On the same floor as the technical rooms, the commander of the station had his own private room. This is still adorned with typical Soviet iconography, as well as everyday material from the age when the bunker was operative.

A small canteen, with a kitchen and a modest living room, can be found at the same level. An original storage room has been employed to gather examples of everyday products, like soap, skin care cream, etc., as well as canned food, cocoa, and beverages of all sorts.

This represents a very rich catalog of now largely defunct and forgotten labels, from the age and regions of the Eastern Bloc (and especially from within the GDR). Also on display are bottles of spirits, likely still very good!

The visit proceeds then to the lower floor, which can be reached through a flight of metal stairs.

The lower floor host the plants required for the regular operation of the entire bunker, such to guarantee operational ability even in case of an enemy attack carried out with nuclear, chemical or biological warfare. The air filtering and conditioning system is very modern. Beside typical filtering drums for particles, to be found also in other bunkers (see for instance Podborsko here), you can see a bulky filtering and climate conditioning system, neatly arranged within two parallel square-shaped ducts. Filtering against chemicals as well as biologic agents was carried out employing special active filters.

Sensors for the level of contamination of the bunker air can be found in different rooms. Much material here is standard Soviet-made.

Systems for water pumping and compressed air can be found as well, including compressors, pumps and reservoirs. Looking at the always interesting factory labels in this area, it is easy to find export products of Bulgaria, Romania and other communist dictatorships of the era. Of course, much hardware is also manufactured in the GDR.

Electricity was supplied from the outside grid, yet capability for self-sustaining in case of a grid loss (for instance in case of war) was implemented as well. Three big German-made Diesel generators have been put in place, and are still in an apparently good condition.

Another example of the high technological standard reached in the late Cold War era is represented by the control room for the plants within the bunker. A manned control station, with a console and a direct view of lit-up cabinets, reporting the status of the various systems running in the bunker, compares well with control rooms of large industrial plants in operation today.

Carefully kept in its original status, with many of the electric links and cabinets still working, the sight of this room is especially evoking.

Also on the lower floor are the sleeping rooms for off-duty staff. Typically, this was not employed except for drills, when the bunker could be sealed to simulate operations in case of the outbreak of hostilities.

Back to the upper floor, it is possible to exit the bunker via a stairway and through a side gate. You will find yourself on top of the low-rise hill where the bunker has been dug. Here the concrete base of the crane where the БАРС antenna used to sit are still visible. Notably, these antennas were much smaller than the tropospheric antennas employed for the TROPOSCATTER system of NATO. This was the result of a different bandwidth employed for transmissions. Therefore, even in the days of operation, the antennas on top of the bunker were not as sizable as those of TROPOSCATTER installations (which were enormous in size).

Looking closely, in the top area of the installation, the duct for supplying the Diesel oil tank of the bunker can be found, similar to sensors for radiation and other atmospheric parameters (similar to what can be found also in other nuclear-proof bases, for instance here). These allowed to monitor the conditions of the outside air, detect an attack and trigger or manage the sealing of the bunker in case of need, by locking all the tight doors.

This access to the bunker is fenced by the original electrified fence, severing this area from the rest of the installation through a further layer of security.

All in all, a visit to the Wollenberg bunker offers an incredible insight in a fascinating and crucial field of warfare – data and communication exchange – as well as a lively and evocative display of a late Cold War hi-tech installation from the Soviet side of the Iron Curtain!

Getting there & Visiting

The German name of the Wollenberg bunker is ‘Militärhistorisches Sonderobjekt 301 Wollenberg’. It can be reached very easily with a car. It can be found in the open countryside along the regional road 158, driving about 35 miles (about 1 hour) northeast from downtown Berlin towards Poland. The exact location is between the small village of Höhenland (~4 miles) and the more sizable Bad Freienwalde (~6 miles). There is a large parking area immediately next to the road, giving direct pedestrian access to the premises of the former military installation. Despite being placed very conveniently, the site is rather elusive when passing by, since it is hidden in the trees and not directly visible from the road. The address corresponding to the place in Google Maps is Sternkrug 4, 16259 Höhenland. The inconspicuous village of Wollenberg, giving the name to the installation, is just nearby, but it is not crossed by the regional road, and it should not be employed for pointing this destination with a nav.

The Wollenberg bunker is a listed historical installation. It is perfectly maintained, privately managed, and it can be regularly accessed with guided tours. These are offered typically one day per week in the summer, or by prior arrangement. Possibly the best option for getting the most out of your visit is getting in contact with the group of very knowledgeable enthusiasts running the place. The official website is here (do not be discouraged by the ‘static’ appearance of the website, they are very active, and they shall typically answer your inquire).

My visit was planned by initiative of Dr. Reiner Helling (see also here), and we visited in a group of three, including the guide (Dr. Michael Schoeneck, a former engineer, with a profound knowledge of any technical aspects related to this installation), which happened to be a perfect option for touring also the narrowest receptacles of the bunker. Visiting in groups too big may be not advisable, since the rooms and corridors are rather narrow, and the place may turn overcrowded for interacting with the guide and for taking good pictures. I think the visit – including the technical content – may be tailored to the needs of the audience. For technical-minded subjects, historians and former military, a visit may take about 2-3 hours (the latter was my experience). In my case, the guide could understand but not speak fluent English, yet Dr. Helling could translate with ease all the explanations. Of course, if you have at least a basic knowledge of German and of the technical material you are looking at, this may simplify your visit, which is in any case highly advisable for those interested in military technology and the Cold War.

Heading to Berlin or the former GDR? Looking for traces of the Cold War open for a visit?

A Travel Guide to COLD WAR SITES in EAST GERMANY

Second Edition - 2024

DON'T LEAVE IT AT HOME! AVAILABLE in PAPERBACK or KINDLE from your national Amazon store!
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amazon.it | amazon.fr | amazon.co.jp

Preserved Cold War Bunkers in Northern England

The central role taken by Britain in WWII, firstly containing and then countering the expansion of the Third Reich, is duly and proudly celebrated all around the Country, with memorials and thematic exhibitions, often hosted in historical locations, regularly open for a visit.

The United Kingdom joined NATO as a founding member in 1949, and had already been at the forefront of a European anti-Soviet alliance with France since 1947. The strategic political and military ties with the US, pivotal in putting and end to WWII in Europe, were kept over the following decades, against the menace constituted by the Eastern Bloc. Thanks to its geographical position, and bolstering a nuclear arsenal, strategic bombers and submarines of its own, Britain was a major player of the Cold War.

Despite that, the Cold War left behind comparatively less memories than WWII, with only a handful installations open to the public, and somewhat out of the spotlight. In this regard, this reflects an attitude generally widespread in Europe towards the traces of the second half of the 20th century.

However, for people with an interest in the Cold War age, and more in general for those with a thing for (especially nuclear) warfare technology, there are two really unmissable sights in Northern England, which make for a vivid hands-on experience of the ‘era of Soviet threat’.

One is the Hack Green Secret Nuclear Bunker, with a fascinating history starting in WWII and spanning the entire duration of the Cold War. Here one of the finest collections of nuclear-war-related material in Europe can be found, together with much additional material from the era, in a largely preserved historical site.

Another is the York Cold War Bunker, built in the Cold War age to provide protection to the staff of the Royal Observation Corps (ROC) in case of a nuclear attack, as well as the ability to help coordinating fundamental public functions – health, transportation, food and energy supply, etc. – in a post-attack nuclear fallout scenario.

Both sites are regularly open for a visit, and provide a vivid testimony of civil and military plans and facilities seriously prepared in England for a nuclear apocalypse scenario.

Sights

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Hack Green Secret Nuclear Bunker

The Hack Green site is located deep in the Cheshire countryside, about one hour driving south of Manchester. Actually, it is in a really secluded location, far from any sizable urban center, and away from major roads. Even today, when this facility is working as a top-level museum, some attention to the signs is needed to reach the site.

Once by the gate, you are immediately driven back in time by the appearance of the tall military-style external fence with official government signs, and by the blunt and in impenetrable appearance of the big concrete bunker – what you see is only the part above ground level! – with a big antenna protruding from the top. Nearby, you can see an apparently still off-limits area, with a now-dead radar antenna and an old Jet Provost trainer in RAF colors.

History

The history of the Hack Green site dates to as back as WWII, when it was established as one of the 12 most developed Ground Controlled Intercept (GCI) centers, out of 21 total nodes in Britain. Essentially based on the airspace scanning radar plants available at the time, the so-constituted ‘Chain Home’ surveillance system was operated by the RAF, and intended to track intruding German aircraft, thus directing air force planes against them. Radar aerials appeared on site at the time, suitable against relatively slow moving propeller-driven aircraft of those years.

With the start of the Cold War, and the need to reconfigure the defense against the USSR and Warsaw Pact forces operating with jet-powered aircraft of increasing speed, several modernization plans were started in Britain, aimed at implementing more effective detection and threat-countering radar technology, like ‘Green Garlic’, and later ROTOR. The latter called for the institution of a chain of detection nodes, not much dissimilar in concept from the older ‘Chain Home’ of WWII, but much more articulated, efficient and technologically advanced. At the time one of the most expensive government-funded operations ever, 66 installations were implemented all over Britain within ROTOR before the mid 1950s, with different roles in the network. The bunker you see today on the Hack Green site was one of them.

Keeping up with the fast-developing offensive technology of the 1950s and 1960s required a continuous update of the defensive network, in particular asking for the addition of intercontinental missiles to the enemy arsenal to counter. The US-led ‘Ballistic Missile Early Warning System’ (BMEWS) included 12 early-warning radar stations around the Atlantic, including a single station in the UK (RAF Fylingdales, Yorkshire, still in operation today). Before BMEWS went operational (early 1960s), triggering a re-organization of all other defense radar systems by the time obsolete, Hack Green took an interim role as one of only 4 radar stations operated by the RAF monitoring all military and civilian traffic through the British airspace, coping with new fast jetliners. The name of the Hack Green radar site in that stage was ‘Mersey Radar North’. Finally, in 1966 the RAF released the site to the government, which put it in mothballed status.

It was in 1976 that a new life began for Hack Green. Starting in 1958, the Home Office invested much in the preparation of an emergency structure, capable of keeping of managing a post-nuclear attack scenario, and keeping the basic public functions active. In the event of a total nuclear war, a failure of the national hierarchy and military chain of command was forecast, as a result of an extensive damage to the infrastructures and communication systems. In order to recover as fast as possible in such an emergency, the UK would split in 11 regions, each with a regional seat of government (RSG). In the region, a civil Regional Commissioner would take a leading administrative role, and would be responsible for coordinating disaster recovery operations, like supplying medical resources, food, water, and reconstructing infrastructures, while waiting for the national government to reactivate its functions. The Commissioner would be aided by the UK Warning and Monitoring Organization (UKWMO), which took over the function and organization of the older Royal Observation Corps (ROC) established during WWII. This structure was further potentiated in the 1960s and 1970s, also introducing a similar regional scheme for the military in case of a nuclear attack.

The seat of the RSG was in the Regional Government Head Quarters (RGHQ). Following some years when it was hosted in Preston, then in Southport, north of Liverpool, the RGHQ for the 10th region (then 10:2, following a split in two halves of this large region) found its home in Hack Green. The former radar facility was potentiated enormously, and set up with the ability to host 160 civil and military staff for 3 months without resupply in case of a nuclear attack on the UK.

Within the framework of the emergency plan for a nuclear attack, the RGHQs all over the UK went on operating until the demise of the USSR in December 1991, to be soon deactivated over the following years. Hack Green was scrapped of all content, and put up for sale in 1993. It was privately acquired in the mid-1990s, and carefully restored in some parts, or being stocked with interesting material from the Cold War era in some of the many rooms.

A tour of the bunker

Access to the bunker is via a concrete slide, and through a metal gate. Originally the male civil servants dorm, the first room you meet is now a kind of storage for items recently incorporated in the collection. These include a jeep, a model of an Avro Shackleton, and interestingly a nuclear warhead. The original system to activate the rooftop antenna is in a cabinet along a sidewall.

The ticket office and canteen are now in the original canteen area of the Hack Green site. Restored to a 1960s appearance, parts of the kitchen furniture are original from the site. Along the sidewalls are several memorabilia items, including some original Soviet emblems, not unusual today in museums on the other side of the Iron Curtain (see for instance here), but hard to find in the UK.

An adjoining room reproduces the environment where the ROC would have worked in case of a drill or real nuclear attack. Among their function was the pinpointing of nuclear explosions. The forecast and monitoring of the fallout is strongly bound to the local weather and winds. This was kept under surveillance through reporting stations scattered on the UK territory (more than 1 thousand), which transmitted information to Hack Green and other RGHQ and UKWMO bunkers (see the York bunker later in this post). They could then coordinate recovery operations, avoiding extreme exposure to radiation of the emergency staff.

Monitoring was through dedicated sensors, and communication through specific transmission gear. Two display cases in the same room feature interesting instruments, training documents, and memorabilia items from the rich history of the ROC, documenting also their activities in WWII.

Ground floor

The Hack Green bunker largely retains its original arrangement. It is composed of a ground and an underground floor. Along the main corridors are interesting examples of the papers produced by the UKWMO, and by the civil defense service during the Cold War. Among them, are leaflets for the population, with best practices in case of a nuclear attack.

Also interesting are more technical posters from the era, either outlining the role of the public organizations monitoring a potential nuclear apocalypse scenario, or providing technical details on the effects of nuclear weapons – what to expect in terms of damage or health issues, depending on the type and local condition of a nuclear explosion.

For sure a focal point in the exhibition of Hack Green today is the display of nuclear warheads, and nuclear-related material. Hosted in a room previously employed by emergency staff, the exhibition retraces with original material, mock-ups, rare pictures and videos, the history of the British nuclear arsenal, managed by the Atomic Weapons Establishment (AWE).

The WE177 was designed to constitute the backbone of the air-dropped nuclear deterrent of the UK. Examples of this bomb are on display together with technical material employed to monitor their status and manage launch or drills. In service between the 1960s and the 1990s in association with larger strategic bombers like the Vulcan, or smaller fighter-bombers like some versions of the Harrier or Jaguar, it could be assembled in some different versions, sharing the same baseline construction, but with nominal yields ranging between 10 to 450 kilotons.

Also on display are pictures and mock-ups of the old Polaris warhead, together with the original casing employed to transport this 200 kilotons item! A US design, the Polaris was acquired by the UK in 1963, to supply the Royal Navy and constitute the UK underwater deterrent. The Polaris missile featured a three-warheads fuse, bearing a total yield of 600 kilotons.

A very rare artifact is the warhead of project Chevaline, a British design to improve the potential of the Polaris, which saw limited service with the Royal Navy in the 1980s. The Polaris/Chevaline was replaced by the Trident missile system, still employed today in the nuclear deterrent role.

Besides the central exhibition of nuclear warheads, the display cases in the same room offer a wealth of super-interesting technical gear and memorabilia related to nuclear weapons. These include components and cabinets of radio and radar systems, to be transported on board aircraft or to be employed on the ground. These parts come from different ages, and from several Countries, including the Eastern Bloc – for instance, a very rare Soviet suit to work on high-power radar antennas for maintenance. Powerful radars actually emit rays with a high power-over-volume (power density) ratio especially in the vicinity of the emitting apparatus. This may even turn deadly for humans (roughly like being in a microwave oven would be!), and precautions are needed when working in such environment.

A really unique collection on display is related to Geiger counters and dosimeters. These include environmental and personal use devices, from various ages and nationality.

Two display cases are dedicated to material coming from beyond the Iron Curtain, most notably from the USSR and the GDR! It is really hard to imagine how this material could manage to come to Hack Green.

Part of the display is dedicated to the civil defense corps of different Countries, with helmets, emblems, papers and uniforms, showing how similar actions in preparations for a nuclear war were carried out in many Nations of continental Europe, also in the Eastern Bloc. Actually, a very close relative of the UKWMO RGHQ control center, with a totally similar function, can be found in a perfectly preserved condition in Poland (see this post).

More memorabilia items come from the history of civil defense in the UK. Among the most rare artifacts are the only surviving example of the ‘Queen’s telephone’, which was employed for enforcing the Emergency Power Act, which among other things may have transferred power to the Regional Commissioner. There used to be one such phone in each of the RGHQ, but all were destroyed for security reasons following the shut-off of the bunkers, except this one, and the one at the other end of the line – in the Royal residence.

An adjoining room hosts a reconstruction of the radar screen room from the age Hack Green was employed as a radar station managed by the RAF. All panels are lit, providing a vivid, pure Cold War experience!

To the end of the main corridor, you can reach another entrance to the bunker, which is nowadays normally shut. However, this used to be the main entrance, and close to it are the control room of the bunker and the decontamination area.

The control room is not accessible, but the large windows allow to take a glance to its original appearance. It is still employed to control electric power and air conditioning. Manned nuclear-proof bunkers are customarily pressurized, sucking contaminated air from the outside, which is carefully filtered for poisons and radioactive particles, and pumping unfiltered bunker air to the outside (see this post for another example in a Soviet bunker).

People entering after work out in the fallout-polluted environment were decontaminated through showers, and used anti-radiation suits were left in an isolated sink still on display.

Before leaving the ground floor, you can find on the ground level the female dorm for the staff of the RGHQ bunker. In the same room, an original system for communicating on the very low frequency bandwidth has been put on display. This Cold War relic could be employed to issue orders to the strategic submarine force. This very cabinet was employed by Prime Minister Thatcher for ordering the attack against the Argentinian ship General Belgrano.

A final room on this floor is the sick bay, sized for the staff of Hack Green only, but equipped to manage health issues resulting from the exposition to a nuclear attack.

Underground floor

Descending to the underground floor is possible via the original stairs. The first room you meet features an exhibition of original Soviet uniforms, belonging to some high-ranking officials from various branches of the Red Army. Really hard to see in this part of the world, their origin is well documented.

Close by, is a small display of military material from the Soviet bloc, ranging from original weapons, to communication systems, emblems and instructional posters for the troops (similar to what you can find in dedicated museums in former Warsaw Pact Countries, like here or here).

Nearby is a communication room originally employed by the military staff of the bunker, working in parallel with civil servants in the management of the nuclear emergency. Original radio transmission gear of military standard is still in place.

Before entering the core preserved area of the bunker, i.e. the rooms of the RGHQ, you can find the original water and air supply systems, and the corresponding technical cabinets, in a big room on the underground level.

The rooms of the RGHQ are all interconnected, and located to the side of the corridor on the underground floor. The way they look is from the days of activity of Hack Green as a RGHQ, i.e. the 1980s. Typical Cold War technology from the time is featured in this area.

Firstly, you enter the warning room, which used to be the contact point of the RGHQ with the national surveillance system. By design, the BMEWS at Fylingdales should have picked up an incoming ICBM within 30 seconds from launch, spreading an alert signal at all levels. This would have been received here and by the entire civil defense system within 90 seconds. This would leave roughly 4 minutes (out of a total of around 6 minutes for the missile to come to Britain from the Eastern Bloc) to tell the population of the incoming missile, which would happen through some thousands sirens scattered around the UK. The physical alarm signal management system was called HANDEL, and was employed from the 1960s to 1992. The apparatus on display at Hack Green, a node of HANDEL, is notably still working, albeit disconnected.

The warning room can be accessed directly from the Commissioner’s room, both an office and private room. Original maps and furniture can be found in this room, the only private one in the bunker. Immediately next to it is the cipher office, a communication office connecting – at least in non-emergency conditions – the center with the external world. Ciphered language was employed for safe communication with governmental offices, both domestic and abroad.

Next are a conference room, for meeting within the staff of the RGHQ, and a broadcast studio. The latter was focused on radio broadcast instead of TV, since the latter would not work in case of a nuclear attack. The idea was for the Commissioner to communicate directly with the administrative region, possibly repeating messages of national significance, or instructing about local disaster recovery actions, evacuation operations, etc.

The tour goes on with a very interesting area, stuffed with original electronic and communication material. Communication from the bunker to the other similar bunkers withing the UKWMO was possible through a dedicated system called Emergency Communication Network (ECN). The main function was that of constantly updating the map of the fallout and of the operations taking place at all levels, including all surviving infrastructures. Many maps and teletypewriters, original components of the system, are part of the display.

The ‘brain’ of the system was the Message Switch Exchange (MSX). A top-tier system elaborated by British Telecom in the 1980s, it looks exceptionally complex. The lit cabinets and modules provide a really vivid impression of how it should have looked like back in the Cold War years. The electronic cabinets and wiring driving to the rooftop antenna are still lit as well.

A rare, incredible portable satellite communication antenna is on display. This was employed in peacetime condition, and stored inside the bunker when under attack.

The screens where the meteorologists and nuclear scientists displayed all the information gathered and prepared forecasts are another unusual Cold War sight.

Perhaps unexpectedly in a 1980s hi-tech environment, a purely analog, wired telephone exchange system is on display. This is original as well, and was kept in service as a ‘last line’ backup system within the ECN until 1992, should the futuristic MSX system fail under an attack.

A complement to the exhibition of the RGHQ is the fire control room, where a big screen and several communication consoles were employed for directing firefighting actions at a regional level. Following the experience of Nagasaki and the extensive nuclear tests of the 1950s, it is known that fires resulting from the extreme temperature and radiation intensity associated with a nuclear explosion are possibly even more dangerous to buildings and infrastructures than the shock-wave itself.

A display which is not original from Hack Green, but found an ideal home in this bunker, is made of a reconstructed room from the Regional Air Operation Center (UKRAOC), which would gather information from the BMEWS. The material on display used to be at RAF High Wycombe, where the UKRAOC facility was located in the Cold War years.

Fed by the BMEWS early warning station at Fylingdales, the apparatus in this room was constantly updated on the defense situation. A Soviet ICBM attack would be detected here, and from here the alarm signal to the entire national civil and military defense system would be triggered. This really one-of-a-kind reconstruction is really evoking, with the original panels all lit, and a dim light background!

A final room on the underground floor hosts a reconstruction of a Soviet missile launch room. Perhaps not accurate as a reconstruction, it is however centered on original material and memorabilia items from the Soviet bloc. This area has been employed as a set for movies.

At the base of a second stair well ascending to the ground floor you can find a reconstruction of one of the more than 1 thousand peripheral posts of the ROC. Such posts, scattered on the UK territory, gathered information for the RGHQ, and constituted the ‘sensors’ of the nuclear attack detection network. The technical gear includes over-pressure and radiation intensity transducers.

Getting there and visiting

The bunker is in a very secluded location, about 25 miles west of Stoke-on-Trent, and roughly 60 miles from Liverpool and Manchester. Very little advertised in the area, and not much known to the general public even in the UK, this hidden gem can be reached very conveniently by car, not much conveniently with public transport. The exact address is French Ln, Nantwich CW5 8BL, United Kingdom.

The bunker was built far from the crowds. Do not be worried as you see the road getting narrower and you feel like your NAV is taking you to nowhere – you are probably on the right path! Once there, you will find a large inside parking, and a top-level management of the entire facility.

Visiting is on a self-guided basis, with tons of explanatory panels and illustrations allowing to make the most out of your visit even if you have just a normal interest and preliminary knowledge of the topic. For a specialist, this super-interesting, one-of-a-kind site may require at least 2 hours for capturing the details, and possibly take pictures. Website with visiting information here.

York Cold War Bunker

Besides the impressive Minster and the beautiful historic town, York has the distinction of being the seat of one of the few Cold War bunkers preserved in the UK. Differently from Hack Green (see above), the bunker in York was installed relatively late in 1961, in the middle of the Cold War. Since then and until the collapse of the USSR, it acted as a node in the UK Warning and Monitoring Organization (UKWMO), collecting information and coordinating emergency actions around York in the event of a nuclear attack. A cluster of reporting points was linked to the bunker in York, which took the name of Headquarters of the N.20 Group within the UKWMO.

An eminently intelligence collection and information relay facility, the bunker was manned by the Royal Observation Corps (ROC), who provided voluntary civilian staff to support the monitoring and communication functions of the bunker in the UKWMO network. The bunker ceased operations and was basically sealed in 1991. Until that time, the ROC ran the facility, carrying out regularly scheduled drills and simulations. The bunker was designed and sized to offer its staff a self-support ability of a few weeks in a nuclear fallout scenario. Besides all supporting facilities, including water tanks, pumps and power generators, the facility was centered on a set of sensors for nuclear blast detection, as well as provision for fallout forecast and monitoring.

The bunker has been taken over by the English Heritage, a structured nationwide historical conservation association, which restored the site and opened it to the public.

The York Cold War Bunker is not far from the historical center, yet in a quiet residential area. Access is from a small parking area among low-rise buildings. The greenish paint of the concrete walls and the tall metal antenna on top cannot be spotted from much farther away than the parking itself. Curiously, the pedestrian door of the bunker stands some feet above the ground, and can be reached via a concrete stairway. Then once on top and inside, you need to descend some flights of stairs to get underground.

Compared to the Hack Green bunker, the York group headquarter is more cramped, with smaller rooms, lower ceilings and narrower corridors.

The first part of the visit covers the supporting facilities. These include a ventilation system, which as customary for nuclear-proof bunkers (but the same is true for older bunkers dating from WWII) filtered the incoming air and ejected the inside air, basically pressurizing the bunker environment with respect to the outside atmospheric pressure. This avoided passive ingestion of contaminated air from the outside.

A power generator and a water pumping system are also visible. A control panel for all the plants has been preserved, similar to the machinery in this area, dating from the time of construction.

The centerpiece of the visit is of course the reporting room. The reason for putting a headquarters in relatively low-sized York was the presence in the area of significant food production industries, as well as of a major railway node in Northern England. Furthermore, military facilities like the only BMEWS station in the UK happened to be in Fylingdales, northern Yorkshire. These features would make York a valuable strategic target for an attacking enemy. The main function of the bunker within the UKWMO was that of ascertaining the position and intensity of a nuclear explosion on the territory covered by its jurisdiction.

Anticipated by the early warning ballistic missile detection system protecting the UK, the hit could be recorded by the sensors available in the bunker or in other reporting points scattered around in the country. The bunker would then try to predict and follow the evolution of the fallout. This would allow coordinating emergency and recovery actions including fire suppression, medical evacuation, water and food transport and supply, etc.

The central reporting room looks mostly like an operations room in a military headquarter. It is structured on two levels, with large maps and boards for visually updating the situation and writing information. Batteries of telephones and teletypewriters allowed obtaining communications and sending updated information to allow emergency services as well as decision centers to carry out post-attack operations. This system was not dissimilar from the counterpart beyond the Iron Curtain (see for instance this center in Poland).

Nearby the reporting room, the components of the sensor suite allowing to detect the position and intensity of a nuclear explosion are on display.

The first is the bomb-power indicator (BPI). The working principle is that of reading the over-pressure caused by the shock-wave invariably produced by an explosion, and particularly intense for a nuclear explosion, releasing an immense amount of energy in a small volume and within a very short time. The supersonic traveling shock-wave is responsible for the mechanical breaking of building and superstructures, like antennas, suspended power lines, bridges, piers, etc. Being a wave of pressure, its intensity can be measured by pressure transducers, which for the BPI show the reading on a simple analog dial.

The transducer, seen handing from the ceiling in the exhibition, would stand on the rooftop of the bunker, exposed to the explosion. This type of sensor was also installed in smaller reporting points scattered over the territory of the UK.

A second sensor was the ground zero indicator (GZI). Here the working principle was also very simple. The main element in the GZI is a metal drum with a small hole in the side, and a piece of photographic paper covering the inside surface of the cylinder. An explosion would send a high-energy light beam through the hole, producing an impression on a precise point on the paper. By positioning in a very accurate way the drum on its pedestal on top of the bunker, according to a precise fine-tuning, it was possible to retrieve the direction of the incoming beam. By composing the reading of more than one precisely-located drum, it was possible to pinpoint the position of the explosion by triangulation, both in terms of geographical position and altitude. The latter is a very relevant practical information, since for instance the quality and hazard of the fallout are strongly related to the proximity of the explosion to the ground.

The GZI, a purely analog sensor, had the odd feature of requiring collection of the photographic paper by venturing outside of the bunker after and explosion, i.e. facing the fallout.

The third and most evolved system on display is an AWDREY computer. The name stands for Atomic Weapon Detection Recognition and Estimation of Yield. This artifact is very rare to see, and a quite refined piece of engineering for the time. It was supplied to 12 headquarter bunkers of the UKWMO, including York, and was operative from the early 1970s. The computer is the computational part of the system, whereas the detection system was based on a sophisticated transducer put outside, on top of the bunker. The working principle was much more sophisticated here, and related to the evolution of the intensity of the radiation coming from the core of the explosions in the first instants of the detonation process. Several stages of a nuclear explosions happen in a row on a scale of a few millionths of a second. These include a predictable oscillation of the intensity of radiation. The exact features of this oscillation are correlated to the yield of the explosion. The ability of AWDREY to collect and interpret data from the early stage of the explosion would allow it to reconstruct the position and yield of the explosion at once.

Tuned on experimental data from nuclear testing in the field, this system delivered good general performance, with some inaccuracy in case of intense atmospheric phenomena taking place – or during fireworks, when the York system was apparently misled in one occasion, interpreting it as a Soviet attack!

The tour is completed with a view of the dorm for the civil servants of the ROC, and with a short exhibition on some historical and political aspects of the Cold War.

Getting there and visiting

The York Cold War Bunker is professionally managed by the English Heritage. Visiting is only possible with a guide. Please note that as of 2022, pre-booking is strictly necessary, since there is no ticket office on site. The guided tour lasts about 45 minutes, including a well-crafted introductory video. At the time of writing, only the first underground floor is open for a visit, but plans for an expansion of the visible part of the facility are being drafted.

The tour is very interesting and detailed, with some educated humor to make it more enjoyable! For specialists, it will be too quick, especially if you like to take pictures. However, the site indeed deserves a careful look also for the more technically-minded people, especially considering the little number of similar facilities open in Europe – and of course in the UK, where it is a one-of-a-kind destination, and a true must for Cold War historians.

The location is about two miles west of York Minster. Convenient to reach by car, several public parking lots are available in front of the gate or in the neighborhood. The exact address is Monument Cl, Holgate, York YO24 4HT, United Kingdom. Website with full information here.

Herdla Torpedo Battery – Defending Bergen in WWII and the Cold War

Despite overshadowed by the natural beauties of Norway, the heritage of the rich war history of this Country would really deserve a dedicated trip. Thanks to its geographical location, this Scandinavian Nation had a primary strategic role both in WWII and the Cold War.

Hitler’s Third Reich military forces conquered Norway early in WWII (Spring 1940), gaining an effective stronghold for launching sea and air patrolling missions over the Norwegian Sea and the northern Atlantic. The long coastline stretching from the Skagerrak strait up to North Cape was made impenetrable to enemy invasion, building anew a capillary network of fortifications – the Atlantic Wall. This masterpiece of military engineering was based on an extensive catalog of reinforced concrete standard elements (Regelbau in German), ranging from fortified casemates to radar towers, to observation and target range finding stations, to bunkerized gun batteries, etc. These elements were assembled in larger fortified compounds, placed in key strategic locations along the coast or in the narrow firths reaching to major ports and towns, like Bergen or Trondheim.

Typically run by the Kriegsmarine (Navy) or Luftwaffe (Air Force), these forts may comprise measuring stations, anti-shipping guns, anti-aircraft cannons, plus barracks, services, ammo storages, and even airfields in some cases. They were built not only in Norway, but having been originally planned by the Third Reich to protect the entire coast of conquered continental Europe, they were erected along the shoreline also from Denmark down to France.

As a matter of fact, many of the Norwegian fortresses of the Atlantic Wall rank today among the most massive and well-preserved of the entire line (see here for some highlights).

But the war history of Norway, and of its mighty military infrastructure, didn’t stop with the end of WWII. With the start of the Cold War, Norway became a NATO founding member, and once again of great strategic value. It found itself in close proximity to the USSR, and with a long coastline facing the sea corridor taking from the highly-militarized Murmansk and Kola Peninsula (see here) to the northern Atlantic.

Most of the Atlantic Wall forts, especially anti-shipping and anti-aircraft gun batteries, were obsolete by the 1950s, and were soon deactivated. Some were abandoned or, when retained by the Norwegian military, they were modified to cover new functions.

In a few cases, the original mission of the site by the Third Reich was retained by NATO forces in the Cold War. This is the case of the torpedo battery in Herdla.

The fortress of Herdla was a major strategic fort in the Atlantic Wall, allowing to keep a watch on the entry point to the inner waters leading to the large industrial and military port of Bergen. Thanks to the morphology of the area, featuring a rare spot of flat land nearby a steep and rocky cliff, an airfield was installed by the Third Reich besides a set of bunkers, effectively hidden in the rocks. A land-based torpedo battery, consisting of a range-finding and aiming station and torpedo-firing tubes, was part of the fort.

During the Cold War, it was decided that the torpedo battery could be still a valuable asset, and Herdla was retained by the Norwegian military – by comparison, the airfield, too short for the requirements of the jet-era, was not. Over the years, the torpedo battery was potentiated to keep up-to-date against the technological offensive capabilities of the Eastern Bloc, and to exploit the most modern identification and surveillance techniques.

The torpedo battery was part of a larger naval fort, which controlled also the barrier of sea mines implemented to stop a sea-based intrusion towards Bergen.

As a matter of fact, the area control functions and the offensive capability of Herdla were retained until the early-2000s, when the fortress was deactivated following the end of the Cold War and defense budget cuts.

Luckily however, the often neglected Cold War chapter of warfare history has in Herdla a valuable asset – an accurately preserved fortress regularly open for a visit. A modern visitor center welcomes the more curious travelers, leaving Bergen towards the remoteness of the coast. It retraces the WWII heritage of the Herdla site, thanks to an exhibition centered around an original Focke-Wulf FW190, recently salvaged from the bottom of the sea, and with a special history to tell. Then a visit to the battery, looking like it had just been left by the military staff, is a unique emotion for both the specialized war technology enthusiasts and the general public as well.

The following report and photos is from a visit taken in Summer 2022.

Sights

As outlined in the overview, the Herdla site today is centered on two major highlights. One is the visitor center, with the preserved relic of a unique Luftwaffe Focke-Wulf FW190. The other is the former torpedo battery and Navy area command bunker, Norwegian facilities installed during the Cold War in bunkers dating to the Third Reich era.

Visitor center & Focke-Wulf FW190 exhibition

The relic of a Focke-Wulf FW190 A-3 German fighter from WWII is hosted in a dedicated room, where a scenic lighting makes this impressive exhibit literally shine.

This exemplar of the iconic Third Reich fighter, produced in some thousands examples, and now almost impossible to find especially in Europe, is ‘Gelbe 16’ (which can be translated in ‘Yellow 16’) of 12./JG5, and its history is deeply related to Herdla.

It took off on December 15th, 1943, from the airfield the Luftwaffe had established on the flat area now lying ahead of the visitor center, at the time a very active German airbase.

Following troubles with the engine, it ditched in the cold inner water near the island of Misje, some ten miles south of Herdla, the pilot being able to abandon the doomed aircraft, and being saved by local fishermen – and returned to the Luftwaffe, who had a Norwegian resistance prisoner released in acknowledgment.

The aircraft sank to the bottom of the sea, but its memory was not lost by some of the locals, who clearly remembered the events. The Focke-Wulf remained there for 63 years, but it was finally located and pinpointed by the Norwegian Navy, instigated by local interest, in 2005. After preparatory work – including exploration dives, to assess the condition and to set-up recovery operations – the fairly well-preserved wreck was lifted to the surface on November 1st, 2006, and loaded on a tug. Conservative restoration work then took place in Bergen.

Instrumentation and the machine guns were all recovered, together with many further fragments of equipment. Interestingly, evidence of repaint was found during conservation, retracing some previous assignments. Yet the history of this very exemplar remains difficult to write in its entirety.

Finally, following completion of conservation works, a new home for the aircraft was prepared in Herdla, where a hangar was built anew – and this is where you can see it today.

The aircraft is in an exceptional state of conservation, considering it spent 63 years in sea water. The fuselage, wings and tail are not significantly damaged, with just some paneling having disappeared on tail control surfaces, due to corrosion. The swastika on the vertical stabilizer is still perfectly evident, like other painted details.

The propeller blades are all bent downstream, as typical for an emergency landing carried out without the landing gear and the engine still running. The tail wheel is there with its original tire, the emblem of the German brand ‘Continental’, still in business today, being clearly noticeable.

The instrumentation from the pilot’s control panel has been put on display separately. Also a gyroscope has been found. Everything is only slightly damaged. Similarly, the two machine guns, dismounted prior to lifting the aircraft from the sea, are little damaged, and displayed with some ammo.

Complementing the exhibition are a few other pieces from other wrecks, as well as some quality scale models and dioramas portraying Herdla in the days of Third Reich tenancy.

Torpedo Battery

Access to the torpedo battery, which was built in WWII just above sea level, is from a gate on the land side. From outside, the bunkers in the fortress of Herdla appear especially well-deceived in the rocks of the cliff.

What is seen today inside, however, dates to the years of Norwegian tenancy. The facility was updated in several instances during the Cold War, the last in the 1990s. Immediately past the gate, you get access to a modern and neat mechanics shop, where a partly dismounted torpedo allows to have a suggestive look inside this marvelous weapon.

Interestingly, Norway inherited and went on operating a significant number of German G7a (TI) torpedoes. This was the standard torpedo employed by the Kriegsmarine since 1934, and with some modifications (‘TI’ standing for ‘first variant’, the later variants bearing other codes), for the full span of WWII.

Propulsion power for this torpedo was from a piston engine, fed by high-pressure vapor obtained by the combustion of Decaline with compressed air stored onboard, mixed in a heater (i.e. a combustion chamber) with fresh water, similarly stored in a tank. The resulting mixture fed a 4-cylinder radial piston engine, driving two counter-rotating propellers. The exhaust in the water produced a distinctive contrail of bubbles, and the presence of a high-frequency moving mechanism had the side-effect of a significant noise emission. The head of the cylinders can be clearly seen in the dismounted exemplar.

Guidance was provided by rudder steering controlled with the help of gyros, whereas depth was controlled via a mechanical depth sensor. The torpedo could stay close to the surface or keep an assigned depth. In WWII the torpedo had no homing device – i.e. it was ‘blind’, thus requiring carefully putting it on a target-intercept trajectory. It could however cover pre-determined trajectories of some sophistication. The set-point selection for guidance and the yaw regulation gyro assembly have been taken out of the torpedo, and can be checked out in detail.

The range could be selected before launching, and was traded off with speed. It could be between 5.500 and 13.200 yards, and the speed ranged between 44 kn and 30 kn correspondingly. The German origin of the torpedo on display is betrayed by the writings in German on some parts.

Leaving the workshop through a gate towards the inner part of the bunker, a roomy supply storage area can be found, with some interesting material including torpedo parts, as well as a torpedo launching cannon.

This item represents the primary way of launching torpedoes in the early Cold War from land-based batteries or ship decks. This was a technology inherited from WWII, when coastal batteries of the Atlantic Wall ejected torpedoes from slots in the bunker wall, shortly above the surface of the water, employing cannons similar to this one (which dates from the Cold War period), thanks to a burst of compressed air. This cheaper, but less ‘stealthy’ and accurate launching procedure, was replaced by underwater launching tubes only over the years of the Cold War, featuring an increase in the level of sophistication of warfare. Correspondingly, the slots in the side of the torpedo battery bunker facing the water were bricked up, and torpedo cannons were retained mostly for use from the deck of warships.

From the storage room you get access to the core area of the battery. This is through a decontamination lock, with gear for anti-contamination testing, including paper strips for checking contamination from poisonous gas.

The battery features two diesel generators for electric power, employed in case of disconnection from the regional grid.

Less usual – for a military facility – is the presence of two air compressors. Compressed air is relevant for torpedo operation, being employed for the launch burst from the torpedo tube, as well as for propulsion and gyros in the G7a torpedo. The air compressors in Herdla are made by Junkers, solid German technology from 1961!

A few bunkerized resting rooms for the staff manning the battery can be found in the same area, besides the power/compressed air supply room and the torpedo room. The resting rooms are minimal as usual, with suspended berths, and much personal military equipment on display – coats, blankets, medical kits, and more technical material.

Finally, the core of the battery is the torpedo room. This is much longer than wider, access is via the short side. In the Third Reich years, the launching slot was on the short side to the opposite end of the room, right above the water. Today, this slot has been bricked up, and there is no window at all.

The torpedoes are aligned on racks along the long sides of the room. The launching system is via two underwater tubes, which are accessed via obliquely mounted hatches, one to each side of the room at the level of the floor. The section of the racks closer to the entrance door is actually a pivoting slide. The slide could be pitched down, thus allowing the torpedo to slip through the hatch in the firing tube. The original launch control console can be found to the right of the access door – in a mint condition, it looks really like it had just been put in standby following a drill!

Over the years, the stockpile of G7a TI torpedoes was upgraded especially in terms of guidance. The major modification was the adoption of wired control. This is based on a thin electric cable unwinding as the torpedo proceeds along its trajectory, keeping it linked with the launching battery. This upgraded model is called G7a TI mod 1. Control via a steering joystick and trajectory monitoring system could provide manual guidance to the torpedo, thus sharply increasing the chance of target interception. This technology is still in use today. Wire tubes can be found on top of the rudder of torpedoes.

Besides the G7a, Herdla battery received the TP613 torpedo, a weapon developed in Sweden in the early 1980s from previous designs. Exemplars of this torpedo, still in use, are visible in the torpedo room. In terms of mechanics, the piston engine of this torpedo is powered by the reaction of alcohol and Hydrogen-peroxide. In terms of guidance, this torpedo features improved wired communication for guidance and power setting (i.e. changing torpedo speed during the run), as well as passive sonar homing. A dismounted section exposing the engine can be found on display.

The wire tube installation on top of the rudder is featured also on this model, and examples of the wire are on display.

The original guidance console, made by Decca, with a prominent joystick on it, is on display as well!

Training and proficiency checks are typically carried out without a warhead, but with an instructional head. Distinctively painted in shocking red, and with powerful lights in them – to show their position to simulated targets during training exercises, when needed – these are on display in a number. Since the torpedoes, just like missiles, are very expensive, a way of recovering them after instructional use has been envisioned, in the form of inflating bags coming out of the head, increasing the buoyancy of the emptied torpedo and forcing it to surface when reactants tanks are empty and power is off.

Offensive warheads can be exchanged with dummy ones for training, bolting them to the body of the torpedo, which remains totally unchanged. A warhead with a 600 lbs explosive load, triggered by a proximity pistol, was typically put on G7a torpedoes. The proximity pistol was made of four petals, which on contact with the target were bent towards a conductive metal ring around the nose cone of the torpedo, closing an electric circuit and triggering the explosion.

Leaving the torpedo room and the bunker is via the same way you came in.

Sea Mines & Area Control Center

But your visit is not over. As mentioned, the Herdla coastal battery hosts an area control center, with provision to manage target detection facilities and the minefields in the waters around Bergen.

This part was built in a facility strongly potentiated with tight doors, typical to the shockwave-proof military construction syllabus of the Cold War. A sequence of roomy vaults carved in the rock hides a number of containerized modules, together with an exhibition of sea mines and related apparatus.

Most notably, an L-type Mk 2 moored mine and a Mk 51 bottom mine are on display, with a understated control panel. The latter is actually a portable controller for triggering the mines. Already before WWII, sea mines were often put on the bottom of the sea in shallow waters, or moored in deeper waters, to control access inner waters, firths, ports, etc. The Germans made extensive use of this technique in Norway, and following WWII this strategy was inherited by Norway to protect its waters from (primarily) Soviet intrusion.

Despite contact mines were still popular in WWII, they have been surpassed and gradually replaced already in that age by proximity mines, based on noise and – especially – magnetic sensors. Today, proximity fuses activated by the magnetic field of ships or submarines passing nearby are standard technology. Onboard electronics allows to distinguish between the magnetic signature (i.e. fingerprint) of different ships, thus avoiding any issue for civilian or friendly traffic, and activating only against enemy shipping. Degaussing techniques – i.e. the ability of military ships to hide their signature – have forced to improve detection technology, which is today extremely sophisticated.

Furthermore, for the protection of ports and friendly waters, sea mines are typically controlled and triggered by hand, upon detection and localization of enemy shipping, by means of dedicated detection facilities on land or water. This improves precision and allows more flexible defensive-offensive tactics, since a human chain of command has control on the minefield, instead of a pre-determined computer program.

To trigger the mines, consoles like that on display are employed, where a trigger for each mine allows precise control over the minefield.

The first containerized control center hosts a similar, yet much more modern, dedicated console. Everything in this movable control center is very neat, and really looking like reactivation might take place in just moments! Of interest is also the situation map, covering the area around Herdla and the water inlet to Bergen.

A nearby container reveals berths and a small living area for stationing staff.

Yet another container hosts a complete situation room covering the area. Similar to the coastal battery in Stevnsfort, Denmark (see here), a careful eye was constantly overlooking the shipping in the area.

In the same container, a console for steering torpedoes, more modern than that previously seen in the torpedo battery, is on display.

All in all, Herdla is a one-of-a-kind destination, of primary interest for those interested in Cold War military history, enjoyable and easy to visit. Totally recommended for everybody with an interest in history, with much to see and learn for the kids as well.

Getting there & Visiting

Herdla fortress features an official visitor center with a large parking area, and amenities including a small restaurant and a shop. The official website is here. It can be reached about 27 miles north of central Bergen, roughly 45 minutes by car. The address is Herdla Museum, Herdla Fort, 5315 Herdla.

The torpedo battery and control bunker can be visited only on a guided tour. Visiting from abroad, we scheduled an appointment, and were shown around by the very knowledgeable guide Lars Ågren, a retired officer of the Royal Norwegian Navy. He joined the Navy in the late 1970s, in time to gain a substantial, hands-on Cold War experience during the final, high-tech part of that confrontation. He was promoted to tasks in the NATO headquarters in Belgium, later returning to Norway, and totaling more than 37 years in service. He is strongly involved in the management of the Herdla site. Chance is for you to embark on a visit with this guide, or other very competent guides who will satisfy the appetites of more committed war technicians and engineers, being capable of entertaining also the younger public as well.

A visit to the torpedo battery and control center may last about 1 hour. Seasonal changes to opening times may apply, as common in Northern Countries, therefore carefully check the website.

Former Soviet and East German Military Bases in the GDR – Pictures from Above

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Soviet Ghosts in Germany

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At the end of WWII, the territory of conquered Germany was split in four sectors by the then-Allies – the US, Great Britain, France and the USSR. A substantial part to the north-east of the country fell in Stalin’s hands. A few years later, following a re-organization of all territories occupied by the Red Army during WWII, the Soviet part of Germany was turned into a communist-led state known as German Democratic Republic (‘GDR’, or ‘DDR’ in German language).

Especially from a military standpoint, similar to Poland, and later Hungary and Czechoslovakia, this produced a kind of cohabitation. As a matter of fact, besides clearly backing the communist dictatorship in occupied countries, the Soviets did not quit at all from newly acquired western territories. On the contrary, thanks to the position on a potential war front had the Cold War turned hot, the westernmost Soviet-controlled countries – with the GDR on top – were stuffed with Soviet military bases, and hundreds of thousands troops. These shared the map with the national military, which in the GDR were known as NVA (an acronym standing for the German equivalent of ‘National People’s Army’).

The national and Soviet forces often took control of separated military facilities, and while operating in a coordinated fashion, they were substantially different entities. As said, this was typical to many Soviet-controlled countries. Yet especially on the relatively small East German territory, of high strategic value thanks to the shared border with the West, the total number of tank bases, training academies, air bases, missile bases, nuclear depots, shooting ranges, etc., reached an unrivaled world’s peak, when compared to the population or the size of the country.

Following the crisis leading to the end of the GDR in 1989, and the collapse of the USSR roughly two years later, all these military assets turned surplus. The German reunification, and the disappearance of a significant military opponent in the close vicinity of the border, triggered a rationalization of military resources in Germany. Most of the NVA bases were closed. The Soviet-controlled installations were evacuated more slowly – it took until 1994 to bring back to their Russian homeland the thousands of troops and tonnes of material stationed in Germany. Once returned to Germany, also most of these bases were deactivated and closed.

Since then, the fate of these former military facilities in Germany has been in the hands of local governments or national initiatives. As a matter of fact, following a few decades spent as ghost bases – a real paradise for urbex explorers! – most air bases have been converted into solar power plants. Some of them have retained an airport status, either with a very reduced runway, or in some cases being turned into full-scale commercial airports. There are exceptions too, as some are still at least partly abandoned, and while invaded by vegetation, they are still totally recognizable especially from above. Other bases, like tank bases or nuclear depots, while mostly earmarked for demolition, have been comparatively better ‘preserved’ – at least, they have been attacked by the state more slowly, so there is still much to see there.

You can find on this website several reports about quite a few of these military bases in the former GDR – especially airbases – from a ‘ground perspective’. Sometimes, it is difficult to appreciate the size, shape, as well as their concentration over the former GDR territory. In order to better show these aspects, now here you have a portrait of many of these bases from the air!

The photographs in the present post are from a single, two-hours flight on a Cessna 172 single-prop aircraft. The flight took place in July 2019. As you can see from the locations pinpointed on the map below, on our route we met not less than 15 former (or still active) military items. And this is just a short trip mostly in southern Brandenburg – i.e. the region immediately south of Berlin.

This report is a complement to other chapters on this site, yet it is especially interesting on its own, as a comprehensive bundle of aerial pics on this subject is not easy to find!

Sights

Points of interest are listed following the flight plan, which was flown roughly as on the map, in a counter-clockwise direction, starting from Reinsdorf Airfield.

Soviet Nuclear Bunker Stolzenhain

This one-of-a-kind facility – there were actually two such depots, but one is today demolished and inaccessible – used to be a major storage for nuclear weapons for the Soviet Western Group of Forces, which included all Soviet troops stationed in the GDR.

The bunker is today closed, but it apparently lies on private land, hence sparing it from being turned into something else (or simply flattened) by the local government. You can see a dedicated report in this chapter.

Vegetation has grown wild in the area, but from above you can clearly spot the rectangular perimeter of the external concrete wall. From north to south, an internal road crossed the rectangle in the middle.

The bunkers are half-interred, hence from above you can barely spot the entrances. These are aligned along a service road arranged in a hexagonal shape.

To the south of the bunker area, you can spot a former group of barracks and an access road heading west. Construction and demolition works are taking place in this area.

Control and Reporting Center Schönewalde

This is an active military installation, and actually quite an advanced one. It is tasked with monitoring the air operations over a large part of the airspace over Germany.

The origin of this half-interred technical installation can be traced to the 1970s, when the site was activated under responsibility of the NVA. Following the end of communist rule and after German reunification, unlike many others this site was not demolished, but instead it was developed further, and pressed into the defense chain of NATO since the mid-1990s.

You can see many half-interred warehouses, garages for trucks, a smaller radar antenna to the west of the complex, close to a helipad.

There is also a larger antenna to the northeastern corner of the CRC.

Holzdorf Air Base

This large airport used to be an airbase of the NVA. It is one of the few airports from the Cold War in the GDR which were turned into a full-scale modern airport. Today it is a base of the Bundeswehr, i.e. the German military.

As we approached from north, you can spot first typical large communist buildings, forming a citadel which is likely still today hosting troops and their families. There is also reportedly a flight academy for helicopters in this complex, north of the airport.

The airport features large hangars for military helicopters to the northwest of the runway.

A rather old-styled control tower can be seen to the south of the runway.

Falkenberg Air Base

We reached the southernmost point on our flight with the former Soviet base in Falkenberg. This old base dating to the 1930s went on to be developed into a Soviet base home to fighter aircraft, MiG-23 and later MiG-29. Close to the airfield, there used to be a SAM missile battery (to the west of the runway).

Approaching from the north-west, you can notice a small ghost town and a large technical area, with what appear to be big unreinforced maintenance hangars, today used for something else by local companies.

The airport is today dedicated to light aviation activities. The runway has been shortened, and sadly large portions of the original airfield have been covered with solar cells.

Most interestingly, in the trees to the northwest of the runway, you can spot four unfinished aircraft shelters – possibly of the type AU-16, which could host both the MiG-23 and MiG-29. They look like short concrete tunnels. They should have been covered with land, but works were interrupted in 1990.

More aircraft shelters – completed – can be found to the east of the field, today used for storage, as it is often the case.

Finsterwalde Air Base

This installation was operative since WWII, when the large hangars and control tower still in place to the south of the apron were built. The base went on serving as a Soviet base, hosting fighters and fighter-bombers of many kinds along its illustrious history. A visit to this site, with its nuclear depot, can be found in this chapter.

Approaching from the southwest, we flew over the nuclear storage bunker, made for nuclear warheads to supply aircraft operating from here. The columns once holding the crane to lift the warheads can be clearly spotted.

There is also a group of Soviet-style houses for the families of the troops. Apparently somebody is still living there!

The base was enlarged with reinforced shelters to the north and southwest of the runway. The large hangars to the south are still in use with local companies, some of course connected with flight operations – this airport is still active for general aviation operations.

Enroute to the next waypoint, we flew over a natural preserve, which offered some quite spectacular sights.

Alteno-Luckwalde Air Base

This airfield north of Finsterwalde was a reserve airport of the East German NVA. While never developed to the extent of primary airfields, it was among the few reserve air bases to receive an asphalt runway.

Today, the view is rather desolating – the airfield has been totally covered with solar cells.

Brand-Briesen Air Base

This WWII base was selected for quick and substantial improvement since the early Cold War years, and went on to be one of the most developed Soviet air bases in the former GDR. In the beginning it hosted Ilyushin Il-28 bombers, but in the jet age it was home to a number of different squadrons and aircraft types. You can find the results of the exploration of a part of this base in this chapter.

Approaching from the south, you first spot an immense hangar, conceived at the turning of the century for commercial airships, and later turned into a water park – Tropical Island.

 

But more interestingly, to the south of the airfield – unusually far from it, actually – you can find a depot for nuclear weapons, to supply the aircraft operating from the base. Similar to Finsterwalde, the pillars once holding the crane for lifting the warheads can be clearly seen.

Still to the south of the airfield, the local citadel for the troops is today an interesting ghost town.

As you may notice, the airfield is today closed, and has been largely converted into a recreation park. Incredibly, they decided to build an array of small houses on the former premises of the airport, and in close proximity to the monster airship hangar.

Yet some relics from the past function of the air base are to be found scattered around. These include aircraft shelters, and more rare engine testing facilities – V-shaped concrete walls emerging from the grass nearby some of the shelters.

Kleinköris Air Base

This airbase was activated in the late 1960s as a reserve airfield for the East German NVA. It was used for exercises, and as a home base for helicopters of the Volkspolizei, i.e. the police of the GDR. After deactivation, it was used as a military storage for a while, and finally closed.

The appearance, perfectly evident from the air, is rather unusual – it features a long grassy runway, with concrete taxiways at the ends. To the reports from the time, this is the original configuration of the airbase. Luckily, it is basically still intact.

Wünsdorf

The name of this small town will be forever linked to the two military high commands which were headquartered on its premises – Hitler’s OKW first, and the command of the Soviet Western Group of Forces for the full span of the Cold War. You can find a dedicated chapter here.

From above, you can get a nice view of the extension and shape of this military town, as well as good portraits of some of the highlights in it. Approaching from the southeast, you first meet the most famous building in Wünsdorf, the officers’ house. This majestic building dates from the early 20th century. It knew an extensive renovation during the Cold War years, as an officers’ club for the Soviet Red Army.

This huge building features a statue of Lenin on one side. In the wings to the back, you can find a swimming pool and a theater. The round building with a mural is a late Soviet addition, and once hosted a circular panorama painting.

The high command occupied the buildings north of the officers’ club, today converted into something else.

Another highlight of Wünsdorf are the many bunkers. These include the Maybach bunkers from Hitler’s era, once hosting the OKW. These were designed for deception as living houses, but could withstand aerial bombardment. They were blown by the Soviet, with only partial success. The Zeppelin bunkers, like cusped concrete towers, were designed to resist bombardment, by deviating air-dropped bombs falling from above along the sidewalls and down to the ground nearby.

Soviet bunkers were located very close to the array of Maybach bunkers. They are largely interred, and from above you can see some concrete tunnels in the trees.

The railway line and station is an historical track from the time. The Wünsdorf-Moscow line operated in both ways on a daily basis. The service was suspended only in 1994, at the very end of the withdrawal of the last occupation troops to Russia – for many, the symbolic end of Soviet occupation.

The buildings for those stationed in Wünsdorf and their families were really many. Today this town, having lost its original core business, is largely uninhabited.

Sperenberg Air Base

Not far from Wünsdorf, you can find the former Soviet air base of Sperenberg. This immense transport base used to be a major logistic base for the Soviets, which operated from here with their monster cargo planes. More on this base can be found in this chapter.

Approaching from the east, you first meet the buildings for the troops, to the east of the airport and close to the village.

An aerial view allows to clearly capture the shape of the base, with two large parallel taxiways with a huge array of parking bays for transport aircraft, and a long runway – still basically intact! – to the south.

A large hangar with an inscription in Russian can be found to the east, whereas a small terminal building can be spotted ahead of a large apron to the west.

Today the airport is closed, but rumors have surfaced more than once concerning its evaluation as a third airport for Berlin. This may justify its missed conversion into another desolating field of solar cells.

Kummersdorf Military Laboratory

A bit of an outsider here, Kummersdorf holds a very relevant place in the history of war technique thanks to pre-Soviet activity. In the late 1920s the Germans established here an experimental laboratory especially dedicated to novel weapons. It can be said that western rocketry was born here, since the group of Walther Dornberger, later joined by Wernher von Braun, started operations on liquid-propelled rockets in this lab.

Activities later moved to somewhere else, and finally landed in Peenemünde – see this dedicated chapter.

The laboratory in Kummersdorf was used also during WWII to test captured material, especially enemy tanks. Following the end of WWII, the Soviets took over the facility, but turned it into a more standard military base.

The red barracks in typical German style can be clearly seen from above. Most of the post-WWII depots are falling apart, but the area is really huge.

Forst Zinna Military Base

This base is located to the northeast of Jüterbog-Altes Lager, a huge Imperial, Nazi and later Soviet military complex, including two shooting ranges, a few airfields, an academy and many barracks.

Forst Zinna base was operative in the years of the Third Reich, named after Adolf Hitler himself. It went on to become a large base for the artillery groups training in the nearby shooting ranges. A dedicated chapter can be found here.

From above, it is clear that demolition works are slowly wiping out the base. Yet there is much housing left to visit. Typical German buildings share the area with shabby Soviet ‘socialist housing’. A bridge passing over a major road and railway track going to Berlin links the base to the shooting range north of it.

Altes Lager Shooting Range and Barracks

The shooting range north of Forst Zinna is pointed with concrete control towers. The area is very extensive, and quite more convenient to explore from above!

Closer to Altes Lager, many barracks can be seen aligned along a major road. From the style, these appear to be from an older time than the Soviet occupation years.

Jüterbog-Altes Lager Training Academy

This pretty unique piece of architecture dates from the years of the Führer, and used to be an academy for air force technicians. It was later turned into a military academy for Soviet staff, and a KGB office was reportedly active here too. A report can be found in this chapter.

From above you can better capture the plant of the complex. The half-circle to the north hosted a big theater in the basement.

Most strikingly, in the western part of the complex you can see sporting facilities which have been completely refurbished, and are actually in use. These include a football field and some tennis courts. There is also a pool, but this has not been refurbished.

Jüterbog-Niedergörsdorf Air Base

This large air base was jointly operated by the NVA and Soviet air force. You can find a report in this chapter.

Approaching from the northwest you can see aircraft shelters, whereas to the northeast you find an array of large maintenance hangars. These have been turned into something else, including a test driving facility, which chopped part of the original apron.

To the south of the runway, the base used to feature a large number of parking bays for helicopters. The runway has not been physically cut, albeit a central section of the original concrete has been taken away. Air operations today are apparently limited to ultralights and trikes.

A menacing army of solar cells is attacking the perimeter of the base from the east! An unmissable sight next to this base (to the east) is a former aircraft shelter turned into a private collection of Soviet memorabilia – Shelter Albrecht (covered in this post).

Enroute to the next waypoint, you can clearly spot from the air a military hospital complex (see this chapter) – rather famous among urbex fanatics… – and other service buildings.

Jüterbog-Damm Air Base

This base dates to the years of the German Empire. It was forcibly demilitarized after WWI, but strongly developed in the years of the Third Reich, with the construction of large concrete hangars and service facilities, and a grassy airstrip good for fighter planes of the era.

Following conquer by Soviet forces, the airbase was partly dismantled, but at some point a SAM battery appeared on this site.

Today you can appreciate the size and special shape of the concrete hangars, a true engineering masterpiece from pre-WWII years.

Landing in Reinsdorf

Finally, you can see here a vid of the perfect approach and landing into the touristic airfield of Reinsdorf, about two hours after take-off!

Practical Notes

This flight was carried out from Reinsdorf Airfield (ICAO: EDOD), located about 10 miles southeast of Jüterbog, the most sizable town in the neighborhood. The airfield is roughly 1 hour driving south of downtown Berlin, very easy to reach with a car.

The flight would have not been possible without the help of a fantastic couple, Mrs. Kolditz and her husband, who own a nice French-built Cessna 172 from the mid-1960s, D-EBLD, portrayed here.

There are some features making this very aircraft ideal for aerial pictures. Besides the high-wing configuration, this exemplar features a side window which can be completely opened, allowing for an unobstructed view of the scenery below.

The man is a former NVA pilot, something that must have played a part in him accepting to set up this very unusual flight plan! His great ability as a pilot helped much in having the aircraft in the right position to take the desired aerial pictures.

Thanks to the availability of the Kolditz family, setting up the flight was an easy task, even operating from abroad and through much Google-translation!

Another key-element in this adventure was Federico, a friend of mine sharing my passion for flying, who lives in Berlin, and played an essential part in co-financing the flight and translating between me and the pilot, as – perhaps incredibly, considering the content of this website… – I don’t speak German.

If you are interested in sightseeing flights south of Berlin, I suggest inquiring with the folks at Reinsdorf, a very active airfield with many facilities for touristic and pleasure flights. Website here.

Cold War Forts and Museums in Denmark

During the Cold War the condition of Denmark on the international stage was among the most complex. Coming from years of neutrality before WWII, conquered in a matter of days in spring 1940 by neighbor Germany, at that time in the throes of the Nazi fury, it found itself on the front line of the two opposing blocs soon after May 1945.

Having not been occupied by the Soviets during WWII, it could better choose about its future, and in 1949 the mother country of the Vikings joined NATO as a funding member – unlike neighbor Sweden and Finland – thus giving its availability to its Allies to help countering Soviet influence over the territory under its control.

History in brief

Often overlooked when looking at the world map for its relatively small area, at the beginning of the Cold War the geographical position of Denmark nonetheless was – and, to some extent, still is – strategically very relevant. It is right on the inlet of the Baltic Sea, with a proximity to the foreign coasts of Norway and Sweden such to allow easily blocking the marine traffic on the Kattegat strait, when needed, by means of mere cannon fire from the coast. During the Cold War, this meant a virtual control over a sea where the USSR and Eastern Bloc Countries had many industrially relevant and non-freezing ports, as well as navy bases. Furthermore, the islands of Denmark, where large cities like Odense and Copenhagen are, can be found as close as 1.5 hours by boat to the coast of the German Democratic Republic – once one of the most heavily militarized countries on earth, also thanks to a massive Soviet presence. The smaller island of Bornholm, further east, is even closer than that to the coast of Poland.

A curious fact in history demonstrated the proximity of Denmark to the communist sphere of influence, shaking the minds of top ranking Soviet military. On March 5th, 1953, on the very same day of Stalin’s death, the first defection of a jet fighter from the Eastern Bloc took place, when a Polish MiG-15 on a routine flight along the Baltic Coast suddenly left his mates and rushed to Bornholm, where it landed on a field, leaving the aircraft in almost pristine conditions.

The cautious reaction of the Danish government and military forces reflects the position of the country at the time – they had identified the USSR and their satellites as a clear and present threat, and consequently they had taken the side of the West. Yet Denmark knew it could not withstand a direct military hit by the Soviets for more than a few hours, therefore as a form of self-protection, any form of provocation, at least in the early 1950s, was carefully avoided. While the pilot of the MiG was allowed to escape to the UK and then the US, the aircraft was quietly ceded to the US military for technical inspection in the FRG, but then re-mounted and returned to Poland. Other examples of a policy of constant detente with the Soviet Union are represented by the refusal to have NATO bases on its territory, or despite the adoption of the Nike missile system for the airspace protection, the missed deployment of the corresponding tactical nuclear warheads.

Of course, in recognition of the strategic relevance of this pleasant country, plans for a Soviet invasion which would strike in northern Europe, with the objective of reaching to the ports of the North Sea in less than a week from Eastern Germany, included as a major target the quick occupation of the Jutland peninsula, and of the islands of Denmark as well. This had to be done by marching fast through the northern regions of the Federal Republic of Germany, and simultaneously landing troops on the Danish islands.

About this post

Albeit not enough populated to sustain an army capable of resisting the eastern opponents on the other side of the Iron Curtain, thanks to its position on the map, Denmark took over seriously a fundamental border monitoring and interdiction task in favor of all NATO forces. Two tangible witnesses of this are the military bases of Stevnsfort and Langelandsfort, both located on the southern coasts of the islands, overlooking key sea straits, and pointing south to the East German coast. Both have been shut down after the end of the Cold War, and now they can be visited as top-tier military museums.

Further souvenirs from the Cold War era can be found in the Defense and Garrison Museum in Aalborg, a wide-spectrum military museum with a focus on WWII and the Cold War, and in the Danish Museum of Flight, where exemplars from the heterogeneous wings of the Danish Air Force are displayed, together with unique specimens of Danish aircraft production from the inter-war and early Cold War period.

This post covers all these four sites, visited in summer 2019. Presentation doesn’t follow any special order.

Navigate this post – Click on links to scroll

Sights

Cold War Museum Stevnsfort

This museum on the eastern coast of the island of Zealand (the same of Copenhagen) is actually a former Cold War military fort, operative from the early 1950s to the year 2000. It was re-opened as a museum in 2008, carefully preserved in most part in the forms it had in the 1980s, the most technologically advanced years of the Cold War.

By the entrance to the museum area you can see three surface-to-air missile, namely an old Nike-Ajax, and a much more performing – and bigger – Nike-Hercules. Both were part of the US Nike airspace protection system, which was deployed in Denmark around Copenhagen. The missiles are from the Cold War years, but were not originally present on Stevnsfort.

Strictly speaking, Stevnsfort is not the part of the installation you access first. The area you meet when getting in from the parking used to be a missile base in charge of the Danish Air Force. It was built for the Hawk system, another US interdiction surface-to-air missile system, the heir of the Nike system. Actually, Nike Hercules batteries in Denmark were withdrawn from use – as elsewhere, see this post – in the 1980s. Their role was taken over by Hawk missile batteries, gradually entering service since the 1960s, and operated till 2005 in Denmark.

Differently from its predecessor, the radar-based Hawk system was entirely movable, making it more flexible and less vulnerable. As a result, there are basically no bunkers in this area, and all constructions here are ‘soft’. Target designation and tracking was demanded to three sub-systems, namely a radar-pulse antenna for target individuation, an interrogation friend-or-foe (IFF) and a target-tracking/homing antenna.

Two radar-pulse antennas are displayed. The aerial emerges from a tent, which covers the electronics and motor of the system. Both are mounted on a truck trailer, which is actually totally movable. The range of the radar scanner was about 75 miles.

The IFF antenna is a smaller barrel-shaped device coupled with systems on-board aircraft, needed to distinguish between an enemy aircraft and a friend or ally. The target-tracking/homing antenna, with its distinctive two radar dishes, shares the installation setup with radar-pulse antennas – it sits on top of a trailer, covered in a green tent.

Close by, trucks and special moving cranes to mount the missiles on their launch gantries are displayed. Also containers for the missiles are shown, together with an example of the Hawk missile itself. The launch order could arrive only from the central Air Force command, except in case of a communication breakdown, when each missile base could decide on its own – at the high risk of making a mistake!

Farther on, power trucks and other launch systems are displayed besides batteries of Hawk missiles. The launch gantry is smaller in size compared to that of Nike-Hercules, but each gantry launches three missiles instead of only one. The gantry is anchored to the ground, and when inactive it is shrouded in a peculiar rubber-coated eyelid-like bubble, which can be quickly lowered to let the missiles out.

On the far end of the missile area, you can see an old-fashioned coastal cannon, part of the original fort, used as an illumination cannon in support of larger cannons in the battery.

One of the naval gun batteries is the first item you meet when entering the actual Stevnsfort fort. The fort was built between 1952 and 1955 for use by the Navy, and is the oldest part of the installation. Together with the Langelandsfort gun battery and command post (see below), it was tasked with monitoring marine traffic along the straits giving access to the Kattegat and the North Sea from the inner Baltic. For the purpose, it was supplied with a huge underground bunker, its most distinctive feature, as well as batteries of naval guns.

The 150 mm guns have an intriguing history. They were made in Nazi Germany early during WWII, for the Kriegsmarine ship ‘Gneisenau’. This was damaged when still in the dockyard, and the guns were re-designated to be placed on the Danish island of Fano on the North Sea coast, as part of the fortifications of the Atlantic Wall. Following the end of WWII in May 1945, the guns were captured and finally found their way to Stevnsfort.

The two-guns batteries were capable of 4-6 shells per minute per barrel, and could reach to the coast of Sweden, thus effectively closing the Oresund strait between Denmark and Sweden if needed. While primarily an anti-ship battery, the swiveling turret could be used to cover the coast, in case of an amphibious attack.

Firing direction was by means of a primary radar station on site, which is still in use, complemented by five other stations along the coast. The shells were loaded with an elevator from the bunker underneath. The guns were temporarily deactivated – but not dismantled – in the 1980s, when Stevnsfort assumed the role of main control and communication post for the southern district of the Danish Navy. Joint exercises with the military forces of the FRG were carried out also here in the final years of the Cold War.

By the entrance to the underground bunker you can spot several air hatches emerging from the ground, and an example of sea mine. The latter was the primary weapon to interdict traffic on the strait, with gun battery fire being mainly directed against enemy mine-sweepers.

Past the entrance, you need to descend a long stair into the bunker. At the base of the stair is an airlock with facilities for decontamination. The Stevnsfort bunker was most notably the first structure in Denmark to be built to withstand a nuclear attack.

The bunker is not excessively big, with about twenty reinforced-concrete-padded rooms connected by tunnels carved in the rock.

One of the highlights of this installation is the communication bunker, operative since 1984 in an area formerly hosting a hospital, then shut down when the naval batteries were deactivated. This used to be a highly inaccessible facility during the Cold War. Thanks to a careful preservation, the room looks like it was still in use! Batteries of telex and other communication machines originally in place, monitors and modern imaging technology from the Eighties, together with examples of ciphered messages are all on display.

Next to the communication room, the operation room is even more impressive. Similar to the former, it was constantly manned, and totally inaccessible for non-authorized personnel. The radar monitors can be seen towering over the consoles! Military staff on duty identified and followed all marine traffic in the assigned district, both civilian and military, friends and potential enemies.

Catalogs of existing ships are on display. Several thousands ships were identified and observed from this facility in the days of operation. It is reported that patrol ships from the USSR approached the coast under surveillance about 30 times per year, tasked with familiarizing troops with local geography…

Another highlight of the visit is the ammo storage for the gun battery previously visited. In the storage, explosive cartridges are placed separately from the shells themselves. There were four types of shells, recognized through a color code – grey for armor-piercing, orange for explosive, green for illuminating and blue for inert.

The almost-100 pounds cartridges were loaded on an elevator, and lifted up to the battery. A ladder provided direct access from the bunker to the cannons, serving also as an emergency exit.

Other rooms you can visit are sleeping quarters for the 250 men which stationed inside the bunker, until the guns were deactivated in 1981. The fort was capable of sustaining prolonged isolation in case of crisis or war. During the Cuban missile crisis, the Stevnsfort bunker was put on maximum alert for a week, with all men living underground, all accesses sealed.

Getting there and moving around

The Cold War Museum Stevnsfort is an international-level museum, to be found 1 hour driving south of central Copenhagen. The official website with directions and opening times is here. Visiting inside the gun battery and the bunker is possible only on a guided tour, where you are given an audio guide in English (also German and possibly other languages) if you can’t follow the Danish-speaking human guide. The guided tour includes also a visit of the missile battery, but this part can be toured also on your own. The guided visit lasts about 1.5 hours, and may turn a little boring in some parts (as usual, the human guide speaks longer than your audio-guide), but it is needed to get access to the most unique parts of the museum. I suggest visiting relatively early in the day, allowing some spare time after the guided tour and before closure to tour the missile part on your own. Free parking ahead of the installation, nice military-themed shop.

Cold War Museum Langelandsfort

This museum has been opened on the premises of a former naval gun installation from the same years of Stevnsfort (see above). Located on the southern island of Langeland, at the inlet of the Belt channel giving access to the Kattegat from the Baltic, it was in a good position to monitor all marine traffic in its sector, as well as for blocking the channel. As a matter of fact, similarly to Stevnsfort, the main target of the naval guns here were minesweepers, for the channel was completely covered with Danish remotely-controlled sea mines, and action of enemy minesweepers would have been necessary before any attack by the bulk of navy forces.

The main naval force in Langelandsfort was constituted of four naval guns, mounted on swiveling turrets, and a fire control bunker which in non-crisis time was used to keep trace of all marine traffic in the sector. The fort was complemented with anti-aircraft defensive positions, a bunkerized power station, and ‘softer buildings’, including barracks. Except for the latter, everything has been restored and can be visited. One of the naval batteries has been restored completely to its original form including the mechanisms underneath, whereas at the base of the other three batteries you can find exhibitions about various aspects of the Cold War – they are all pretty well studied, rich and interesting.

The command bunker is the first construction you meet. The building is from the 1950s, and it shares many aspects with Stevnsfort, though this is much smaller. You can see sleeping quarters and a kitchen, which would be used especially in case the fort was sealed, i.e. in case of high alert or war.

The control rooms are three. Two are for tracking marine traffic in the marine district of the Belt, and also for coordinating air operations from other military installations in Denmark. A radar antenna and an observation tower outside, likely complemented by similar gear in the area, provided a complete real-time picture of the civilian and military traffic in the sector. It is reported that ships going to Cuba with SS-4 nuclear missiles and related supplies were spotted in these rooms months before that material was photographed by the US, when the crisis broke out.

The third control room is the fire control room for the whole fort, coordinating fire from all four gun batteries. Fire control was by means of a very interesting piece of machinery, a fully mechanical computer, taking in atmospheric data like temperature, humidity, wind direction and speed, and target data. No electricity was needed except for lighting the goggles of this analog computer! A similar item was present in Stevnsfort, but I could not see it during my guided visit.

In an adjoining room you can see a perfectly restored communication facility, with ciphered messages hanging on the walls, as well as original transmission machines and early computers. There is also a personal study room for the commander of the post.

Besides the control bunker you can find an anti-aircraft position, centered on a four-barreled anti-aircraft gun. Similar to all others, the small bunker underneath could be manned and sealed in case of war.

The cannon battery closest to the control bunker has been restored completely, including the bunker underneath. The 150 mm guns, one per battery, were made in the final years of WWII by Skoda works in Plzen, in the then-Nazi occupied territory of Czechia. They were originally intended by the Wehrmacht for the Atlantic Wall in Denmark, but they never became operative there. Instead, they ended up to be installed by Denmark to counter a Soviet threat on the Baltic.

The mechanism for supplying cartridges to the cannon is similar to that in Stevnsfort, with an elevator lifting the explosive charge and the shell separately to the level of the gun. However, here the storage bunker is just beneath the cannon, and the lift does not carry the cartridge directly inside the turret, but to a hatch in the reinforced wall besides the cannon – something similar to some of the smaller cannon batteries of the Atlantic Wall built by the Germans.

Inside the bunker you can see the ammo storage, as well as a sleeping compartment for the 15-men crew needed to operate the cannon.

Some example shells have been preserved, with colors corresponding to different functions of the shell (see Stevnsfort above).

The cartridge elevator room is very small, and access is from both sides. Explosive and shell came from opposite directions, each from the corresponding storage room.

The bunker under the next cannon battery has been dedicated to the analysis of the threat from the Danish perspective. Here you see copies of the Soviet plans to invade Denmark, as part of an operation to conquer central and northern Europe lightning-fast in case of an open war against the West. Among the most striking items, you can see detailed Soviet maps covering all regions of Denmark – with city names and all writing in Cyrillic!

There is also a nice collection of ordinary weapons and military supply from the Eastern Bloc, and especially from the neighboring German Democratic Republic. A very special feature is an example of the ‘Blücher decoration for valor’, a medal created by the GDR to be attributed to individuals for actions of exceptional courage in the defense of the GDR, and to be assigned only in case of war – thanks to the Cold War never turning ‘hot’ for the GDR, nobody could be awarded this decoration.

The next battery is dedicated to espionage and spy gear, with many examples of James-Bond-like trinkets, actually used by both enemy and Danish spies. Machinery for ciphered communication, once considered hi-tech, is also on display, together with maps used by a Danish spy visiting the Polish coast, and satellite imagery of East German/Soviet airbases.

The exhibition in the last battery is about the Cold War and society, and is full of old photographs of pro-Soviet protesters in Denmark, spies, famous characters of the Cold War, momentous events taking place in Denmark during the Cold War and so on. Most notably, there are also many artifacts from both Denmark, the Eastern Bloc and the USSR, including medals, posters, portraits and much more.

Similar to the control bunker, the power station has been preserved in its original condition. Three diesel engines could provide power to all bunkers in case of war or failure of the grid for whatever reason. Immediately outside the entrance to the power station bunker there are apparently some suspended showers…

The large area of Langelandsfort has been selected also for the exhibition of a submarine, a mine-sweeper and two aircraft! The submarine ‘Springeren’ was used by Denmark in the 1990s and early 2000s, but it was built much earlier and operated by the Norwegian Navy. Sadly, after the retirement of ‘Springeren’, the Danish Navy shut off completely its underwater branch. The ship is a small conventionally powered attack submarine. The interior is apparently pretty modern with respect to older German or US WWII U-boats.

The submarine features six torpedo tubes.

The mine-sweeper has the appearance of a small conventional boat, but with room for a crew of several men. It is hosted in a hangar together with examples of sea mines – apparently US models.

The two aircraft are a SAAB Draken of Denmark and a MiG-23 of Poland. They represent some of the most advanced aircraft of these opposing countries at the height of the Cold War. Both exemplars are well preserved inside hangars protecting them from the weather and sunlight.

Another interesting sight is a reconstruction of a civil defense bunker, with much original material, including packs of ration cards already prepared for the population in case of war. In an adjoining room you can see a reconstruction of a bunkerized broadcasting studio – the national TV channels were tasked with providing updates to the population in case of an attack, hence a similar facility was prepared in the basement of the TV headquarters.

Close to the ticket office, you are offered a very well-designed exhibition tracing the timeline of the Cold War, with some clever text and many pictures, some of which rather uncommon – really worth spending some time on, before or after visiting the museum.

There is also room for temporary exhibitions, in a hangar which includes an original section of the Berlin Wall.

The building of the ticket office is also interesting. From the back of it you can get access to a smaller exhibition about travels to the DDR (the native acronym for the GDR), with everyday items, old Interflug boarding passes, and some incredible postcards – apparently, modern Soviet-style housing and heads of Marx were the items that GDR postcard-designers liked most… Fragments of the Berlin Wall are also on display.

Ahead of the entrance there is an old and pretty big hammer and sickle, originally from a Soviet ship. The commander threw it outboard when the Soviet Union officially ceased to exist. It was collected by a Danish sailor and ended up here. Nearby you can see a reconstruction of the Berlin Wall, and an original Trabant crossing it.

Getting there and moving around

The Cold War Museum Langelandsfort is located close to the southern tip of the island of Langeland, which is connected with bridges to the major island of Fyn, where Odense can be found about 1-hour north of the museum by car. You can move around the museum on your own, there are several panels with explanations. Most panels have at least a quick translation in German and English. All presentations are very well designed and maintained. Visiting may take at least 2 hours for an interested subject, and even more especially if you are taking pictures. Free parking ahead of the entrance, and picnic area nearby. Official website here.

Aalborg Defense and Garrison Museum

This museum was opened in the year 2002, in the hangar of a seaplane base constituted by the occupying German forces in 1940. The base was potentiated in more instances during WWII, and a half-interred command bunker similar to those of the Atlantic Wall was added.

Aalborg has been a military post for centuries, therefore the museum is centered on several aspects of war and military life. Of course, the majority of the artifacts on display date from WWII and the Cold War period.

The hangar hosts a small collection of aircraft, which capture your sight when you get in. Most notably, there are a venerable F-84, an F-86, and somewhat older T-33 and Gloster Meteor.

Close by, you can find a more modern F-104. Jet engines of American make from some of these aircraft have been taken out of the airframes, and put on display separately.

Again in the center of the hangar you can see a Hawk missile system, including the missile battery and movable power and control trucks. Also anti-aircraft guns and searchlights from various ages are on display.

Items from WWII include a nice exhibition of locally-collected gear used by the Danish resistance movements. Supplied by the Allies from the air, they managed to build several types of bombs, mines, and so on, made to disturb and damage enemy transports, or to kill enemy staff in well programmed para-military actions.

Memorabilia include the engine of an US B-17 bomber, sadly downed over the Baltic during the crew’s final mission, the original Luftwaffe eagle once standing on the building of the local German air command, and a Nazi flag weaving on some public building in town in the years of the German occupation.

There are also many photographs from the area from the war years, and reproductions of German maps and local newspapers. The latter tell about relevant facts taking place during the war, as reported by the local media. There are also diplomas of merit issued by the US and Britain in favor of a local citizen, member of the resistance.

A part of the exhibition is about civil defense. Similar to the US, Britain and other countries during the Cold War, this service was activated to prepare the population to a nuclear war scenario, and to provide shelter and a chance of survival, by means of bunkers and deposits of supplies. Here you can see a reconstruction of such a shelter, and items which used to be stored in preparation for survival in the nuclear winter.

There is also a nice collection of light weapons from local firms, uniforms and communication rigs.

A few uniforms and technical gear from the current supplies of the Danish military are on display as well.

In a room to the side of the central hall, you can find uniforms dating from WWII, including German stuff. The story of a Dane coming to the US and fighting for the US Army is also told in a corner, also through some memorabilia.

On an elevated platform you can find an exhibition about the Cold War. This is mostly made by panels retracing the history of that confrontation over the decades. Among the most peculiar items on display, a copy of the invasion plan studied by the Soviet in case of a sudden war with the West. That plan included the rapid conquer of Denmark, due to its strategically relevant position. A copy of a Soviet-made map of Aalborg in Russian, needed in case of war, is another example of the unique artifacts on display.

This special Cold War exhibition is completed with a set of field and anti-aircraft weapons from various ages of the confrontation.

Other rooms around the main hall display modern uniforms, NATO-related material, military supply from various ages and even a throne used by the Queen of Denmark on an official visit.

In an adjoining smaller hangar you can find a rich collection of trucks and weapons with various – not only military – functions.

Outside, a highlight of the museum is the former air command bunker built by the Germans. This has been filled with memorabilia from the Nazi occupation period. An unusual and little-known story is told here, about the German refugees from Eastern Prussia, a region loosely coincident today with the part of Russia around the town of Kaliningrad (ex-Konigsberg). This area used to be part of Germany since before WWI, and it remained under the Weimar Republic, even though separated from German mainland. Neighboring Lithuania was annexed to the Third Reich before WWII – similar to Sudetenland – on account of the proximity to that region, with the excuse of a significant German group living in Lithuania. In 1939 the Germans re-gained control over northern Poland, and the two regions of Prussia were reunited in the Reich.

Following the victories of the Soviets in 1944 and the ensuing landslide-march towards Berlin, Eastern Prussia was lost to the enemy. Refugees escaped to mainland Germany, and the administration of the Reich sent these folks in several areas relatively far from the front – including a significant number to occupied Denmark, and especially in the hangars in Aalborg, where the museum is today. So the hangar acted as a hospitality center for the refugees. This was something strange though, for the refugees were not local nationals, but instead enemies. This led to a controversy soon after, when the war ended. In the event, most of the refugees returned to their land of origin, only to find it permanently occupied by the Soviets. Some handmade artifacts of these German refugees can be seen on display in the bunker.

Finally, a very good collection of tanks, field guns and movable howitzers from various countries including the Eastern Bloc and mainly from the various ages of the Cold War can be admired on the museum apron. For the most part, these are reportedly kept in working condition.

Getting there and moving around

The museum is located close to central Aalborg, on the waterfront. You can visit it totally on your own. Some of the exhibitions are described in more languages, but some parts are in Danish only. Nonetheless, the visit can be very rewarding for experts and for the kids as well, thanks to the chance to touch many of the artifacts on display. A two-hours time may be enough for having a look, more time is required for a more in-depth visit or if you want to take pictures.

Convenient parking just ahead of the entrance. Website with full information here.

Danish Museum of Flight

This fantastic collection of aircraft can be found next to Stauning Airport, on the west coast of Jutland, at the level of the Ringkobing firth. This is by far the largest aircraft collection in Denmark, and the reference air museum in this country.

The exhibition is well designed and rich, and it covers both the civil and military branches of aviation. Furthermore, a good half of the aircraft appear in fully airworthy conditions.

There are three thematic hangars. In the first you can find civilian aircraft from various ages, smaller sport aircraft and military trainers mainly from the inter-war period or the late 1940s. Some of them appear airworthy.

Most notably, there is the front part of the fuselage of a Douglas DC-7, formerly in service with the national carrier SAS, still on business today. The cockpit and the crew compartment are well preserved. The analog instrumentation adopted on this plane, which dates from 1957 and represents the last and most advanced of the Douglas propliners, is abundant and remarkably sophisticated.

Another unique aircraft on display is an Aerospatiale Corvette, an executive jet by the same French airframer who participated in the Concorde project. You can also board the plane.

Similarly rare today is the DeHavilland Dove, a British-made short range liner from the early Cold War period. Similar aircraft, cheap to operate, went on flying well into the 1970s in many countries. Here you see an exemplar in the colors of Cimber Air.

Among the trainers, you can find a DeHavilland Tiger Moth and a Chipmunk from the same manufacturer. Less common aircraft include a DeHavilland Hornet Moth, which apparently spent most of its flying time in Kuala Lumpur, and a nice Bucker Bestmann, a German trainer adopted and license-built also in Sweden.

Despite never adopted by the Danish military, a V-tailed Fouga Magister French trainer apparently found its way to here. It was reportedly flown in private hands by a Danish professor, before being donated to the museum.

In the first hangar are also examples of Danish aircraft production, including the reconstruction of an early prototype by a local pioneer. Propellers and dismounted engines and systems, likely used for training purposes in the past, are an interesting part of the exhibition too.

A huge collection of model engines, some air traffic control consoles and airport trucks complete the exhibition in the first hangar.

The second hangar is mainly devoted to aircraft manufactured in Denmark. Most notably, the Skandinavisk Aero Industri – abbreviated in SAI – specialized in trainers and small transport in the inter-war and WWII period, and knew a good national and local international success between 1937 and 1954, when it disappeared – and with it basically also the Danish aeronautical industry.

Some of the aircraft on display are unique exemplars, the last witnesses of this interesting story. Not all aircraft here are from this manufacturer though – an ubiquitous Piper Cub in its distinctive yellow colorway can be found as well, together with a Supermarine Spitfire. Also here, most aircraft appear to be in airworthy conditions.

In the last hangar, which despite being the largest one, is the most crumpled, you can find military aircraft retracing the history of the Danish Air Force supply. The aircraft here are all from the Cold War period, hence giving to this hangar a historical connotation. This part of the exhibition is also particularly nice, as you can walk close and beneath the aircraft, an ideal setting for getting pictures of smaller particular features.

The variety of present aircraft is very interesting, and reflects the close bounds of Denmark with the US and Britain. Aircraft from the early Cold War include Lockheed T-33, a North American F-86, and two different versions of the Republic F-84.

An exemplar of the latter is supplemented with JATO – Jet Assisted Take-Off – bottles under the fuselage. The mountings of the underwing rockets on the F-84 and of the belly rockets on the F-86 are really unique examples of Cold War technology!

A big Consolidated Catalina amphibious aircraft towers on all others in the hall, while a Douglas C-47 transport in excellent conditions is preserved in a corner, with an interesting ski system mounted on the landing gears.

British aircraft from the same early era include a Gloster Meteor and what appears to be a pretty rare Fairey Firefly. Another US design is a T-6 trainer, to be found under the wing of the Catalina.

More recent designs still from the Cold War include a Lockheed F-104, a British Hawker Hunter and a Swedish SAAB Draken.

Especially the configuration of the latter – both the general configuration and the arrangement of the landing gear and wing pylons – is really unique, reflecting a different yet interesting school of aircraft design.

Rather uncommon out of the US, a North American F-100 Super Sabre is also on display, with a foldable Pitot boom.

Finally there are a Hawk missile battery, a movable command center and service trucks.

Modern aircraft are represented here by an F-16. There are also two helicopters of US make, closing the collection.

Getting there and moving around

The museum is located between Stauning and Velling, two small villages on the inner coast of the Ringkobing firth, western Jutland. The facility is modern, with a large free parking and a picnic area. It is located on the border of a local airport, immersed in nature – a very pleasant location. The museum requires about 2 hours for an interested subject, 2.5 if you want to take pictures. Website with full information here.

Air Museums in the Former GDR

Due to its strategic relevance to the Soviet empire in the years of the Cold War, the territory of the former German Democratic Republic, or ‘GDR’, experienced an uncommonly intense military presence, growing over the years from soon after WWII to the end of the Soviet Union and the retreat of Russian troops to their home Country.

The coexisting armies of Eastern Germany and of the Soviet Union each managed land, sea and air groups operating from the GDR. As a result, still today the countryside of the former communist-ruled part of Germany is full of airports – many of them abandoned or converted to solar powerplants – and former tank training camps.

Besides this hardware, leaving clear traces reaching to this day, the quick collapse of the Soviet system and the end of the Cold War generated an enormous quantity of military surplus at all levels in the mid-Nineties.

In particular, soon after reunification the People’s Air Force of Eastern Germany was merged with the West-German ‘Luftwaffe’, whose name was retained and which became the German Air Force still operating today. The result of the merger was not ideal from a logistic and supply chain point of view, with too many aircraft and helicopters with radically different designs – implying different spare parts, maintenance procedures, specialized training, … Consequently, all Soviet models, which had been the backbone of the East German forces, were soon stricken-off the military register, many of them going to private collections.

For this reason, you can often find former GDR aircraft in museums all over Europe. Clearly, many of them remained in the territory of their bygone mother Country, enriching local air collections and museums. This post is about four less-known gems of the kind close to Berlin and Leipzig. These photographs were taken during visits in 2017 and 2021.

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Flugplatzmuseum Cottbus

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This collection is located on the outskirts of the town of Cottbus, easily reachable about 70 miles southeast of Berlin. The premises occupied by this mainly open-air museum are to the south of the former local airport/base which was more recently converted into another solar plant. Actually, a hangar from here dating from WWII was dismounted and relocated to the state of Virginia.

The collection here is very rich, the majority of aircraft are kept in a well-maintained, non-flying condition, with a pretty large area devoted to aircraft restoration, and a well prepared and perfectly presented inside part with memorabilia, artifacts, aircraft parts, models, … – all in all, a primary attraction of the kind, well worth visiting for any aviation enthusiasts.

By passing the gates you will walk between a part of an Airbus A380 used for testing – a bit of an outlier for a military museum… – and an array of MiG-21, MiG-23 and MiG-27 formerly in service with the air force of the GDR.

The display of these aircraft side by side, the MiG-21s also in multiple different variants, is very interesting for making comparisons and spot both obvious and less evident differences between these iconic Soviet models.

A more rare, recently restored MiG-17 is proudly standing in front of the entrance to the main building of the museum.

Other highlights of the collection include two Sukhoi Su-22 aircraft. One of them bears markings of the Luftwaffe, suggesting it was used for some time in the air force of reunified Germany. The difference in size between the two massive Sukhois and the sleek MiGs is apparent having them sitting close to each other!

On the grass closer to the former runway are some Soviet helicopters, including a very well-preserved Mil-24 attack helicopter, also in Luftwaffe colors.

Close by, a couple of other MiGs in a bare metal colorway – one of them from Tschekoslowakia – can be spotted, together with some old western models, in the original colors of the Luftwaffe – these include an F-84, F-86, T-33 and a rare Italian G-91.

Other less aggressive aircraft in the area include a Let L-200 twin-propeller aircraft possibly for training, a Yakovlev Yak-11 acrobatic aircraft and some other aircraft for training, observation or crop dusting.

A full array of service trucks from various Soviet manufacturers are aligned in an open hangar, where a Soviet anti-aircraft SA-2 missile with its light launch gantry is also present.

The inside collection – not the usual dirty-and-dusty collection typical of wannabe air-museums, but instead a clean and well-presented, good-level small museum in itself – shows something on the local history of the former airport, various jettisonable seats from Soviet aircraft from different times, technical schemes for maintenance and training, as well as local findings of aeronautical interest. Among the latter, some pretty rare parts of downed aircraft from WWII, both from Nazi Germany and from the Allies – including the Soviet Union.

Also interesting was a temporary exhibition about the MiG-21 and its world-class success. The only thing I regret about the inside part is that all explanations were given in German only.

Some very interesting findings on the outside include a largely complete wreck of a Focke-Wulf FW190, what appears to be a bulky Napier Sabre II 24-cylinders engine, possibly from a Hawker Tempest or typhoon, a MiG-15 awaiting restoration, plus other engines and aircraft parts.

I would recommend this place for a dedicated visit about 1,5-2 hours long, especially if you are touring the area south of Berlin, very rich in terms of recent and past military history.

Getting there

Cottbus can be reached quickly by train from Berlin, but the museum is far from the town center. Going by car is definitely more convenient, a very fast highway going to the border with Poland – a few miles away – connecting Berlin and Cottbus in about 1 hour. Contact and information from their official website (in German, but basic info on opening times and location can be obtained very easily with some Google translation). Small parking nearby.

Luftfahrtmuseum Finowfurt

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The Luftfahrtmuseum – i.e. aviation museum – in Finowfurt has taken over a part of the former Soviet airbase of Finow, about 35 miles northeast of Berlin. Over the last two decades of the Cold War, this airbase was pretty busy with high-performance Soviet MiGs, ranging from the older MiG-21 fighter-interceptor, the ubiquitous MiG-23 fighter, the rare super-fast MiG-25 interceptor, and up to the modern MiG-29.

Finow received a plethora of aircraft shelters, including the older AU-13 for MiG-21 and -23, but also AU-16(2) and AU-16(3), the former intended for the Yak-28 and MiG-25, the latter for the MiG-29. The picture below portray the relatively rare AU-16(2), with its non-circular vault, in the still-active part of the airport in Finowfurt, today a general aviation field.

The museum, encompassing the northwestern corner of the former military premises, offers the chance to walk close and inside AU-13 shelters, with their heavy reinforced doors, self-actuated by means of motors mounted close to their own bodies, and moving on a rail.

Parked ahead of a group of such shelters, a MiG-21 and a MiG-23 make for a scenario closely resembling the days of operation of this former Soviet installation. The shelters are interspersed with former technical gear from the base, including searchlights of evident Soviet make – see the writings in Cyrillic.

A spherical dome on top of one of the shelters may have been the case for a rotating aerial.

An Ilyushin Il-14 old two-engined transport and a Yakovlev Yak-28 bomber sit on the opposite sides of a former taxiway, typically built with large concrete slabs.

To the far end of the museum area, a low building, possibly a former canteen or technical facility, hosts a nice collection of artifacts, which tell much about the history of Finow over the years. For instance, during the Third Reich, this airbase was involved in testing the Allied aircraft landed in emergency on German territory – models of B-17 and B-24 in the unusual colors of the Luftwaffe witness this episode.

Of course, most of the material on display is from Soviet times. An original schematic of the base, and old signs in Russian – both propaganda posters and more technical explanations – are included in this collection.

Also a few naive paintings from Soviet times have been preserved.

An interesting collection of Soviet technical gear includes aircraft cameras for optical imagery, helmets, flying suits, as well as weapons partly dismantled possibly for instructional purposes.

Ahead of the small museum building, a statue of Lenin can be found, possibly relocated from another spot of the former Soviet base.

On a spot nearby, anti-aircraft and theater missiles can be found together with ranging aerials – as well as an ubiquitous Antonov An-2 transport biplane.

An imposing sight in the museum is a freshly refurbished Tupolev Tu-134, in the colors of the East German flag-carrier Interflug. It was not the case on the day of my visit, but it is likely the aircraft can be boarded on some occasions. Nearby, also a large Mil helicopter – a former transport – can be found ahead of yet another aircraft shelter.

On display in the latter are some aircraft jet engines, as well as some communications rigs, and some explanatory panels, likely from a former technical school for air personnel.

A particularly interesting collection is hosted in an adjoining shelter, wisely converted for the scope. It is based on relics from crashed aircraft, from the years of WWII. A very active group of aviation archaeologists operates in Finow, and this fantastic display is the result of their preservation effort.

Artifacts range from engine parts to aircraft components from all the air forces involved in WWII, and include substantial remains from the wrecks of a Soviet Ilyushin Il-2 Sturmovik, and a German Föcke-Wulf FW-190, a high-performing fighter manufactured in great numbers, but today sadly very hard to find even in museums.

Finally, closer to the former runway, two shelters cover a few helicopters, including some formerly in service with the Volkspolizei – the police of the GDR – as well as a MiG-15 with two seats for training, and a MiG-21.

Outside on the grass, a MiG-27 fighter bomber and a MiG-17, both in the colors of the GDR Air Force (aka NVA).

Approaching the exit, a deployable aircraft-stopping harness for emergencies can be seen, close to a movable SAM launcher from the NVA, and a massive Sukhoi Su-22 similarly in the colors of the NVA, like those to be found in Cottbus (see above).

The ticket office of the museum is hosted in a former technical facility with reinforced doors, possibly a storage for special ordnance.

Thanks to the proximity with Berlin and the wealth of interesting artifacts, this museum is a highly valuable Soviet counterpart to the Westwardly-oriented museum in Gatow (on a former British airfield near Potsdam, website here). Besides a rich collection of aircraft and technical gear, complemented by a display of interesting findings from the aviation archaeology group, Finow allows to get a flavor of how a Soviet base looked like in the days of operation. For aircraft enthusiasts, a visit may easily take 2 hours or more.

Getting there

The museum is conveniently located in Finowfurt, immediately out of the highway A11 (exit Eberswalde), going from Berlin to Szczecin in northern Poland. It is less than 1 hour driving from downtown Berlin. The museum is mostly open-air, with some collections hosted in former aircraft shelters. A large free parking is available on site. Website here. Please note that credit card may not be accepted. Going with cash is recommended.

Luftfahrttechnisches Museum Rechlin

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The museum of Rechlin can be found in the former premises of an Army research center dating from the years of the Third Reich. It is located in the open countryside, about 80 km north of Berlin, in the vicinity of lake Müritz. Following the Soviet occupation of the area in 1945, the center went on as a technical site of the Red Army.

The museum has restored the original buildings, and set up an exhibition mainly focused on the history of German military aeronautics. The exhibition is both indoor and outdoor.

The indoor part has on display a number of German aircraft, aircraft engines and several related parts, mainly from pre-WWII or WWII. A highlight of the show is a number of reconstructed exemplars, created putting together original parts and some reproduced components. Of course, the result is now airworthy, but considering how hard to find these aircraft are today in collections, this is a rare opportunity to have a first-hand look at how these models looked like.

A very interesting collection of original engines and components from the Third Reich period is on display. The level of engineering sophistication reached in the years of WWII is really astonishing. It was at that time that piston power reached its top development in aeronautics. Furthermore, the first jet engines entering production date from the final stages of WWII too, and are here represented.

Another hangar is mostly dedicated to large 1:1 mock-ups of extremely rare German designs from WWI and WWII, including a Dornier Do-335 in a push-pull configuration, which have been accurately assembled, providing a vivid portrait of how these now very rare-to-find aircraft.

Other exhibits include Soviet-made aircraft, partly dismounted for didactic purposes.

In another wing, the museum displays a rich exhibition of original artifacts from the era of Soviet occupation. These include many aircraft components, jettisonable seats, helmets, several radio components, papers and pictures.

Simulators for aircraft and helicopter cockpits are also part of the display.

Memorabilia include everyday items, Soviet newspapers, badges and celebration plates. The page of a German newspaper, from the date of the final withdrawal of then-Russian troops back home from Germany, titles ‘Farewell, Muzhiks!’ – really a momentous event.

In an adjoining room, uniforms and emblems from both the USSR forces and the East-German NVA can be found in display cases.

The outdoor exhibition is centered on a few original aircraft and helicopters, as well as fast motorboats and other vehicles. Aircraft include a MiG-21, MiG-23, and a massive Sukhoi Su-22.

As for helicopters, there are a Mil-2, Mil-24 and a Mil-8 – all Soviet-made. The latter two have the main rotor blades still dismounted.

The research center, and today the museum, is located just about 5 km north of Rechlin/Lärz airfield, active in the Third Reich in aeronautical research – Messerschmitt Me-163 Komet rocket-powered interceptors were studied here. The airfield became a large Soviet base from 1945 to the time when the then-Russian troops left. Today the airport has been converted for general aviation use. A report from an exploration of its premises can be found here.

Getting there

This is a proportionate collection, friendly to visit for everybody, in a nice rural setting. Memories from the history of aviation in Germany before and during WWII, as well as from Soviet operations taking place in the area – an often overlooked but crucial chapter in the military history of the GDR. The exact address is Am Claassee 1, 17248 Rechlin, Germany. Official website here. Visiting may require 45 minutes to 1.5 hours.

Flugwelt Altenburg/Nobitz

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Similarly to the museum in Cottbus and Finowfurt, this collection – whose name ‘Flugwelt’ translates into ‘World of Flight’ – is built on the premises of a former airbase – Altenburg/Nobitz, 20 miles south of Leipzig. Actually this was a very active center, managed by the Soviets who operated from here in the years of the Cold War with MiG-21, 23 and 27, and was also one of those sites in the GDR selected for nuclear weapons storage. Tactical missiles batteries were located also here in response to the deployment of Pershing missiles by the US on the territory of Western Germany. in the Eighties.

The airbase has been converted to non-military use, and today it is active mainly with general aviation flights. Some former hangars are used by private companies.

The air museum is made of two physically separated parts. The main building with the ticket office is the former entrance to the Soviet airbase. Here an incredible, original mural from Soviet times is still gracing the wall, together with a map of the airfield, again from Soviet times. From there you access the inside exhibition, cluttered with aircraft parts, engines, flight suits,… Not everything from the Soviet part of the Iron Curtain though, as uniforms and parts from Western Germany and other non-communist Countries can be spotted.

Among the most interesting artifacts in the exhibition, a large explanatory scheme of a servo-actuation plant of an aircraft, with explanations in cyrillic alphabet, and a simulator for a radar mounted inside the MiG-21. Both really used training items, very uncommon to find.

A part of an A380, two gliders, some Interflug memorabilia – the flagship airline of the GDR – and tons of models and radio-transmission hardware complete the picture. Unfortunately, also here everything is in German only. The volunteers are welcoming and helpful, but unfortunately communication is not easy due to language issues.

In a first part of the open-air exhibition it is possible to find a couple of MiG-21, one East-German and the other Soviet, a helicopter of the Police of the GDR, plus other aircraft from the West-German Luftwaffe, namely a Dassault Atlantique patrol, a G-91 and an F-86.

The two MiGs have been carefully restored, and the Red Army one appears to have been a former gate guardian at Altenburg/Nobitz.

Another part of the open-air collection can be found across the street, where a big Transall C-160 a Lockheed F-104 and a Sukhoi Su-22 can be spotted. The area is big and there is room for more aircraft – hopefully, this good-caring staff will have the chance to add even more items to their well-preserved collection in the future!

Curiously enough, the area was liberated from the Nazis by US troops in 1945, and handed over to the Soviets only after the end of WWII. A memorial stone remembers the actions of the US divisions fighting in the area in wartime.

Not time-expensive to visit (about 45 minutes to 1 hour for aircraft-minded people), besides a valuable aircraft collection and some rare artifacts of interest for aviation enthusiasts, this places offers the unique chance to enter a preserved gate building of a former Soviet airbase.

Getting there

The airport is located about two miles east of the nice historical town of Altenburg, itself about 30 minutes southeast of Leipzig. I would recommend going with a car and a good nav, for reaching the exact location of the museum may be a bit tricky with visual navigation. Website here, with some basic info also in English. The place is run by volunteers and it’s closed except during weekends in the good season, so carefully check opening times.