![]() ![]() ![]() Little experience in shipbuilding, following a decision by Albert Speer. ![]() One of the reasonsįor these shortcomings was that sections were made by companies having Required extensive post-production work to rectify. This new method could have pushedĬonstruction time below six months per vessel, but in practice all theĪssembled U-boats were plagued with severe quality problems that The Type XXIs also had better facilities than previous U-boat classes, including a freezer for food.īetween 19, 118 boats were assembled by Blohm & Voss of Hamburg, AG Weser of Bremen, and Schichau-Werke of Danzig.Įach hull was constructed from eight prefabricated sections with finalĪssembly at the shipyards. The class also featured a very sensitive passive sonar for the time, housed in the "chin" of the hull. The Type XXI could fire 18 torpedoes in under 20 minutes. They also featured an electric torpedo-reloading system that allowed all six bow torpedo tubes to be reloaded faster than a Type VIIC could reload one tube. The new hull design also reduced visibility by marine orĪirborne radar when surfaced whether this was a goal of the design or This often revealed aīoat's location, especially after aircraft became available for convoyĮscort. Older boats had to surface to sprint into position. Gave the boat a 'sprint ability' when positioning itself for an attack. The new hull form), made it far harder to chase and destroy. While submerged, combined with improved dive times (also a product of ![]() The Type XXI's streamlined and hydro-dynamically clean hull designĪllowed high submerged speed. The Type XXI was also far quieter than the VIIC, making it harder to detect when submerged. They could travel submerged atĪbout 5 knots (9.3 km/h 5.8 mph) for two or three days before recharging batteries, which took less than five hours using the Schnorchel. This gave these boats great underwater range, and dramatically reduced Streamlined hull and conning tower, and the large number of batteryĬells, roughly triple that of the Type VIIC. The key features of the Type XXI were the hydrodynamically They were the first submarines designed to operate primarily submerged, rather than as surface ships that could submerge as a means to escape detection or launch an attack. Type XXI U-boats, also known as " Elektroboote" (German: "electric boat"), were a class of German diesel-electric submarines designed and operated during the Second World War. From there she was sunk on 2 Jan, 1946 at 1030 hours in position 56.06N, 09.00W.Here are some images of Revell's 1/144 scale Type XXI U Boat with interior. On 1 Jan, 1946 she was taken to Moville, some 15 miles north of Lisahally. Operation Deadlight (post-war Allied operation, info) Trials were cancelled, and U-252 returned to Lisahally on 2 August 1945 for storage pending disposal. When docked, repairs were estimated at 4 to 6 weeks and required cutting out a section of the hull. Starboard main and auxiliary motors overheated and damaged by fire 23 July prior to entering dry dock. Selected for RN testing, but broke down en route to SW Scotland for trials. Surrendered on at Horten, Norway (Waller & Niestlé, 2010).Īrrived Lisahally, Northern Ireland 9 June ![]()
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