The electric motor was the AEG GU 4463/8, which was a simplified version of the electric motors employed on the Type VIIs.
#Xxi u boot generator
No reloads at sea could be carried out.įor the power plant, the Type XXIII used the MWM RS-348 diesel engine, which was already in use as a diesel generator aboard the Type IXDs. A barge could then load the torpedoes externally. In order for the torpedoes to be loaded, the boat had to be ballasted down at the stern, so that the bow was lifted clear of the water. In addition, the limited bow space meant that no spare torpedoes could be carried. Due to space restriction, the forward bow section had to be kept as short as possible, with the consequence that only two torpedo tubes could be carried. During transportation, the hull was broken into four sections and the bridge was removed before being loaded onto a rail car. In order for the boat to be transportable by rail, this meant that sectionalized parts of the hull were limited in size in order to fit into the standard rail car compartment.
The aft pressure hull was cylindrical in shape which also housed the fuel tanks and ballast tanks. As in the Type XXI, the lower section was used to house a large 62-cell battery. The cross section of the forward pressure hull resembled the form of a figure of eight. The Type XXIII was propelled by a single three-bladed propeller and steered by a single rudder with the tail of the submarine tapered off to a knife-edge. Inline with Walter’s design, there was no forward hydroplanes, although this was added later.
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It had a full streamlined outer hull and apart from the relatively small bridge and a hump on its back which housed the diesel exhaust silencer, there was a complete absence of clutter on the upper deck. The Type XXIII had an all welded single hull design, and was the first submarine in the world to use a single hull design. Of the 280 submarines ordered, only 61 had entered service, of which only six had ever carried out a war patrol. The first Type XXIII to roll off the assembly line was U-2321 – launched on Apand commissioned on June 12 1944. Many disruptions were caused by Allied land advances, constant aerial bombings, material and manpower shortages.
The lead contractor was Deutsche Werft in Hamburg.Īs with the Elektoboat, construction of this advanced submarine faced a logistical nightmare. By June 30 1943, the initial design was ready and construction began in parallel at several shipyards in Germany, France, Italy and German occupied USSR. Walter designed the new boat based on the previous Type XXII prototype. The development of the Type XXIII was given very high priority, with the emphasis on using existing well-tried components as much as possible. Donitz, however added two further requirements, which was the boat should have to operate in the Mediterranean and Black Sea theaters, which meant it had to be transportable by rail and it had to use the standard 21 inch torpedo tubes. When development of the Type XXI Elektroboat began in late 1942, a proposal was put forward to also develop a smaller cousin of the Elektroboat which would incorporate the same technological advances and was intended to replace the role of the Type II coastal boat. Click here now.īy 1941, except for six remaining Type II coastal boats operating in the Black Sea, all other Type II coastal boats had been withdrawn from operational service and relegated to training duties. For modelers, researchers, and u-boat fans. U-995 German Type VIIC U-Boat Illustrated GalleryĮxplore the last surviving German Type VIIC U-boat with over 600 Walkaround photos, videos, schematic plans, authentic sounds and a virtual tour. Y 880 (ex U 2540) it is open to the public.The Type XXIII coastal boat was one of the most advanced submarine designs of World War Two, although it success was overshadowed by its much larger cousin, the Type XXI Elektroboat. As “Technikmuseum Wilhelm Bauer ” Nato-Nr. Note : The former Kriegsmarine U-boat U 2540 is the only surviving U-boat of it´s type. The enhanced battery was installed in the lower part of the pressure hull. The pressure hull had a profile formed like an eight with an upper diameter of 5.3 m and a lower diameter of 3.5 m.
This type was called “Big Elelectric Boat”, a true submarine with a threefold battery capacity compared to standard U-boat types, a streamlined hull.
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