DKM Type VII U-Boat

Jun 13 2018 - 21:56 UTC by SneakyPete
Edited Jun 23 2018 - 18:30 UTC by SneakyPete
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Small - 120° Broadsides (center)
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Type VIIA U-boats were designed in 1933–34 as the first series of a new generation of attack U-boats.[7] Most Type VIIA U-boats were constructed at Deschimag AG Weser in Bremen with the exception of U-33 through U-36, which were built at Friedrich Krupp Germaniawerft, Kiel. Despite the highly cramped living quarters, type VIIA U-boats were generally popular with their crews because of their fast crash dive speed, which was thought to give them more protection from enemy attacks than bigger, more sluggish types. Also, the smaller boat's lower endurance meant patrols were shorter. They were much more powerful than the smaller Type II U-boats they replaced, with four bow and one external stern torpedo tubes. Usually carrying 11 torpedoes on board, they were very agile on the surface and mounted the 8.8 centimeters (3.5 in) quick-firing deck gun with about 220 rounds.The boat was powered on the surface by two MAN AG, 6 cylinder 4-stroke M6V 40/46 diesel engines giving a total of 2,100 to 2,310 brake horsepower (1,570 to 1,720 kW) at 470 to 485 rpm. When submerged it was propelled by two Brown, Boveri & Cie (BBC) GG UB 720/8 double-acting electric motors giving a total of 750 horsepower (560 kW) at 322 rpm.The VIIA had limited fuel capacity, so 24 Type VIIB boats were built between 1936 and 1940 with an additional 33 tonnes of fuel in external saddle tanks which added another 2,500 nautical miles (4,600 km; 2,900 mi) of range at 10 knots (19 km/h; 12 mph) surfaced.[8] More powerful engines made them slightly faster than the VIIA. They had two rudders for greater agility. The torpedo armament was improved by moving the aft tube to the inside of the boat. Now an additional aft torpedo could be carried below the deck plating of the aft torpedo room (which also served as the electric motor room) and two watertight compartments under the upper deck could hold two additional torpedoes giving it a total of 14 torpedoes. The only exception was U-83, which lacked a stern tube and carried only 12 torpedoes.WWII Armada notes:Speed surfaced 2, submerged 1Scatter 3 only when submerged, Scatter 2 at periscope depth, Scatter 1 surfaced.Infiltrate setup rulesOne red die for AA when surfaced.One Blue die for Fwd gun surfaced.

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