Concept

Type VII submarine

Summary
Type VII U-boats were the most common type of German World War II U-boat. 703 boats were built by the end of the war. The lone surviving example, , is on display at the Laboe Naval Memorial located in Laboe, Schleswig-Holstein, Germany. The Type VII was based on earlier German submarine designs going back to the World War I Type UB III and especially the cancelled Type UG. The type UG was designed through the Dutch dummy company NV Ingenieurskantoor voor Scheepsbouw Den Haag (I.v.S) to circumvent the limitations of the Treaty of Versailles, and was built by foreign shipyards. The Finnish Vetehinen class and Spanish Type E-1 also provided some of the basis for the Type VII design. These designs led to the Type VII along with Type I, the latter being built in AG Weser shipyard in Bremen, Germany. The production of Type I was stopped after only two boats; the reasons for this are not certain. The design of the Type I was further used in the development of the Type VII and Type IX. Type VII submarines were the most widely used U-boats of the war and were the most produced submarine class in history, with 703 built. The type had several modifications. The Type VII was the most numerous U-boat type to be involved in the Battle of the Atlantic. Category:German Type VIIA submarines Type VIIA U-boats were designed in 1933–34 as the first series of a new generation of attack U-boats. 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 more heavily armed than the smaller Type II U-boats they replaced, with four bow and one external stern torpedo tubes.
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