Type XXI submarine, a German technologically-advanced submarine produced in 1945.
The Type XXI design directly influenced advanced post-war submarines, the GUPPY improvements to the American Gato, Balao, and Tench class submarines and the Soviet submarine projects designated by NATO as the Whiskey and Zulu classes.
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Between 1943 and 1945, 118 boats were assembled by Blohm & Voss of Hamburg, AG Weser of Bremen, and F. Schichau of Danzig.
type species | submarine | type | Type (biology) | Diabetes mellitus type 1 | Type O Negative | Diabetes mellitus type 2 | nuclear submarine | Anti-submarine warfare | Volkswagen Type 2 | Type I and type II errors | Type 56 assault rifle | type (biology) | Type 38 | Bugatti Type 57 | anti-submarine warfare | Type II supernova | Type Directors Club | Type 38 rifle | type genus | Type 59 | Type 45 destroyer | Trident submarine | Ohio-class submarine | Japanese submarine I-17 | Jaguar S-Type | Handley Page Type O | Geranylgeranyltransferase type 1 | Blood type | Word (data type) |