Unterseeboot 691

Unterseeboot 691 (U-691) would have been a Type VIIC/41 submarine of the Kriegsmarine, if she had ever been built. Her construction by Howaldtswerke of Hamburg was ordered on April 2, 1942, suspended on September 30, 1943, and cancelled on July 22, 1944. The new Elektro Boat XXI design had made the Type VIIs obsolete.

Related Topics:
Type VIIC/41 - Submarine - Kriegsmarine - Howaldtswerke - Hamburg - April 2 - 1942 - September 30 - 1943 - July 22 - 1944 - Elektro Boat XXI

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Neal Stephenson's novel Cryptonomicon includes a fictictious U-691, a Type IXD/42, launched at Wilhelmshaven on September 19, 1940 (four years before IXD/42s were actually developed) and fitted with an experimental schnorkel. It is possible Stephenson picked the number not for historical accuracy, but for its being prime.

Related Topics:
Neal Stephenson - Cryptonomicon - Type IXD/42 - Wilhelmshaven - September 19 - 1940 - Schnorkel

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See Also: List of U-boats

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