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“SPRING STYLES,” 1911-1925

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Photo #: S-584-164

"Cruiser Submarine Type # 4 (High Speed)" ... October 23, 1920

Incomplete preliminary design plan for a "Cruiser Submarine" (Type # 4 -- High Speed). The Chief of the Bureau of Construction and Repair requested in early October 1920 that his staff develop a set of comparative studies for ships of this type, apparently reflecting his desire to anticipate a possible need for large submarine scouts. Compared to Type # 1 (see Photo # S-584-163), Type # 4 sacrificed considerable cruising radius and most gun armament to achieve higher speed, while adding no protection, and accordingly was considered unattractive in a contemporary bureau report. The concept was not pursued.
This plan provided two 8-inch guns, diesel machinery, and a surface speed of 18 knots in a ship 550 feet long on the waterline, 42 feet in beam, and with a normal surface displacement of 8,750 tons.
Note: The original document was pencil on linen (black on white).

The original plan is in the 1911-1925 "Spring Styles Book".

U.S. Naval Historical Center Photograph.

Online Image: 396KB; 2475 x 1100 pixels


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Image posted 3 February 2008