Photo #: S-584-165
"Cruiser Submarine Type # 3 -- Protected against Torp. & Gun
Fire" ... October 23, 1920
Preliminary design plan for a "Cruiser Submarine" (Type
# 3 -- Protected against Torpedoes and Gunfire). 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 for transoceanic operations.
Compared to the other three designs considered, a contemporary
Bureau report considered Type # 3 superior for having a better
balance of capabilities, being deficient only in speed. The concept
was not pursued, however.
This plan provided four 8-inch guns, diesel machinery, and a
surface speed of 11.75 knots in a ship 425 feet long on the waterline,
60 feet in beam, and with a normal surface displacement of 13,500
tons.
Note: The original document was ink on linen (black on
white).
The original plan is in the 1911-1925 "Spring Styles Book".
U.S. Naval Historical Center Photograph.
Online Image: 470KB; 2475 x 1100
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