Photo #: S-511-17 12-Inch Gun Cruiser Study, CA2F (with hull sections for Schemes CA2E & F, G, H & I) Preliminary design plan prepared for the General Board as part of the process leading to the Alaska class (CB1-6) large cruiser design. This plan, dated 19 June 1940, is for a ship (CA2F) of 24,700 tons standard displacement and 28,300 tons trial displacement, with a main battery of seven 12/50 guns, a secondary battery of twelve 5/38 guns, and a 150,000 horsepower powerplant for a speed of 33 knots. Ship's dimensions are: waterline length 750'; beam 84'; draft 29'. Scale of the original plan and side elevation drawings is 1/32 = 1'. See Photo #: S-511-17 (complete caption) for discussion of Schemes CA2E through CA2I. The original plan is in the 1939-1944 Spring Styles Book held by the Naval History and Heritage Command. U.S. Naval History and Heritage Command Photograph.