Photo #: S-511-15 "Heavy Cruiser Study - Scheme 3" 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 20 March 1940, is for a ship of 17,300 tons standard displacement, with a main battery of six 12"/50 guns, a secondary battery of twelve 5"/38 guns and a 120,000 horsepower powerplant. Ship's dimensions are: waterline length 710'; beam 74'; draft 24.5'. Scale of the original drawings is 1/32" = 1'. The original plan is in the 1939-1944 "Spring Styles Book" held by the Naval Historical Center. U.S. Naval Historical Center Photograph. Online Image: 445KB; 3000 x 1815 pixels