USS St. Louis St. Louis class Light Cruiser: Displacement: 13,327 tons (full load) Length: 608'4" Beam: 61'8" Draft: 25'10" Speed: 32 knots Armament: 5x3 6"/47, 4x2 5"/38, 8x1 .50-caliber MG; 2 planes Complement: 1,216 Built at Newport News, and commissioned 19 May 1939