RvM
Of the Tambor-class with as sister ships Trout, Tuna, Triton, Tautog and Tambor. Laid down at the Electric Boat Company at Groton, Connecticut on 27 April 1929, launched on 27 March 1940, commissioned on 21 August 1940, decommissioned and laid up in the Atlantic Reserve Fleet on 13 December 1945, decommissioned on 6 February 1946 but on 12 July of the same year again decommissioned, stricken on 23 December a year later and on 18 March 1948 sold to be broken up. Her pennant was 200. The surfaced displacement was 1,475 BRT and while submerged 2,370 BRT with as dimensions 299 x 27 x 13 ¾’. The armament consisted in 1944/1945 of 1-4” gun, 2-2cm Oerlikon guns and 10-21” torpedo tubes (6 bow and 4 stern). The crew numbered 65 men. Double hull construction and fitted out with bilge keels.The surfaced speed was maximum 20 knots and while submerged maximum 8 knots allowed by the diesel engines which supplied 5,400 hp and the electric engines which supplied 2,740 hp.