Laid down at Zhdanov at Leningrad on 10 March 1934, launched on 23 December 1934 and commissioned on 24 August 1935. Served in the Baltic. Apparently havy damaged due to a mine in June 1941 in the Gulf of Finland and became a hulk at Kronstadt and later broken up.
Of the VI-Bis class with a displacement of 161 tons surfaced and 202 tons submerged with as dimensions 124' x 10'3" x 8'6". Her crew numbered 18 men. Their armament consisted of 2-21"torpedo tubes placed in the bow and 1-45mm anti aircraft gun. The engines consisted of a 658 hp diesel engine and a 235 hp electror motor allowing a surfaced speed of 13,2 and a submerged speed of 7,9 knots with a surfaced range of 575 nautical miles with a speed of 13,2 knots and 1,600 nautical miles with 8,2 knots, in case she was submerged the range was 6 nautical miles by 7,9 and 55 nautical miles by 2,5 knots. The diving depth was 197'.
