Soviet S class, Srednyaya class submarine   The S-class IX series was a Dutch-German design submitted to the Soviets based on the German Type Ia. The IX bis is a later on Soviet improved design. Ten units were built under the XVI series, S-38, S-45 to 48, S-58 to 62 those units were of all –welded construction using high tensile steel. Specifications, Soviet S-class series IX bis/XVI: Saddle-tank configuration, 4.60m riveted hull diameter with seven compartments. Battery capacity was increased in both series over the IX series and so was the fuel. The 100mm gun shield that characterized the IX series was deleted and the gun was probably mounted abaft the conning tower in the XVI series. Displacement (srf/sub tons): 856/1,090 Dimensions (L*B*D feet): 255`1*21`0*13`4 Propulsion: 2*2,000hp Kolomna I-D diesels, 2*550hp electric motors, creeping motors, battery capacity increased over the previous S series 2*62 cell type 38 MAK-700 batteries, 2 shafts Speed (srf/sub knots): 19/9 Range (srf/sub n/miles@knots): 9,500@10/9@9 or 135@3 Diving depth (feet): 328 Complement: 45 officers and crew Torpedo: 4*21"(533mm) bow torpedo tubes, 2*21" stern torpedo tubes, total of 12 torpedoes Mines: none Armament: 1*100mm/50cal. B-24 main deck gun,1*45mm/46 cal. K-21 AA gun   Construction Three hulls were built under the IX series by Ordzhonikidze, Leningrad; launched in 1935-36, designated N-1 to N-3. Some 34more uniteswere launched from 1936 to 1946 under the IX bis series and 10 under XVI series. Those 44 or so hulls were constructed by different shipyards allover the Soviet Union. Three submarines were transferred to China in 1954-55. Back to History Index Image Country Year Description Russia 2005 Submarine S class series IX (1936), 3 March 2005, cancellation Murmansk Russia 2005 Submarine S class series IX (1936), 3 March 2005, cancellation Saint Petersburg Russia 2005 Submarine S class series IX (1936) (sheet of 14 stamps) Russia 2005 Submarine S class series IX (1936)