The Som class ( Russian Сом 'Wels' ) was a class of gasoline-electric small submarines of the Imperial Russian Navy . The boats were built by the tsarist navy from 1904 as part of a fleet emergency program due to the aggravated situation in the Far East with Japan at the Nevsky shipyard in Saint Petersburg . The type boat of the class was the Som (ex- Fulton ) built by the American Electric Boat Company .
In 1901, Electric Boat built the Fulton , designed by John Philip Holland , the prototype of the later Plunger class (Holland VII boat). This was delivered partially dismantled to Kronstadt , reassembled there and launched on June 29, 1904. The boat named Som became the type boat of the submarine class of the same name, built under license in St. Petersburg .
The Som- class boats were single-hulled boats with a spindle-shaped pressure hull and a propeller located centrally at the stern . The hull was divided into three sections: bow section, control center and engine room in the stern. In the bow section, the only torpedo tube was in the middle, in the cross section of the vertical and transverse axis. The two reserve torpedoes were stored in the headquarters above the main ballast tanks . The propulsion system consisted of a Deutz - gasoline engine and an electric motor . The two batteries with 2 × 20 cells housed in the bilge of the engine room enabled up to 15 hours of underwater travel. The boats had a cross-shaped stern rudder system , there were no separate depth rudders as in modern boats. The low tower was streamlined .
Robert Gardiner: Conway's all the world's fighting ships 1906-1921 . Conway Maritime Press, 1985, ISBN 0-85177-245-5 .
Norman Polmar, Jurrien Noot: Submarines of the Russian and Soviet Navies, 1718–1990 . Naval Institute Press, 1991, ISBN 0-87021-570-1 , pp.46 ( limited preview in Google Book search).
Sunken submarine "Som". First video appeared on the Internet. In: Sputnik Germany. de.sputniknews.com, accessed on August 6, 2015 (with video in very good quality).
Individual evidence
↑ Norman Polmar, Jurrien Noot: Submarines of the Russian and Soviet Navies, 1718-1990 . Naval Institute Press, 1991, p.22 ( limited preview in Google Book search).
↑ Штурм Глубины. In: deepstorm.ru. Retrieved July 28, 2015 (Russian).