Finnish S class torpedo boat

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Class overview
Name: S
General characteristics
Type: torpedo boat
Displacement: 290 tons (S1-S5)
186 tons (S6)
Length: 57.9 m (S1-S5)
52.35 m (S6)
Beam: 5.6 m (S1-S5)
5.25 m (S6)
Draught: 1.7 m (S1-S5)
1.47 m (S6)
Propulsion: 2x Steam engines, four Yarrow boilers; 3,800 hp
Speed: 27 knots (S1-S5)
26 knots (S6)
Range: 550 nm (at 15 knots) (S1-S5)
Complement: 53 (S1-S5)
32 (S6)
Armament: S1-S5:
2x 75 mm/50
2x 456 mm torpedo tubes
2x machine guns
14-18 mines
S6:
3x 47 mm
2x 380 mm torpedo tubes
14-18 mines
Notes: Ships in class include: S1, S2, S3, S4, S5, S6

The Finnish S class torpedo boats was a series of six ex-Russian torpedo boats, that had been taken over by the Finns after the Russian revolution and the Finnish Civil War.

S1-S5 belonged to the Russian Sokol class, while S6 was of the smaller Ussovi class.

[edit] Ships of the class

S1
ex-Ryaniy (Рьяный = eager) and ex-Sova (Сова = owl); shipyard number: 112) was a large Russian torpedo boat, which was taken over by the Finns after the Finnish Civil War in 1918. She was sunk as a training target in 1930.
S2
ex-Prozorlivij (Прозорливый = sharp) and ex-Gagara (Gagara = loon) in Russian service. Taken over by the Finns after the Finnish Civil War in 1918. Lost in a storm on 4 October 1925, with the loss of all hands.
S3
ex-Poslushniy (Прозорливый = obedient) and ex-Korshun (Коршун = Kite) in Russian service; shipyard number: 101) was taken over by the Finns after the Finnish Civil War in 1918. The ship was returned to Soviet Russia in 1922 in accordance to the Tarto peace treaty of 1920. She was scrapped in 1925.
S4
ex-Rezviy (Резвый = frisky) and ex-Voron (Ворон = raven) in Russian service; shipyard number: 109) was taken over by the Finns after the Finnish Civil War in 1918. The ship was returned to Soviet Russia in 1922 in accordance to the Tarto peace treaty of 1920. She was scrapped in 1925.
S5
ex-Podvishniy (Подвижный = mobile) and ex-Albatros (Албатрос = albatros; shipyard number: 99) was taken over by the Finns after the Finnish Civil War in 1918. She was used as a decoy target during the Continuation War and was anchored at Pellinge. She was scuttled in shallow water (so that the deck still was above the surface) and a large number of anti-aircraft guns were scattered on the near-by islands. In this manner the Finns hoped to lure the Soviet Air Force to attack the "Väinämöinen". No aircraft were however sent there.
S6
ex-Minonosets 212 was a Russian torpedo boat, which acted as a minesweeper during WWI. She was taken over by the Finns after the Finnish Civil War in 1918 and returned to Soviet Russia in 1922 in accordance to the Tarto peace treaty of 1920. The S6 was not of the same class as the other S-boats, but of the smaller Ussovi class.
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