Finnish torpedo boat S2

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History
Russian Empire
Name	Gagara (Гагара) (1901–1902) Prozorlivy (Прозорливый) (1902–1918)
Ordered	1898
Launched	26 June 1899
Commissioned	September 1901
Fate	Taken over by Finland in 1918
Finland
Name	S2
Commissioned	1918
Fate	Lost in a storm on 4 October 1925
General characteristics
Class and type	Sokol-class torpedo boat
Displacement	290 tons
Length	57.9 m (190 ft)
Beam	5.6 m (18 ft)
Draft	1.7 m (5.6 ft)
Propulsion	two steam engines, four Yarrow boilers, 3,800 hp
Speed	27 knots (50 km/h)
Range	550 nautical miles (1,020 km) at 15 knots
Complement	53 (52 in Russian service)
Armament	1901–1912: 1 × 75 mm/50 3 × 47 mm 2 × 381 mm torpedo tubes 1912–1925: 2 × 75 mm/50 2 × MG's 2 × 456 mm torpedo tubes 14–18 mines

S2 (ex-Prozorlivy and ex-Gagara in Russian service) was a Finnish Sokol-class torpedo boat that had been seized from the Russians after the Finnish Civil War 1918. She sank during a fierce storm on 4 October 1925, taking with her the whole crew of 53.