D3-class motor torpedo boat

	The D-3-class torpedo boat TKA-12 displayed in Severomorsk
Class overview
Builders	NKVD Shipyard No.5, Leningrad; Shipyard No.341, Rybinsk; Shipyard No.640, Sosnovka;
Operators	Soviet Navy; Polish Navy; Finnish Navy;
Preceded by	G-5 class
Succeeded by	Project 123-bis class
Subclasses	2
Built	1939–1945
In commission	1941–1950s
Completed	73
Lost	28
General characteristics
Type	Motor torpedo boat
Displacement	31 tonnes (31 long tons; 34 short tons) (standard)
Length	22.4 m (73 ft 6 in) overall
Beam	4.04 m (13 ft 3 in)
Draught	1.80 m (5 ft 11 in)
Propulsion	GAM-34 or GAM-34BS or GAM-34FN petrol engines
Speed	32–48 knots (37–55 mph; 59–89 km/h)
Complement	9
Armament	2 12.7 mm (0.50 in) machine guns later 1 20 mm (0.79 in) or 1 25 mm (0.98 in) and 1 or 2 12.7 mm (0.50 in) 2 × 533 mm (21 in) torpedoes; 4 depth-charges;

The D-3-class, designated Project P-19, was a class of Soviet wooden motor torpedo boats (MTB) built before and during World War II. The D stands for Derevyanniy (Russian: Деревянный, wooden).

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