MO-class small guard ship

The MO (Russian: Малый Охотник, Malyj Okhotnik; English: Small Hunter, nickname Moshka (Midge) is a class of small ships produced before and during World War II for the Soviet Navy. Their primary function originally was anti-submarine warfare. During the war they carried out many additional roles from supporting landing operations to escorting convoys. Over 350 ships were built.

MO-4 type during World War II
Class overview
NameMO
Operators Soviet Navy
Succeeded byOD200 class
SubclassesMO-1, MO-2, MO-3, MO-4, BMO
Built1935–1945
In service1935–1945
Completed350+
General characteristics MO-4 Type
TypeGuard ship/submarine chaser
Displacement
  • 50.6 tonnes (49.8 long tons; 55.8 short tons) (standard)
  • 56.5 tonnes (55.6 long tons; 62.3 short tons) (full load)
Length26.9 m (88 ft 3 in)
Beam4.02 m (13 ft 2 in)
Draught1.35 m (4 ft 5 in)
Propulsion
  • 3 × GAM-34BS engines
  • Total power
  • 2,025 shp (1,510 kW) – 2,550 shp (1,900 kW)
Speed26 knots (48 km/h) – 27.4 knots (50.7 km/h)
Complement22 men
Armament
  • 2 × 1 – 45 mm (1.8 in) 21K guns
  • 2 × 1 – 12.7 mm (0.50 in) DShK machine guns
  • 2 Depth charge launchers.
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