Parthian class submarine

HMS Phoenix, 1939
Class overview
Name:	Parthian class
Operators:	Royal Navy
Preceded by:	Odin class
Succeeded by:	Rainbow class
In commission:	1929—1946
Completed:	6
Lost:	5
General characteristics
Displacement:	1,760 long tons (1,790 t) surfaced 2,040 long tons (2,070 t) submerged
Length:	289 ft (88 m)
Beam:	30 ft (9.1 m)
Draught:	16 ft (4.9 m)
Propulsion:	Diesel-electric 2 × Admiralty diesel engines, 4,640 hp (3,460 kW) 2 × electric motors, 1,635 hp (1,219 kW) 2 shafts
Speed:	17.5 knots (20.1 mph; 32.4 km/h) surfaced 8.6 kn (9.9 mph; 15.9 km/h) submerged
Complement:	53
Armament:	8 × 21 in (533 mm) torpedo tubes (6 bow, 2 stern) with 14 reloads 1 × QF 4-inch (102 mm) Mk XII deck gun After 1942 : 2 × 20 mm Oerlikon cannons Equipped to lay mines through torpedo tubes

The Parthian-class submarine or P class was a class of six submarines built for the Royal Navy in the late 1920s. They were designed as long-range patrol submarines for the Far East. These boats were almost identical to the Odin class, the only difference being a different bow shape.

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