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
Type	Submarine
Displacement	1,760 long tons (1,788 t) surfaced; 2,040 long tons (2,073 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 in (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.

Class overview
HMS Phoenix, 1939
Name	Parthian class
Operators	Royal Navy
Preceded by	Odin class
Succeeded by	Rainbow class
In commission	1929–1946
Completed	6
Lost	5
General characteristics
Type	Submarine
Displacement	1,760 long tons (1,788 t) surfaced 2,040 long tons (2,073 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 in (102 mm) Mk XII deck gun After 1942 : 2 × 20 mm Oerlikon cannons Equipped to lay mines through torpedo tubes