Submarine No.71

	Submarine No.71 in 1938
Class overview
Name	Number 71
Completed	1
Scrapped	1
History
Empire of Japan
Name	Number 71
Builder	Kure Naval Arsenal
Laid down	December 1937
Launched	August 1938
Commissioned	1938
Fate	Scrapped 1940
General characteristics
Class and type	Experimental high-speed submarine
Displacement	216 tonnes (213 long tons) surfaced; 244 tonnes (240 long tons) submerged;
Length	42.8 m (140 ft 5 in)
Beam	3.3 m (10 ft 10 in)
Draft	3.1 m (10 ft 2 in)
Installed power	1,200 bhp (890 kW) (diesel); 1,800 hp (1,300 kW) (electric motor);
Propulsion	Diesel-electric; 1 × diesel engine; 1 × electric motor; One shaft;
Speed	13.25 knots (24.54 km/h; 15.25 mph) surfaced; 21.25 knots (39.36 km/h; 24.45 mph) submerged;
Range	3,830 nmi (7,090 km; 4,410 mi) at 12 knots (22 km/h; 14 mph) surfaced; 33 nmi (61 km; 38 mi) at 7 knots (13 km/h; 8.1 mph) submerged;
Test depth	80 m (260 ft)
Complement	11
Armament	3 × bow 450 mm (17.7 in) torpedo tubes

Submarine No.71 (Number 71) was an experimental high-speed submarine built for the Imperial Japanese Navy (IJN) during the 1930s.

Class overview
Submarine No.71 in 1938
Name	Number 71
Completed	1
Scrapped	1
History
Empire of Japan
Name	Number 71
Builder	Kure Naval Arsenal
Laid down	December 1937
Launched	August 1938
Commissioned	1938
Fate	Scrapped 1940
General characteristics
Class and type	Experimental high-speed submarine
Displacement	216 tonnes (213 long tons) surfaced 244 tonnes (240 long tons) submerged
Length	42.8 m (140 ft 5 in)
Beam	3.3 m (10 ft 10 in)
Draft	3.1 m (10 ft 2 in)
Installed power	1,200 bhp (890 kW) (diesel) 1,800 hp (1,300 kW) (electric motor)
Propulsion	Diesel-electric 1 × diesel engine 1 × electric motor One shaft
Speed	13.25 knots (24.54 km/h; 15.25 mph) surfaced 21.25 knots (39.36 km/h; 24.45 mph) submerged
Range	3,830 nmi (7,090 km; 4,410 mi) at 12 knots (22 km/h; 14 mph) surfaced 33 nmi (61 km; 38 mi) at 7 knots (13 km/h; 8.1 mph) submerged
Test depth	80 m (260 ft)
Complement	11
Armament	3 × bow 450 mm (17.7 in) torpedo tubes