Japanese submarine I-64

I-64 on sea trials off Kure, Japan, on 30 August 1930.
History
Empire of Japan
Name	I-64
Builder	Kure Naval Arsenal, Kure, Japan
Laid down	28 March 1927
Launched	5 October 1929
Completed	30 August 1930
Commissioned	30 August 1930
Decommissioned	15 November 1939
Recommissioned	15 November 1940
Fate	Sunk by USS Triton, 17 May 1942
Renamed	I-164, 20 May 1942
Stricken	10 July 1942
General characteristics
Class and type	KD4 Type, Kadai type submarine
Displacement	1,635 (1,720 maximum) tons surfaced 2,300 tons submerged
Length	97.70 m (320 ft 6 in)
Beam	7.80 m (25 ft 7 in)
Draught	4.83 m (15 ft 10 in)
Propulsion	Surface: 2 x Rauschenbach Mk 2 diesel engines, 6,000 hp (4,474 kW), two shafts, 230 tons fuel Submerged: Electric motor, 1,800 hp (1,342 kW)
Speed	20 knots (37 km/h; 23 mph) diesel 8.5 knots (15.7 km/h; 9.8 mph) electric
Range	Surface: 10,800 nmi (20,000 km; 12,400 mi) at 10 knots (19 km/h; 12 mph)[1] Submerged: 60 nmi (110 km; 69 mi) at 3 knots (5.6 km/h; 3.5 mph)
Test depth	60 m (197 ft)
Complement	58 officers and enlisted
Armament	6 x 533 mm (21 in) torpedo tubes (4 bow, 2 stern)/14 x 533 mm (21 in) Type 89 torpedoes 1 x 120 mm (4.7 in) gun 1 × 7.7 mm (0.3 in) machine gun

I-64 was an Imperial Japanese Navy Kaidai-class cruiser submarine of the KD4 sub-class commissioned in 1930. During World War II, she supported the Japanese invasion of Malaya and conducted war patrols in the Indian Ocean before she was sunk in May 1942 while deploying to take part in the upcoming Battle of Midway. Just after her loss, and before her loss became known to the Japanese, she was renumbered I-164.