Japanese submarine I-63

Sister ship I-56 in harbor, 1930
History
Empire of Japan
Name	I-63
Builder	Sasebo Naval Arsenal, Sasebo, Japan
Laid down	12 August 1926
Launched	28 September 1927
Completed	20 December 1928
Commissioned	20 December 1928
Decommissioned	20 March 1934
Recommissioned	15 November 1934
Fate	Sunk in collision 2 February 1939 Refloated January 1940 Scrapped
Stricken	1 June 1940
General characteristics
Class and type	Kaidai-class submarine (KD3B Type)
Displacement	1,829 t (1,800 long tons) surfaced 2,337 t (2,300 long tons) submerged
Length	101 m (331 ft 4 in)
Beam	8 m (26 ft 3 in)
Draft	4.9 m (16 ft 1 in)
Installed power	6,800 bhp (5,071 kW) (diesels) 1,800 hp (1,342 kW) (electric motors)
Propulsion	Diesel-electric 2 × diesel engines 2 × electric motors
Speed	20 knots (37 km/h; 23 mph) surfaced 8 knots (15 km/h; 9.2 mph) submerged
Range	10,000 nmi (19,000 km; 12,000 mi) at 10 knots (19 km/h; 12 mph) surfaced 90 nmi (170 km; 100 mi) at 3 knots (5.6 km/h; 3.5 mph) submerged
Test depth	60 m (200 ft)
Complement	60
Armament	8 × 533 mm (21 in) torpedo tubes (6 bow, 2 stern) 1 × 120 mm (4.7 in) deck gun

I-63 was an Imperial Japanese Navy Kaidai-class cruiser submarine of the KD3B sub-class commissioned in 1928. She was sunk in an accidental collision with her sister ship I-60 with the loss of most of her crew in early 1939. The wreck was salvaged in 1940 and scrapped.