Japanese submarine I-33

The salvaged wreck of I-33 on 30 August 1953.
History
Japan
Name	Submarine No. 146
Builder	Mitsubishi
Laid down	21 February 1940
Renamed	I-41 on 25 March 1941
Launched	1 May 1941
Renamed	I-33 on 1 November 1941
Completed	10 June 1942
Commissioned	10 June 1942
Fate	Sank 26 September 1942 Refloated 29 December 1942 Repairs completed 1 June 1944 Sank during post-repair trials 13 June 1944 Stricken 10 August 1944 Refloated July–August 1953 Scrapped
General characteristics
Class and type	Type B1 submarine
Displacement	2,584 tons surfaced 3,654 tons submerged
Length	108.7 m (357 ft)
Beam	9.3 m (31 ft)
Draft	5.14 m (16.9 ft)
Propulsion	2 diesels: 12,400 hp (9,200 kW) Electric motors: 2,000 hp (1,500 kW)
Speed	23.5 knots (43.5 km/h) surfaced 8 knots (15 km/h) submerged
Range	14,000 nautical miles (26,000 km) at 16 knots (30 km/h)
Test depth	100 m (330 ft)
Complement	94
Armament	6 × 533 mm (21 in) forward torpedo tubes 17 torpedoes 1 × 14 cm/40 11th Year Type naval gun[1]
Aircraft carried	1 Yokosuka E14Y seaplane

I-33 was an Imperial Japanese Navy B1 type submarine. Completed and commissioned in 1942, she served in World War II, making one war patrol that included the Battle of the Eastern Solomons, before sinking accidentally in September 1942. Refloated and repaired, she sank again in a diving accident during post-repair sea trials in June 1944.