Japanese submarine I-23

History
Japan
Name	I-23
Builder	Kure Naval Arsenal
Laid down	Yokosuka Navy Yard as Submarine No. 41, 8 December 1938
Launched	24 November 1939
Commissioned	27 September 1941
Fate	Presumed lost with all 96 hands off Hawaii, 28 February 1942
General characteristics
Class and type	Type B1 submarine
Displacement	2,584 long tons (2,625 t) surfaced; 3,654 long tons (3,713 t) submerged;
Length	108.6 m (356 ft)
Beam	9.3 m (31 ft)
Draft	5.14 m (16.9 ft)
Propulsion	2 × Diesel engines, 12,400 hp (9,200 kW); Electric motors, 2,000 hp (1,500 kW);
Speed	23.5 knots (44 km/h) surfaced; 8 knots (15 km/h) submerged;
Armament	6 × 533 mm (21 in) torpedo tubes; 17 × torpedoes; 1 × 14 cm/40 11th Year Type naval gun;
Aircraft carried	1 x Watanabe E9W1 Type 96 "Slim" floatplane

I-23 was a Type B1 submarine of the Imperial Japanese Navy during World War II. After a raid on the West Coast of California she participated in an attempt at a second attack upon Pearl Harbor. After surviving an American air attack on Kwajalein I-23 was lost in early 1942 with all hands somewhere off the Oahu coast of Hawaii.^[2]

^ Campbell, John Naval Weapons of World War Two ISBN 0-87021-459-4 p.191
^ Carpenter, Dorr Submarines of the Imperial Japanese Navy ISBN 0-87021-682-1 p.101

History

Japan
Name	I-23
Builder	Kure Naval Arsenal
Laid down	Yokosuka Navy Yard as Submarine No. 41, 8 December 1938
Launched	24 November 1939
Commissioned	27 September 1941
Fate	Presumed lost with all 96 hands off Hawaii, 28 February 1942
General characteristics
Class and type	Type B1 submarine
Displacement	2,584 long tons (2,625 t) surfaced 3,654 long tons (3,713 t) submerged
Length	108.6 m (356 ft)
Beam	9.3 m (31 ft)
Draft	5.14 m (16.9 ft)
Propulsion	2 × Diesel engines, 12,400 hp (9,200 kW) Electric motors, 2,000 hp (1,500 kW)
Speed	23.5 knots (44 km/h) surfaced 8 knots (15 km/h) submerged
Armament	6 × 533 mm (21 in) torpedo tubes 17 × torpedoes 1 × 14 cm/40 11th Year Type naval gun^[1]
Aircraft carried	1 x Watanabe E9W1 Type 96 "Slim" floatplane