Japanese submarine I-122

This article is about the submarine launched in 1926 and originally numbered I-22. For the submarine I-22 launched in 1938, see Japanese submarine I-22 (1938).
"I-122" redirects here. For the isotope of iodine (I-122 or 122I), see Iodine-122.

I-22 sometime prior to her renumbering as I-122 on 1 June 1938.
History
Imperial Japanese Navy
NameSubmarine No. 49
BuilderKawasaki Corporation, Kobe, Japan
Laid down28 February 1925
Launched8 November 1926
RenamedI-22 on 8 November 1926
Completed28 October 1928
Commissioned28 October 1928
Decommissioned16 March 1933
Recommissioned15 November 1933
Decommissioned15 February 1936
Recommissioned30 June 1936
RenamedI-122 on 1 June 1938
Decommissioned20 June 1938
Recommissioned1 May 1940
FateSunk by USS Skate, 10 June 1945
Stricken15 September 1945
General characteristics
Class and typeI-121-class submarine
Displacement
  • 1,142 long tons (1,160 t) surfaced
  • 1,768 long tons (1,796 t) submerged
Length85.20 m (279 ft 6 in) overall
Beam7.52 m (24 ft 8 in)
Draft4.42 m (14 ft 6 in)
Propulsion
  • 2 × Rauschenbach Mk.1 diesels
  • 2,400 bhp surfaced
  • 1,100 shp submerged
  • 2 shafts
Speed
  • 14.9 knots (27.6 km/h; 17.1 mph) surfaced
  • 6.5 knots (12.0 km/h; 7.5 mph) submerged
Range
  • 10,500 nmi (19,400 km; 12,100 mi) at 8 knots (15 km/h; 9.2 mph) surfaced
  • 40 nmi (74 km; 46 mi) at 4.5 knots (8.3 km/h; 5.2 mph) submerged
Test depth
  • 75 m (246 ft) (as built)
  • 55 m (180 ft) (from 1936)
Complement80
Armament

I-122, laid down in 1925 as Submarine No. 49 and known as I-22 from her construction period until June 1938, was an I-121-class submarine of the Imperial Japanese Navy that served during the Second Sino-Japanese War and World War II. During the latter conflict, she conducted operations in support of the Japanese invasion of Malaya, the Japanese invasion of the Philippines, the bombing of Darwin, the Battle of Midway, the Guadalcanal campaign, the Battle of the Eastern Solomons, and the New Guinea campaign. From mid-1943 she served as a training ship in Japanese waters until she was sunk during a training voyage in 1945.

After she was renumbered I-122 in 1938, the number I-22 was assigned to a later submarine which also served during World War II.

  1. ^ Campbell, John Naval Weapons of World War Two ISBN 0-87021-459-4 p.191