Japanese repair ship Akashi

Akashi was a Japanese repair ship, serving during World War II. She was the only specifically designed repair ship operated by the Imperial Japanese Navy. The navy based her design on the US Navy's USS Medusa.

For other ships with the same name, see Japanese ship Akashi.

Akashi trial run off Sasebo in July 1939
History
NameAkashi
NamesakeAkashi Strait
BuilderSasebo Naval Arsenal
Cost
  • 10,000,000 JPY as Akashi
  • 23,027,000 JPY as Mihara and Momotori
Launched29 June 1938
Completed31 July 1939
Decommissioned10 May 1944
FateSunk on 30 March 1944
General characteristics
TypeRepair ship
Displacement
  • 9,000 long tons (9,144 t) standard
  • 10,500 long tons (10,668 t) trial
Length
  • 158.50 m (520 ft 0 in) overall
  • 154.66 m (507 ft 5 in) waterline
Beam20.50 m (67 ft 3 in)
Draught6.29 m (20 ft 8 in)
Installed power10,000 bhp
Propulsion2 × Mitsubishi/MAN Model 60 diesels, 2 shafts
Speed19.2 knots (22.1 mph; 35.6 km/h)
Range8,000 nmi (15,000 km) at 14 kn (16 mph; 26 km/h)
Crew336 men and 433 engineers
Armament
Armournone

Construction
Line drawing of Akashi as she appeared in 1940

In 1937 the Imperial Japanese Navy had converted the old battleship Asahi to serve as a repair ship. After the conversion of Asahi, a decision was made to build a dedicated repair ship with better capabilities for that task. The Imperial Japanese Navy planned for her to carry out 40% of the repairs needed by the Combined Fleet (needing approximately 140,000-man-hours). Therefore, she was equipped with the latest machine tools imported from Germany.

War service
Akashi in February 1943 at Truk

During the war Akashi operated out of the Japanese base in the Truk atoll where she repaired various types of battle-damaged Japanese warships, including Shōkaku in October 1942 and Yamato in December 1943. In February 1944 the Americans made a raid on Truk (Operation Hailstone), sinking and damaging many ships. Akashi was damaged in these attacks and escaped to the Japanese atoll of Palau.[1]

Fate
Akashi under attack on 30 March 1944 at Palau

On 30 March 1944, while anchored off Urukthapel in the Palau Islands, Akashi was hit numerous times by bombs and rockets from American aircraft from Task Group 58, during Operation Desecrate One. She was sunk in shallow water with her bridge still remaining above the water.[2][3]

Ships in class
Ship # Ship Builder Laid down Launched Completed Fate
Akashi (明石) Sasebo Naval Arsenal 18 January 1937 29 June 1938 31 July 1939 Sunk on 30 March 1944; salvaged and scrapped in 1954.
5416
5417		 Mihara (三原)
Momotori (桃取)		 Mitsubishi, Yokohama Shipyard Cancelled on 11 August 1943.

Bibliography
  • "Rekishi Gunzō"., History of Pacific War Vol.51 The truth histories of the Japanese Naval Vessels part-2, Gakken (Japan), August 2005, ISBN 4-05-604083-4
  • Ships of the World special issue Vol.47 Auxiliary Vessels of the Imperial Japanese Navy, Kaijinsha, (Japan), March 1997
  • The Maru Special, Japanese Naval Vessels No.34 Japanese Auxiliary vessels, Ushio Shobō (Japan), December 1979
  • Senshi Sōsho Vol.31, Naval armaments and war preparation (1), "Until November 1941", Asagumo Simbun (Japan), November 1969
  • Senshi Sōsho Vol.88, Naval armaments and war preparation (2), "And after the outbreak of war", Asagumo Simbun (Japan), October 1975

References
  1. "Japanese Repair Ships".
  2. Morison, Samuel Eliot (2001). History of United States Naval Operations in World War II: New Guinea and the Marianas, March 1944 – August 1944. Vol. 8. University of Illinois Press (reprint). pp. 32–33. ISBN 978-0-252-07038-9.Google Books limited preview
  3. Belote, James H.; Belote, William M. (1975). Titans of the seas: the development and operations of Japanese and American carrier task forces during World War II. New York: Harper & Row. p. 226. ISBN 978-0-06-010278-4.
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