Yamashio Maru-class escort carrier

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YamashioMaru-1945.jpg
Yamashio Maru
Class overview
Builders: Mitsubishi Heavy Industries
Operators: War flag of the Imperial Japanese Army.svg Imperial Japanese Army
Preceded by: Akitsu Maru
Succeeded by: Kumano Maru
Built: 1944–1945
In commission: 1945
Planned: 2
Completed: 1
Cancelled: 1
Lost: 1
General characteristics
Type: Escort carrier
Displacement: 16,119 tonnes (15,864 long tons)
Length: 157.5 m (516 ft 9 in)
Beam: 20.48 m (67 ft 2 in)
Draught: 9 m (29 ft 6 in)
Installed power: 4,500 shp (3,400 kW)
2 boilers
Propulsion: 1 shaft
Geared steam turbine
Speed: 15 knots (28 km/h; 17 mph)
Range: 9,000 nmi (17,000 km; 10,000 mi) @ 13 knots (24 km/h; 15 mph)
Complement: 221
Armament: 16 × 25 mm (1 in) AA guns
120 Depth charges
Aircraft carried: 8

The Yamashio Maru-class (Japanese: 山汐丸) consisted of a pair of auxiliary escort carriers operated by the Imperial Japanese Army during World War II. They were converted from tankers. Only the name ship was completed during the war and she was sunk by American aircraft before she could be used.

Construction[edit]

In 1944, the Japanese Army, which had already converted two passenger liners into combined assault ship and aircraft carriers, decided to acquire its own escort carriers to provide aerial anti-submarine cover for troop convoys. It therefore chartered two partly built Type 2TL Tankers, Yamashio Maru and Chigusa Maru, for conversion to auxiliary escort carriers.[1]

The conversion was extremely simple, with a 107-metre (351 ft 1 in)-long flush flight deck added. There was no hangar, the ship's eight Ki-76s being stored on deck. Defensive armament consisted of sixteen 25 mm anti-aircraft guns, with a depth charge projector forward.[2]

Operational history[edit]

Yamashio Maru commissioned on 27 January 1945, was sunk at Yokohama harbor by US aircraft on 17 February 1945.[2][3] Plans were drawn up for conversion to a coal-burning freighter,[1] but she was never used as a carrier. Her sister ships, Chigusa Maru and Zuiun Maru, were incomplete when Japan surrendered and served after the war as tankers:[2]

  • Chigusa Maru sunk in 1945 and repaired as tanker in 1945 and scrapped in Sasebo in June 1963
  • Zuiun Maru was scrapped in Oskata on June 15, 1964

Photo[edit]

Notes[edit]

  1. ^ a b Gardiner and Chesneau, p. 213
  2. ^ a b c Chesneau, p. 186
  3. ^ "The Official Chronology of the U.S. Navy in World War II". Retrieved 21 December 2012. 

Bibliography[edit]

  • Chesneau, Roger (1995). Aircraft Carriers of the World, 1914 to the Present: An Illustrated Encyclopedia (New, revised ed.). Annapolis, Maryland: Naval Institute Press. ISBN 0-87021-902-2. 
  • Chesneau, Roger, ed. (1980). Conway's All the World's Fighting Ships 1922-1946. Greenwich, UK: Conway Maritime Press. ISBN 0-85177-146-7. 
  • Fukui, Shizuo (1991). Japanese Naval Vessels at the End of World War II. London: Greenhill Books. ISBN 1-85367-125-8. 
  • Jentschura, Hansgeorg; Jung, Dieter; Mickel, Peter (1977). Warships of the Imperial Japanese Navy, 1869–1945. Annapolis, Maryland: United States Naval Institute. ISBN 0-87021-893-X. 
  • Polmar, Norman; Genda, Minoru (2006). Aircraft Carriers: A History of Carrier Aviation and Its Influence on World Events. Volume 1, 1909–1945. Washington, D.C.: Potomac Books. ISBN 1-57488-663-0. 

External links[edit]


See also[edit]

Imperial Japanese Army Railways and Shipping Section