Aiyo Maru

Aiyo Maru was a 2,746-ton transport ship of the Imperial Japanese Army during World War II.

Name: Aiyo Maru
Builder: Toyo Kisen Kaisha
Laid down: 10 March 1941
Launched: 28 October 1941
Completed: 20 January 1942
Fate: Sunk by aircraft on 3 March 1943 at 07°15'S, 148°30'E
General characteristics
Tonnage: 2,746 tons (GT), 4,331 tons (DWT)
Installed power: 1600 HP
Speed: 15.31 knots

She left Rabaul, New Britain on 1 March 1943, as part of Operation 81, carrying a cargo of 252 troops, equipment, fuel, landing craft and ammunition for Lae, New Guinea.[1] The convoy was attacked by aircraft of the United States Army Air Forces and Royal Australian Air Force from 2 March 1943, known as the Battle of the Bismarck Sea. Aiyo Maru was bombed on 3 March and sank at 07°15'S., 148°30'E. Up to 323 soldiers and sailors were killed. [2]


  1. McAulay 1991, p. 39
  2. "Aiyo Maru (+1943)". Wrecksite. Retrieved 28 September 2016.


  • McAulay, Lex (1991). Battle of the Bismarck Sea. New York: St Martins Press. ISBN 0-312-05820-9. OCLC 23082610.
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