View source for SS Sin-ai Maru (1921)

{{Short description|Imperial Japanaese transport ship}}
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|Ship country=Japan
|Ship flag={{shipboxflag|Japan|army}}
|Ship name=*''Shin-ai Maru'' (1921-1938)
* ''Sin-ai Maru'' (1938-1943)
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|Ship owner=Kishimoto Kisen K.K.
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|Ship builder=Fujimagata Dockyard, [[Osaka]]
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|Ship launched=1921
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|Ship completed=March 1921
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|Ship fate=Sunk by aircraft on 3 March 1943 at 07°15'S, 148°30'E
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|Ship tonnage=*{{GRT|3,794}}
*{{NRT|2,305}}
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|Ship length={{convert|345|ft}}
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|Ship draught={{convert|29|ft}}
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|Ship power=342 NHP
|Ship propulsion=Triple expansion engines
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'''''Sin-ai Maru''''', also known as '''''Shin-ai Maru''''' was a 3,794 ton transport ship of the [[Imperial Japanese Army]] during [[World War II]].

Built by Fujimagata Dockyard, [[Osaka]] and launched in 1921 as ''Shin-ai Maru''.<ref>{{cite web |last = |first = |authorlink = |title = Lloyd's Register 1942-43 |publisher = plimsollshipdata |date = |url = https://plimsoll.southampton.gov.uk/shipdata/pdfs/42/42b0804.pdf | access-date = 14 September 2012}}</ref> She was renamed ''Sin-ai Maru'' in 1938.

She left [[Rabaul]], New Britain on 1 March 1943, as part of ''Operation 81'', carrying a cargo of troops, equipment, fuel, landing craft and ammunition for [[Lae]], New Guinea.<ref>{{harvnb|McAulay|1991|p=39}}</ref> 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]]. ''Sin-ai Maru'' was bombed on 3 March and sank at 07°15'S., 148°30'E.<br>
18 crew, 45 gunners and an unknown number of troops were KIA.<ref>{{cite web | title=Shinai Maru (+1943) | url=http://www.wrecksite.eu/wreck.aspx?138006|publisher=Wrecksite| access-date=2016-10-01 }}</ref>

==Notes==
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==References==
*{{cite book
 | last=McAulay
 | first=Lex
 | authorlink=
 | year=1991
 | title=Battle of the Bismarck Sea
 | publisher=St Martins Press
 | location=New York
 | isbn=0-312-05820-9
 | oclc=23082610
 }}

{{March 1943 shipwrecks}}

{{DEFAULTSORT:Sin-ai Maru}}
[[Category:1921 ships]]
[[Category:Ships built by Fujinagata Shipyards]]
[[Category:Maritime incidents in March 1943]]
[[Category:Ships sunk by Australian aircraft]]
[[Category:Ships sunk by US aircraft]]
[[Category:Shipwrecks in the Bismarck Sea]]