- BYMS class minesweeper
The BYMS class was a class of wooden motor minesweepers, part of the US Navy YMS Yard class minesweepers. 150 ships destined for UK were launched from 1941 to 1943.
The initial 80 ships were ordered by the U.S. Navy specifically for transfer to the United Kingdom under the
Lend-Lease Programme. On transfer to Britain, BYMS-1 to BYMS-80 were assigned the Britishpennant number s BYMS-2001 to BYMS-2080. Names were not assigned to the class members.A further 53 BYMS bore hull numbers from 137 to 284. These were originally built for the U.S. Navy as part of the YMS class and transferred to Britain on, or shortly after, completion. On the
Navy List they were designated BYMS, with their original U.S. Navy numbers. The remaining 17 BYMS vessels were delivered in a final batch.Calypso
Jacques Cousteau 's well-known ship "Calypso" was originally built by the Ballard Marine Railway Company ofSeattle ,Washington , USA. She was a BYMS Mark 1 Class Motor Minesweeper, laid down on12 August 1941 with the yard designation BYMS-26 and launched on21 March 1942 . She was commissioned into the Royal Navy in February 1943 as HMS "J-826" and assigned to active service in theMediterranean Sea , redesignated as BYMS-2026 in 1944, laid up atMalta and finally struck from theNaval Register in 1947.ee also
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YMS-1 class minesweeper External links
* [http://www.ussyms425.com/minewar.htm BYMS class brief history]
* [http://www.navsource.org/archives/11/19idx.htm YMS/BYMS class ships]
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