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YMS Class, U.S. Auxiliary Minesweepers


Photograph of YMS-class auxiliary minesweeper

Naval History and Heritage Command #NH 98999


Specifications:


Tonnage 320 tons displacement
Dimensions 136' by 24'6" by 6'1"
41.45m by 7.47m by 1.85m
Maximum speed       12 knots
Complement
33
Armament
1 3"/50 antiaircraft gun
2 20mm Oerlikon antiaircraft guns
2 depth charge projectors
Machinery
2-shaft General Motors 8-268A diesel (880 shp)
Production
561 from 1942-3-25.


Auxiliary Motor Minesweepers (YMS) were small wooden vessels equipped with gear for sweeping acoustic and magnetic mines in coastal waters. They were build in yacht yards and were not expected to operate except in proximity to their base. They were used to sweep mines laid by U-boats off the Atlantic coast, but later found a role sweeping Japanese mines in restricted waters of the southern and western Pacific.


References

Morison (1959)

Navsource.org (accessed 2011-4-2)



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