YMS-1-class minesweeper

USS YMS-324 in San Francisco Bay, c. 1945–46
Class overview
NameYMS-1
Builders35 yacht builders[1]
Operators
Succeeded byAtada class (Japan)
SubclassesYMS-136, YMS-446
In commissionabout March 1942[1] – 13 December 1957[2]
Completed481[1]
CancelledYMS-482 – YMS-500
Active0
Lost32[3]
General characteristics
TypeMinesweeper
Displacement270 tons
Length136 ft (41 m)
Beam24 ft 6 in (7.47 m)
Draft8 ft (2.4 m)
Propulsion
Speed15 knots (28 km/h)
Complement32
Armament

The YMS-1 class of auxiliary motor minesweepers was established with the laying down of YMS-1 on 4 March 1941. Some were later transferred to the United Kingdom as part of the World War II Lend-Lease pact between the two nations. One ship eventually made its way into the Royal Canadian Navy postwar.

  1. ^ a b c Priolo, Gary P. (2006). "Auxiliary Motor Minesweeper (YMS), British Motor Minesweeper (BYMS) Index". NavSource Online. NavSource Naval History. Retrieved 20 December 2007.
  2. ^ Radigan, Joseph M. (2006). "Ruff (MSC[O] 54), ex-AMS-54, ex-YMS-327". NavSource Online. NavSource Naval History. Retrieved 20 December 2007.
  3. ^ For both YMS-1 and BYMS classes a total 40 were lost. Of those 40, 32 were YMS-1 class. (See: "YMS class Minesweepers". Uboat.net. Retrieved 20 December 2007.)