USS YMS-324 in San Francisco Bay, c. 1945–46 |
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| Class overview | |
|---|---|
| Name: | YMS-1 |
| Builders: | 35 yacht builders[1] |
| Operators: | United States Navy Royal Navy |
| Subclasses: | YMS-136, YMS-446 |
| In commission: | about March 1942[1] - 13 December 1957[2] |
| Completed: | 481[1] |
| Cancelled: | YMS-482 – YMS-500 |
| Active: | 0 |
| Lost: | 32[3] |
| General characteristics | |
| Type: | minesweeper |
| Displacement: | 270 tons |
| Length: | 136 ft (41 m) |
| Beam: | 24 ft 6 in (7.47 m) |
| Draft: | 8 ft (2.4 m) |
| Propulsion: | 2 × 880 bhp General Motors 8-268A diesel engines 2 shafts |
| Speed: | 15 knots (28 km/h) |
| Complement: | 32 |
| Armament: | 1 × 3"/50 caliber gun mount 2 × 20 mm guns 2 × depth charge projectors |
The YMS-1 class of auxiliary motor minesweepers was established with the laying down of YMS-1 on 4 March 1941.
Characteristics of the class: Displacement 270 t.; Length 136'; Beam 24' 6"; Draft 8'; Speed 15 kts; Complement 32; Armament one single 3"/50 gun mount, two 20mm, two dcp; Propulsion two 1,000shp General Motors diesel engines, two shafts.
Contents |
There were two mostly cosmetic sub-types of the class, sometimes referred to as classes themselves
This subclass was identical but had only one stack rather than two, and consisted of YMSs 135–445, 480, and 481.
This subclass was also identical but had no stacks, and consisted of YMSs 446–479