YMS379 1945
| Name | No | Builder | Laid down | Launched | Comm | Fate |
| NYMS247 (ex-YMS247), 1946- Vinstra | 1950- M317 | Weaver, Orange, USA | 5/1942 | 14/10/1942 | 5/1943 // 5/1945 | stricken 1959 |
| NYMS305 (ex-YMS305), 1946- Gaula | 1950- M318 | Rice Bros, E. Boothbay, USA | 7/1942 | 30/9/1943 | 11/1943 // 5/1945 | stricken 6/1963 |
| NYMS377 (ex-YMS377), 1946- Driva | 1950- M319 | Greenport Basin, USA | 2/1943 | 3/4/1943 | 8/1943 // 3/1945 | stricken 1961 |
| NYMS379 (ex-YMS379), 1946- Alta | 1950- M320 | Greenport Basin, USA | 3/1943 | 29/5/1943 | 9/1943 // 3/1945 | stricken 1959 |
| NYMS380 (ex-YMS380), 1946- Vorma | 1950- M321 | Greenport Basin, USA | 4/1943 | 29/5/1943 | 9/1943 // 3/1945 | stricken 1959 |
| NYMS381 (ex-YMS381), 1946- Begna | 1950- M322 | Greenport Basin, USA | 5/1943 | 17/7/1943 | 10/1943 // 3/1945 | stricken 1961 |
| NYMS382 (ex-YMS382) | Greenport Basin, USA | 6/1943 | 21/8/1943 | 11/1943 // 3/1945 | sunk 7/5/1945 | |
| NYMS406 (ex-YMS406), 1946- Rana | 1950- M330 | Henry C. Grebe, Chicago, USA | 1/1943 | 6/9/1943 | 11/1943 // 5/1945 | stricken 3/1962 |
|
Displacement standard, t |
270 |
|
Displacement full, t |
320 |
|
Length, m |
39.6 wl 41.5 oa |
|
Breadth, m |
7.47 |
|
Draught, m |
2.36 full load |
|
No of shafts |
2 |
|
Machinery |
2 diesels |
|
Power, h. p. |
800 |
|
Max speed, kts |
14 |
|
Fuel, t |
diesel oil |
| Endurance, nm (kts) |
2000 (12) |
|
Armament |
1 x 1 - 76/50 Mk 10/19/20/21, 2 x 1 - 20/70 Oerlikon, 2 DCT, 2 DCR, sweeps (inc magnetic and acoustic) |
|
Sensors |
presumably SF or SO or SU radar |
| Complement |
60 |
Ship project history: Designing of minesweeper for protection of bases against mine danger was started after occurrence of 105-ft minesweeping boat in Britain. This ship has made good impression upon Americans, first of all by construction simplicity and cheapness. It has been decided to create for the USN the similar ship which can be built in big numbers by practically any small shipbuilder. First time they wished to built minesweeper in hull of 110-ft SC, however from similar thought rejected because of impossibility to place a diesel-generator necessary for magnetic sweep. The hull should be projected anew. For raise of seaworthiness short forecastle was provided. As well as in a case with SC, wood was chosen as construction material for building depreciation.
Modernizations: None.
Naval service: NYMS-382 was sunk at Cherbourg 7/5/1945 by German submarine U1023.
Alta 1949
© Ivan Gogin, 2010