Nalón 1980
| Name | No | Yard No | Builder | Laid down | Launched | Comp | Fate |
| Nalón (ex-Oeillet) | M21, 1980- PVZ51, 1986- P51 | South Coast, Newport Beach, USA | 22.11.1952 | 2.1954 | patrol 1980, stricken 1993 | ||
| Llobregat (ex-Roselys) | M22 | South Coast, Newport Beach, USA | 25.7.1953 | 11.1954 | fire 24.4.1979, never repaired | ||
| Júcar | M23, 1980- M21 | Bellingham SY, USA | 6.1956 | stricken 12.2001 | |||
| Ulla | M24, 1980- PVZ52, 1986- P52 | Quincy Adams, Quincy, USA | 28.1.1956 | 7.1956 | patrol 1980, stricken 1993 | ||
| Miño | M25, 1980- PVZ23, 1984- M28 | Quincy Adams, Quincy, USA | 10.1956 | patrol 1980, minesweeper 1984, stricken 1999 | |||
| Ebro | M26, 1980- M22 | Bellingham SY, USA | 8.11.1957 | 12.1958 | stricken 2.2005 | ||
| Turia | M27, 1980- PVZ54, 1986- P54 | Hiltebrant, Kingston, USA | 14.7.1954 | 6.1955 | patrol 1980, stricken 1993 | ||
| Duero (ex-Spoonbill) | M28, 1980- M23 | Tampa Marine, Tampa, USA | 11/1953 | 3.8.1954 | 6.1955 // 1.1959 | stricken 1999 | |
| Sil (ex-Redwing) | M29, 1980- PVZ55, 1982- M27 | Tampa Marine, Tampa, USA | 7/1953 | 29.4.1954 | 1.1955 // 1.1959 | patrol 1980, minesweeper 1982, stricken 3.2003 | |
| Tajo | M30, 1980- M24 | Tampa Marine, Tampa, USA | 1.5.1958 | 7.1959 | stricken 12.2001 | ||
| Genil | M31, 1980- M25 | Tampa Marine, Tampa, USA | 8.8.1958 | 9.1959 | stricken 1.2004 | ||
| Odiel | M32, 1980- M26 | Tampa Marine, Tampa, USA | 3.9.1958 | 10.1959 | stricken 2.2005 |
|
Displacement standard, t |
360 |
|
Displacement full, t |
400 |
|
Length, m |
42.1 wl 44.3 oa |
|
Breadth, m |
8.10 |
|
Draught, m |
2.10 |
|
No of shafts |
2 |
|
Machinery |
2 General Motors diesels |
|
Power, h. p. |
M21-25, 27-29: 880 M26, 30-32: 1000 |
|
Max speed, kts |
M21-25, 27-29: 12 M26, 30-32: 12.5 |
|
Fuel, t |
diesel oil 25 |
|
Endurance, nm(kts) |
2500(10) |
|
Armament |
1 x 2 - 20/70 Mk 24, mechanical, acoustic, magnetic minesweeping gear |
|
Electronic equipment |
Decca TM626 or RM914 radar, UQS-1 sonar |
|
Complement |
39 |
Project history: USN Adjutant class coastal minesweepers. Duero and Sil were commissioned at first by USN.
Modernizations: None.
Naval service: No significant events.
Ebro 1974
Duero 1975
? Ivan Gogin, 2015