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| Names | Builders | Completed | Losses | Transfers | Discarding |
|---|---|---|---|---|---|
M48 Río Tambre M49 Río Órbigo M50 Río Jándula M51 Río Jallas M52 Río Saja M53 Río Navia M57 Río Lea M58 Río Sella |
Armon, Vigo: M48-53, 57 |
2011: M48-50 2014: M51-53 2016: M57 2018: M58 |
none |
none |
in service (2019): M48-53, 57, 58 |
| Displacement standard, t | |
|---|---|
| Displacement full, t | |
| Length, m | 21.2 |
| Breadth, m | 5.50 |
| Draught, m | 1.51 |
| No of shafts | 2 waterjets |
| Machinery | 2 diesels |
| Power, h. p. | |
| Max speed, kts | |
| Fuel, t | diesel oil |
| Endurance, nm(kts) | |
| Armament | |
| Electronic equipment | radar |
| Complement |
Alusafe 2100 design.
None.
No significant events.

