Alfonso XII-class cruiser
| Reina Mercedes | |
| Class overview | |
|---|---|
| Name | Alfonso XII class | 
| Builders | Cartagena and Ferrol, Spain | 
| Operators | Spanish Navy | 
| Built | 1881–1891 | 
| In commission | 1891–1900 | 
| Planned | 3 | 
| Completed | 3 | 
| Lost | 2 | 
| Retired | 1 | 
| General characteristics | |
| Type | Unprotected cruiser | 
| Displacement | 3,042 tons | 
| Length | 278 ft (85 m) | 
| Beam | 43 ft (13 m) | 
| Draft | 20 ft 0 in (6.10 m) maximum | 
| Speed | 17 kn (31 km/h) | 
| Endurance | 
 | 
| Complement | 370 | 
| Armament | 
 | 
The Alfonso XII class of unprotected cruisers was a series of three ships built during the 1880s for service with the Spanish Navy. They were named for a Spanish king and two Spanish queens.