Ictíneo I
| Ictíneo I replica | |
| Class overview | |
|---|---|
| Name | Ictíneo I | 
| Builders | 
 | 
| Operators | Narcís Monturiol | 
| Succeeded by | Ictíneo II | 
| In service | 28 June 1859 to January 1862 | 
| Completed | 1 | 
| Lost | 1 | 
| General characteristics | |
| Class & type | Submarine | 
| Tonnage | 10 t (9.8 long tons; 11 short tons) | 
| Length | 
 | 
| Beam | 1 m (3 ft 3 in) (pressure hull) | 
| Height | 
 | 
| Installed power | Human muscle | 
| Propulsion | Hand crank propellers | 
| Endurance | 2 hours (submerged) | 
| Test depth | 50 m (160 ft) | 
Ictíneo I was a pioneering submarine constructed in Barcelona, Spain in 1858–1859 by engineer Narcís Monturiol.