Ictíneo II
| Ictíneo II replica | |
| Class overview | |
|---|---|
| Name | Ictíneo II | 
| Builders | La Navegación Submarina, | 
| Operators | Narciso Monturiol | 
| Preceded by | Ictíneo I | 
| In service | 20 May 1865 to Dec 1867 | 
| Completed | 1 | 
| Retired | 1 | 
| General characteristics | |
| Class & type | Submarine | 
| Tonnage | 46 t (45 long tons; 51 short tons) | 
| Length | 14 m (45 ft 11 in) (light hull) | 
| Beam | 2 m (6 ft 7 in) (light hull) | 
| Height | 3 m (9 ft 10 in) (light hull) | 
| Installed power | Air independent steam engine submerged; coal powered steam engine surfaced | 
| Propulsion | Screw propeller | 
| Speed | 4.5 knots surfaced | 
| Endurance | Tested to 7 hours submerged | 
| Test depth | 30 m (98 ft) | 
Ictíneo II was a pioneering submarine. Its launching took place in the Port of Barcelona on October 2, 1864 by the Spanish engineer Narcis Monturiol and it was the first air independent and combustion powered submarine and the first submarine to overcome the basic problems of machine powered underwater navigation.