Ictíneo II

Ictíneo II was a pioneering submarine launched in 1864 by the Spanish engineer Narciso 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.

Ictíneo II replica
Class overview
NameIctíneo II
BuildersLa Navegación Submarina,
OperatorsNarciso Monturiol
Preceded byIctíneo I
In service20 May 1865 to Dec 1867
Completed1
Retired1
General characteristics
Class and typeSubmarine
Tonnage46 t (45 long tons; 51 short tons)
Length14 m (45 ft 11 in) (light hull)
Beam2 m (6 ft 7 in) (light hull)
Height3 m (9 ft 10 in) (light hull)
Installed powerAir independent steam engine submerged; coal powered steam engine surfaced
PropulsionScrew propeller
Speed4.5 knots surfaced
EnduranceTested to 7 hours submerged
Test depth30 m (98 ft)
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