“Ictineo II” Submarine Model

Ictineo II was the first combustion engine-driven submarine, propelled by an early form of air-independent propulsion.Ictineo II was launched on 2 October 1864 by Spanish inventor Narcis Monturiol Estarriol as an improved version of Ictineo I. It was not until the 1940s, that smilar principles were used for propulsion.