Siméon Bourgois

Siméon Bourgois was a 19th-century French Navy vice-admiral who was especially involved in the development of early submarines.

He held the rank of captain when he presented together with Charles Brun[1] his project for the submarine Plongeur in 1858, and when he created the plans in 1860, under the code name Q00.

Plongeur was the world's first submarine to be propelled by mechanical (by opposition to human) power.

He was a pioneer in the development of the ship screw in France, and became the president of the first Commission for Submarine Defense.

[2] Bourgois launched in 1872 the first program to develop torpedo boats in the French Navy.