French submarine Korrigan
Korrigan was one of four s built for the French Navy at the beginning of the 20th century.
Design and description
Derived from the by Gabriel Maugas, the Farfadets were single-hulled, and powered by electric motors only, limiting their range and surface performance compared to the contemporary Sirène class. However they had variable-pitch propellers, developed by Maugas, obviating the need for a reversing engine.The boats displaced on the surface and submerged. They had an overall length of, a beam of, and a draft of. The crew of all of the submarines numbered 2 officers and 12 enlisted men. The boats were powered by a pair of Sautter-Harlé electric motors providing a total of, both driving the single propeller shaft. The boats were fitted with side-thrusting propellers at the stern to assist in steering. They could reach a maximum speed of on the surface and underwater. The Farfadet class had a surface endurance of at and a submerged endurance of at.
The boats were armed with four external Tissier torpedo launchers, two aimed forward and two aimed to the rear.