On Sep 7, 1776, David Bushnell’s American Turtle conducted the world’s first submarine assault. Towed into position and manually cranked forward, it failed to attach an explosive charge to the HMS Eagle, resulting in mission failure.

On Sep 7, 1776, David Bushnell’s American Turtle conducted the world’s first submarine assault. Towed into position and manually cranked forward, it failed to attach an explosive charge to the HMS Eagle, resulting in mission failure.

by Learn_Something_Cool