How? A generator is a fuel-powered engine. Where would you have room to carry it? The batteries on a submarine are huge, and take a lot of charging. Battleships have auxiliary generators, but they're bigger than a sub is wide.
Basically, any auxiliary engine powerful enough to charge the batteries would be powerful enough to drive the sub. You'd be better off trying to rig a sail.
__________________
“Never do anything you can't take back.”
—Rocky Russo
|