Sweet sound of a 20mm Hispano Cannon

[Sailor Steve]

Originally Posted by Oberon

I wonder how many other front line aircraft in WWII were hand-cranked.

Some of the US Navy's and Army's early radial-engined planes were. The crank doesn't turn the engine, but speeds up a big flywheel, the sound heard at the beginning of the video. A clutch is then engaged. In some old you can hear a quick descending whistling sound as the flywheel decelerates and the engine starts.

Oop! Found one!