drFink222 160 points161 points 9 months ago

Yes, they would drone on during normal flight. Although, the volume and pitch would increase during the course of a dive-bomb run because of the increase in speed, as well as the Doppler effect.

Later models had a switch to turn them on and off.

you_got_fragged 6 points7 points 9 months ago

how does the switch turn it off?

Bojangly717 20 points21 points 9 months ago

It's just a fan that air flows over so probably just adjusts a cover or retracts them.

SnezhniyBars 16 points17 points 9 months ago

I think it’s more likely that the fan or chopper assembly had a brake that the switch engaged.

Edit: turns out it was clutch driven.