That would be cool.
but how do they do that
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=34&t=97151
if your asking about how the RC's fly inverted,
the blade rotates and creates lift just like a real one.
now for inverted flight, the rc rolls up-side down and cuts the throttle on the remote. this rotates the blade to a point where it actually is creating "negative" lift.

