The default controls for helicopters is to not have cyclic left and right bound, but instead have Left Turn and Right Turn bound to the mouse.
This makes it very difficult to control helicopters because instead of controlling the cyclic with the mouse, you control the cyclic forward and backward with the mouse forward and backwards, but the pedals by moving the mouse left and right.
So I've unbound the Turn Left and Turn Right, and bound the cyclic left and cyclic right to the mouse left and right too, so that I can control the cyclic using the mouse and pedals using X and C.
However, this now makes it impossible to fly fixed wing aircrafts because they use Turn Left and Turn Right to turn.
So every time I want to switch between helicopters and fixed wing aircrafts I have to rebind my controls.