I have a rather simple question just to "double check" if I understood blade flapping right. So, I understand that a helicopter, in forward flight faces an asymmetric lift. Blade flapping is there to compensate this.
As far as I understand this, the higher lift on one side leads the rotor blade to tilt upwards (aka flap) thereby also tilting the lift vector and decreasing its purely vertical component. It flaps just enough so that in total it creates a symmetric lift situation.
Is that correct? All of this happens just by the nature of it? The pilot or flight controller don't have to do anything here?
My doubt here is that, if I apply an axial force on a object that rotates around a centre, it will reach its maximum "tilt" or in this case flapping angle, only 90° after the force was applied. This seems to contradict my understanding of blade flapping. So that’s why I am confused.
Context: I am an aerospace engineer (with emphasis on space) who tries to learn more about helicopters. My curriculum didn’t contain anything about helicopters.