coriolis effect; the acceleration of the blade that flaps up and deceleration of the blade that flaps down. simple aerodynamics.
hookes joint effect; the theoretical point about which the blades of a multi bladed fully articulated rotor head rotate in forward flight due to lead and lag. simple aerodynamics.
lead and lag, (hunting); the tendency for a rotor blade to hunt for the centre of pressure of the blade, forward on the advancing blade, (lead), and rearward on the retreating blade, (lag). simple aerodynamics.
lu, you show your ignorance when you say that the us calls coriolis effect what the rest of the world calls hookes joint effect.
i find it hard to believe that you make it sound all so difficult.
it's basic aerodynamics.
