Regarding my comment about retreating blade stall it is the way they describe the stalling of the blade and how it drops over the tail. Can you imagine the blade dropping down over the tail
when the tip speed is around 600 feet per second and then rising back over the nose and then dropping over the tail once again. Can you imagine the vibratory forceds that would accompany this action. The entire scenario no matter what type of helicopter you fly the blade does no stall like a fixed wing wing. Now if you want to open this can of worms, I will start a new thread to explain my views on this subject.
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The Cat