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Original Message The only reason VRS exists is the cavitation of the air mass under the helicopter rotor system. That is why you fly out of it. #1 in my earlier post. I.E. engine developing POWER to the rotor system creates cavitation. If you are flying forward off of the cavitated air and you have a tailwind it keeps the cavitated air under the rotor system longer. I don't know how to explain it any simpler. Best methods are knowledge of the problem and avoidance. |