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Original Message Predictable outcome in an airplane is easier because you are working with a stable platform. Divergence will exist after a control input but if the condition is neutralized the tendency is to return to last known point of stability. In a helicopter you are always in a state of divergence. The pilot for the most part is the known point of stability without autopilots or stability augmentation systems. I don't know if the rotor blades could get to the tailboom in a true state of VRS because the rotor system would be in a positive G configuration. Extreme aft cyclic and unloading the rotor system at the same time might cause it but that would a totally out of character maneuver for VRS recovery. |