V-22 ≠ H-53E
John Dixson is absolutely correct. One cannot compare the V-22 to the H-53E. One of my first test flights in the H-53E was a pitot system calibration flight. There were two end points to the test, a 40 KIAS autorotation and a Vne (170KIAS) autorotation. At 40 KIAS and the VSI pegged at 6000 FPM rate of descent our recovery was accomplished with collect alone. To quote the Chief Program Pilot (Frank Tefft) when he instructed me to just increase the collective, he said “that the machine wouldn’t like it but it could take it.” Sure enough, 13,000m ESHP dug us out of the descent with no signs of VRS. Later in my career I was provided with an opportunity to fly in an H-53E with Brooks Gruber. He was a consuement professional and a Great pilot. If there were any mistakes made by the flight crew, it was assuming that the V-22 would perform similarly to the H-53E.