Crab,
I understand the process of extracting rotor energy by rapidly increasing collective pitch. The more rapid the NR droop, the greater the power extraction. Would you please explain at what point in the flyaway maneuver and over what time interval (seconds) the power extraction occurs. Am I correct in assuming that the collective pitch is initially lowered at the time of engine failure to contain the NR, then rapidly increased to droop the NR to 91% at some point thereafter when you are trading altitude for airspeed?
HT