Mighty gem,
I was not saying that the fenestrom stall was a result of drive failure; I was saying that the initial impression that that might have been the cause was dispelled by the subsequent pull up. ie If the initial problem was loss of TRE, this would have been solved by the forced stopping of rotation by the impact with the wet stuff.
I was puzzled by the fact that the fenestrom ws still rotating during the subsequent loss of control, which lends credence to the servo answers. However, surely part of the certification is that such failures are controllable by the average line joe, and do not require super-human strength to counteract?
I guess that if we ditch in a Dauphin we don't need to wait 7 seconds for the rotors to stop turning? Nice design touch of the frogs that; frangible main rotors.