Maybe he didn't let his stabilizing rotors have time to lock in.
If the stabilizing mechanisms were there, why not use them always?
Aeroplane—A power-driven aerofoil with stabilizing and controlling surfaces.
Stabilizing shaft, repeated Andy, memorizing, and the name of the airship painted on that big paddle is the Eagle.
Also a number of automatic balancing and stabilizing devices have been brought out.
It is therefore necessary to find a means of stabilizing the naturally unstable cambered surface.
For the sake of illustration, the stabilizing surface has been given an angle of incidence, and therefore has a lift and C.P.
These stabilizing movements are taking place all the time, even though imperceptible to the pilot.
Aeroplanes have, in the past, been built with a stabilizing surface in front of the main surface instead of at the rear of it.
The work is shown passing beneath an old timber-crib bulkhead, used for stabilizing the shoreline.