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.
Aeroplanes have, in the past, been built with a stabilizing surface in front of the main surface instead of at the rear of it.
These stabilizing movements are taking place all the time, even though imperceptible to the pilot.
The work is shown passing beneath an old timber-crib bulkhead, used for stabilizing the shoreline.