To execute a banked turn from flying straight and level, the rocking wing worked moderately effectively, but when the aeroplane's lateral equilibrium had been compromised, tipping the rocking wing in the opposite direction to the down-going wing to right itself had a tendency to yaw the aircraft in that direction. In effect, the rocking wing did not fully assist in correcting conditions of instability since the pilot had no means with which to induce or correct a yawing motion. Another possible reason behind the rocking wing idea not progressing beyond Watson's experiments was that it could only be applied to relatively light and small aircraft.