Originally Posted by
megan
"Tex" Johnston the 135/707 test pilot stated that if you allowed the side slip to reach 15° or more you will have lost control, we had a local military 707 doing asymmetric practice, went into a spin when the side slip became too great, flung off a number of engines, hit the ocean otherwise intact. Saw the aircraft fly over the house some 5 minutes before the accident and later observed it lying on the sea bed.
Thanks for the interesting info.
I do wonder if that is a separate lower speed VMC issue where asymmetric thrust resulted in a loss of directional control due to rudder authority capability being exceeded but fin structurally sound versus a higher speed Dutch Roll situation where aerodynamics creates yaw exceeding the fin structural capability. Either of which could lead to a result of yawing forces exceeding engine structural limits.