SLENDER WING ROCK REVISITED

Analysis of experimental results for slender delta wings reveals that asymmetric liftoff of the leading-edge vortices on slender delta wings does not start the wing rock, although it is responsible for the larg e limit cycle amplitude observed in experiments. As a consequence, the interaction of slender wing rock does not depend upon the interaction between the two leading-edge vortices, but can be generated by one wi ng half by itself, making slender wing rock more likely to occur on hi gh agility aircraft than previously thought.