Measurement and improvement of the lateral agility of the F-18 Academic Article uri icon


  • THIS synoptic highlights parameters which affect the lateral agility of a modern fighter aircraft. This is accomplished using a generic, nonreal-time simulation of the F-18 to study lateral agility as measured by the time to roll through 90-deg metric, TTR90. Specific, simple modifications which improve the existing agility of this aircraft are shown, and are easily applicable to other aircraft. A sensitivity study on the effects of modified actuator rates and roll and yaw control powers, employed both singly and in combinations, demonstrate that a 10–30% improvement in lateral agility, as measured by the TTR90metric, can be achieved. Additionally, coordinating the wind axis roll acceleration by slowing the aileron input rate yields a further improvement in TTR90. This modification reduces adverse sideslip and improves the character of the roll response. © 1992 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

author list (cited authors)

  • Eggold, D. P., Valasek, J., & Downing, D. R.

citation count

  • 7

publication date

  • November 1993