A number of different control devices and techniques are evaluated to determine their suitability for increasing the short takeoff performance of a supersonic short-takeoff/vertical landing (STOVL) aircraft. Analysis was based on a rigid-body mathematical model of the General Dynamics E-7, a single engine configuration that utilizes ejectors and thrust deflection for propulsive lift. Alternatives investigated include increased static pitch, the addition of a close-coupled canard, use of boundary layer control to increase the takeoff lift coefficient, and the addition of a vectorable aft fan air nozzle. Other performance studies included the impact of individual E-7 features, the sensitivity to ejector performance, the effect of removing the afterburners, and a determination of optional takeoff and landing transition methods. The results pertain to both the E-7 and other configurations. Several alternatives were not as well suited to the E-7 characteristics as they would be to an alternative configuration, and vice versa. A large amount of supporting data for each analysis is included.
Parametric Study of Supersonic STOVL (Short-Takeoff/Vertical Landing) Flight Characteristics
1985
245 pages
Report
No indication
English
Aerodynamics , Aeronautics , Aircraft performance , Short takeoff aircraft , Supersonic aircraft , Parameter identification , Vertical landing , Aerodynamic coefficients , Boundary layer control , Canard configurations , Ejectors , General dynamics aircraft , Lift , Mathematical models , Single engine aircraft , Thrust vector control