Air ejection from leading edge of airfoil used for controlled decrease of lift. Pneumatic-spoiler principle developed for equalizing lift on helicopter rotor blades. Also used to enhance aerodynamic control of short-fuselage or rudderless aircraft such as "flying-wing" airplanes. Leading-edge injection increases maneuverability of such high-performance fixed-wing aircraft as fighters.
Pneumatic Spoiler Controls Airfoil Lift
NASA Tech Briefs ; 15 , 11
1991-11-01
Miscellaneous
No indication
English