Aerodynamic characteristics of a propeller powered high lift semispan wingAn experimental investigation was conducted on the engine/airframe integration aerodynamics for potential high-lift aircraft configurations. The model consisted of a semispan wing with a double-isolated flap system and a Krueger leading edge device. The advanced propeller and the powered nacelle were tested and aerodynamic characteristics of the combined system are presented. It was found that the lift coefficient of the powered wing could be increased by the propeller slipstream when the rotational speed was increased and high-lift devices were deployed. Moving the nacelle/propeller closer to the wing in the vertical direction indicated higher lift augmentation than a shift in the longitudinal direction. A pitch-down nacelle inclination enhanced the lift performance of the system much better than vertical and horizontal variation of the nacelle locations and showed that the powered wing can sustain higher angles of attack near maximum lift performance.
Document ID
19920043620
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Takallu, M. A. (Lockheed Engineering and Sciences Co. Hampton, VA, United States)
Gentry, G. L., Jr. (NASA Langley Research Center Hampton, VA, United States)