Wind-tunnel measurements of wing-canard interference and a comparison with various theoriesWind-tunnel tests and analyses of the aerodynamics of wing-canard combinations for low speed applications are presented. Systematic tests are conducted in a 7 x 10 wind tunnel to explore various combinations of wing-canard vertical and horizontal positioning. The goals of the tests are (1) to investigate potential improved stalling characteristics over conventional tail-aft configurations, (2) to investigate the existence of a lift coefficient advantage, and (3) to determine induced drag levels. The measurements obtained are compared with calculations made using the Prandtl-Munk theory, and with a vortex-lattice panel code. Results indicate that the panel code gives excellent results for lift and induced drag at moderate lift coefficient, whereas Prandtl-Munk theory gives conservative results for induced drag. The application is a light transport aircraft used for short-haul operations.
Document ID
19810058335
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Feistel, T. W. (NASA Ames Research Center Moffett Field, CA, United States)
Corsiglia, V. R. (NASA Ames Research Center Moffett Field, CA, United States)
Levin, D. B. (NASA Ames Research Center Large Scale Aerodynamics Branch, Moffett Field, CA, United States)