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Keywords: gliding performance
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Journal Articles
J Exp Biol (1990) 149 (1): 469–489.
Published: 1 March 1990
... falcon ( Falco jugger ) and a black vulture ( Coragyps atratus ). A single polar curve relating lift coefficients to minimum profile drag coefficients can predict the maximum gliding performance of all three birds when used with a mathematical model for gliding flight 4. The parasite drag values...
Journal Articles
J Exp Biol (1990) 149 (1): 449–468.
Published: 1 March 1990
... it is not associated with a significant lift component. Key words: bird flight, drag coefficient, gliding performance, Harris' hawk, parasite drag, bolar curve, wind tunnel. 450 V. A . TUCKER Recent studies of gliding flight (Tucker, 1987, 1988; Tucker and Heine, 1990) use body drag as one of the terms...
Journal Articles
J Exp Biol (1988) 140 (1): 325–344.
Published: 1 November 1988
... fall in an area (the performance area) because the bird adjusts its body configuration in flight to achieve a range of sinking speeds at each air speed (Tucker, 1987). The bird can maximize its gliding performance by gliding on the maximum performance curve - the boundary of the performance area...
Journal Articles
J Exp Biol (1987) 133 (1): 33–58.
Published: 1 November 1987
...VANCE A. TUCKER The equilibrium gliding performance of a bird is described by the relationship between sinking speed (V 8 ) and air speed (V). When V 9 is plotted against V, the points fall in a ‘performance area’ because the wing span is changed during gliding. The lowest V 3 for each V...