Pitching Equilibrium, Wing Span and Tail Span in a Gliding Harris' Hawk, Parabuteo Unicinctus

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Pitching Equilibrium, Wing Span and Tail Span in a Gliding Harris' Hawk, Parabuteo Unicinctus

1. The centre of area of the wings of a Harris' hawk gliding freely in a wind tunnel moved forward 0.09 wing chord lengths when the hawk increased its wing span from 0.68 to 1.07 m. The movement of the centre of area probably produces a positive pitching moment that, if unopposed, would cause the bird's head to rise. The tail remained folded until wing span reached 87 % of maximum and then bega...

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ژورنال

عنوان ژورنال: Journal of Experimental Biology

سال: 1992

ISSN: 1477-9145,0022-0949

DOI: 10.1242/jeb.165.1.21