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On the Angle of Incidence in Soaring Flight

Published online by Cambridge University Press:  24 October 2008

E. H. Hankin  and
J. D. North
E. H. Hankin
Affiliation:
Chief Aeronautical Engineer to Messrs Boulton and Paul, Norwich.
J. D. North
Affiliation:
Chief Aeronautical Engineer to Messrs Boulton and Paul, Norwich.
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Extract

Perhaps the most peculiar fact of observation yet recorded about the wing disposition of soaring birds is the apparent large negative angle of incidence shown by the wings of vultures when in fast horizontal flight.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 22 , Issue 2 , May 1924 , pp. 186 - 188
Copyright
Copyright © Cambridge Philosophical Society 1924

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References

* “Meteorology and the non-flapping flight of tropical birds,” Proc. Camb. Phil. Soc. 21, Pt 4, 1922, p. 363.Google Scholar

* “On the flight of sea gulls,” Aeronautical Journal, 19, 07–09 1915, p. 90.Google Scholar The two wing-tip dispositions are shown in Figs. 3 A and 3 B of that paper.

† Animal Flight, p. 40.Google Scholar

† Ibid., p. 88.