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Journal of Experimental Biology, Vol 65, Issue 2 459-470, Copyright © 1976 by Company of Biologists

JOURNAL ARTICLES

Aerodynamics of hovering flight in the long-eared bat Plecotus auritus

UM Norberg

Steady-state aerodynamic and momentum theories were used for calculations of the lift and drag coefficients of Plecotus auritus in hovering flight. The lift coefficient obtained varies between 3-1 and 6-4, and the drag coefficient between --5-0 and 10-5, for the possible assumptions regarding the effective angles of attack during the upstroke. This demonstrates that hovering flight in Plecotus auritus can not be explained by quasi-steady-state aerodynamics. Thus, non-steady-state aerodynamics must prevail.


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© The Company of Biologists Ltd 1976