Wind tunnel experiments to assess the effect of back-mounted radio transmitters on bird body drag

Journal of Experimental Biology
3644_Obrecht.pdf
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Abstract

The aerodynamic drag of bird bodies was measured in a wind tunnel, with and without back-mounted dummy radio transmitters. Flight performance estimates indicate that the drag of a large transmitter can cause a substantial reduction of a migrant's range, that is, the distance it can cover in non-stop flight. The drag of the transmitter can be reduced by arranging the components in an elongated shape, so minimizing the frontal area. The addition of a rounded fairing to the front end, and a pointed fairing behind, was found to reduce the drag of the transmitter by about onethird, as compared with an unfaired rectangular box.
Publication type Article
Publication Subtype Journal Article
Title Wind tunnel experiments to assess the effect of back-mounted radio transmitters on bird body drag
Series title Journal of Experimental Biology
Volume 135
Year Published 1988
Language English
Contributing office(s) Patuxent Wildlife Research Center
Description 265-273
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Experimental Biology
First page 265
Last page 273
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