ABSTRACT
Apparatus has been devised to record the principal parameters of the flight performance of tethered fruit-flies in a wind tunnel.
Typically these flies achieve level flight (lift = weight) at 200 cm./sec. and a body angle of + 10°. Lift varies directly with body angle except at very high angles; the stroke parameters are invariant with body angle.
Evidence is presented suggesting that these measurements are applicable to free flight.
The adaptive significance of the absence of a ‘lift-control’reaction’ in fruit-flies is discussed.
Copyright © 1966 The Company of Biologists Ltd.
1966
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