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ABSTRACT Angle of attack of a distal wing segment was estimated for forewings and hind-wings of locusts during constant lift at different body angles. At the middle of the downstroke the forewing angle of attack remained nearly constant, but the hindwing angle varied with the body angle. The results are consistent with earlier electro-physiological findings and emphasize that the twist parameter does not contribute by equal amounts to the mean wing twisting of the two pairs of wings. A qualitative model of the constant-lift reaction includes a factor for simultaneous correction of body pitch.
Gettrup et al. (Sun,) studied this question.