Figure 23 in Three-dimensional geometry of a pterosaur wing skeleton, and its implications for aerial and terrestrial locomotion

Figure 23. Methods of changing the angle of attack of the inner wing. A, left lateral view of Anhanguera configured as in Fig. 18. The broken line indicates the chord line. The angle of attack of the section is zero. B, as in (A), but with the left leg depressed at the hip by 30°. The geometric angle of attack a is indicated. C, as in (A), but with the leg supinated at the hip by 30°. The leg movements shown in (B) and (C) increase both the angle of attack and the camber of the inner wing.