Figure 16.

Chord profiles of the body change substantially with tail pitch. The chord profiles through (a) the body, tail and feet (sagittal section), and (b) midway along the wing (parasagittal section). Outlines are coloured for speed extremes (fastest: red dashed line; slowest: blue solid line). (i) T. alba (n = 15); (ii) S. aluco (n = 14); (iii) A. gentilis (n = 13). (a) Vertical grey dashed lines indicate body-to-tail transition. (b) Sample sizes are doubled as they show the left- and right-wing outlines. Wing sections are aligned to the chord line and scaled to chord length.