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Fig. 1. Positioning of accelerometers (rectangles) and differential pressure
transducers (circles) across (A) tail, (B) wing for acceleration-compensated
trials, and (C) the non-compensated 8-position map. Following convention we
code our feathers R for rectrices (tail feathers), P for primaries and S for
secondaries, with numbering for the wing feathers counted from the
primary/secondary boundary. The pressures measured at each of five positions
along the leading edge are taken as representative for the wing sections
demarcated by straight lines in C.