Figure 3: Trajectory envelopes.
From: Aerodynamic performance of the feathered dinosaur Microraptor and the evolution of feathered flight
The results in Fig. 2 are for one specific centre of gravity location; therefore, the effect of small variations in location were examined. (a) Range of centres of gravity considered. (b) Effect of changing the centre of gravity. Changing the location of the centre of gravity changes the shape of the pitching moment curves. (c) Trajectory envelope for legs sprawled. Dark-shaded area indicates stable glide. Dark line shows the best-performing glide trajectory, indicated by the point in inset. (d) Trajectory envelope for legs down. Dark-shaded area indicates stable glide.
