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Fig. 5. Summary plots of airspeed (A), sinking speed (B) and horizontal speed (C)
vs time. Each box represents the standard quartiles of the pooled
distribution of all 14 trajectories at each time interval. Error bars
represent 10th and 90th percentiles, respectively. All speeds increased early
in the trajectory. Airspeed and sinking speed leveled off after about 1 s. The
horizontal speed increased throughout. Note the temporary decrease in variance
near the transition points (indicating the end of the initial acceleration) in
each speed plot (arrows).