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Fig. 5. The locomotive force in (A) the horizontal and (B) the vertical directions.
Squares: calculated locomotive forces. Error bars indicate uncertainty from
measurement and evaluation. Solid line: spline fitting of the data. Note that
due to limitations on integration time, these plots are based on the first 400
ms of a 600 ms fin beat cycle. Adapted from Peng et al.
(Peng et al., 2007).