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Figure 3


Fig. 3. Relationship between the angular speed ({omega}A) while corkscrewing necessary to execute various numbers of complete spins (N) over a range of swimming speeds (vs). The dotted diagonal lines indicate a realistic approximation of the spinning performance of the dolphin, where the angular speed is directly proportional to the swim speed (i.e. {omega}A={theta}Rvs). The black dotted line is based on the observation of spinning rate from Lagenorhynchus obliquidens of {theta}R=1.5 rad m-1. The red dotted line is for {theta}R=3 rad m-1 in order to achieve seven aerial spins, which is the maximum number of spins observed for Stenella longirostris (Norris et al., 1994).





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