Figure 3.

Tail and caudal fin angle for two representative cases. Circles represent the measured angles; the black curve is a fitted sinusoidal curve for comparison; the dotted line is at zero; and the dot-dashed line is the angular misalignment, $\Delta {\theta }_T$ in (A) and $\Delta {\theta }_C$ in (B). (A) Tail angle, ${\theta }_T$, for case 4. (B) Caudal fin angle, ${\theta }_C$, for case 1.