Using a bio-inspired robot with multiple passive tails I demonstrate herein the relationship
between maneuverability and passive appendages. I found that the allowable rotation angle, relative
to the main body, of the passive tails corresponds to an increase in maneuverability. Using panel
method simulations I determined that the increase in maneuverability was directly related to the
change in hydrodynamic moment caused by modulating the circulation sign and location of the shed
vortex wake. The identication of this hydrodynamic benet generalizes the results and applies to
a wide range of robots that utilize vortex shedding through tail
apping or body undulations to
produce locomotion.