iopscience.iop.org: A fast-starting mechanical fish that accelerates at 40 m s^ā2 Citat: "...Efficiency is estimated based on the transfer of energy from elastic potential to kinetic swimming energy. The fish beam placed in the 23 cm curvature has about 3.8 J of energy, and an error of 1 cm in either direction does not change the stored energy dramatically: a curvature of 22 cm corresponds to 3.5 J of stored energy and a curvature of 24 cm, to 4.2 J. When released, the model accelerates to a mean velocity of around 1.2 m sā1. The energy transferred to kinetic energy is thus approximately 0.4 J, and the efficiency is approximately 10%. The fast-start efficiency for live fish, as noted previously, is in the range of 16ā39%..."
