Support for this research was provided by the ``Consortium on Cavitation Performance of High Speed Propulsors'' with the following members; DTMB, OMC, Volvo-Penta, IHI, Daewoo, El Pardo MB, HSVA, KaMeWa, Rolla, Sulzer-Escher Wyss, Hyundai, Wärtsilä, Ulstein, and Michigan Wheel.