Propeller for BOW125/130/160Propeller 6 blade, diameter 246mm, for 125/130/160 kgf bow thrusters. Set includes all mounting hardware for propeller. nWorking in close collaboration with the Maritime Institute Netherlands (MARIN), the world-famous hydrodynamic laboratory, VETUS has optimized the performance of its thrusters. This has been achieved by utilizing a unique propeller blade profile, which creates little or no cavitation.nAs cavitation produces unwanted noise, this new blade design offers a major reduction in the operating sound levels for VETUS bow thrusters. Moreover, the application of this propeller has reduced the current consumption by up to 10%.*Zinc sold separately.