The HYDRAQUAD 4.73 has been developed to solve the vibration problems encountered in large pleasure craft when fitted with today’s high horsepower engines. The four blade design gives this finely engineered propeller the acceleration of a 3 blade propeller. The HYDRAQUAD 4.73 is offered in high tensile manganese bronze or nickel aluminium bronze and should be ordered with 1’’ less pitch than the equivalent 3 blade propeller to maintain the same engine loading. It can also be “cupped” on the trailing edge.
