A relatively new innovation in the propeller industry, this type of prop are now standard equipment on luxury motor yachts where low noise and smooth operation are an essential feature demanded by today’s more sophisticated owners. Particular care must be taken when designing this type of propeller to achieve the correct balance between the sectional thickness and the degree of skew. The HYDRASKEW 3.73 can be manufactured from either high tensile manganese bronze or nickel aluminium bronze.