On Propeller Blade Thickness and Stud Diameter

Abstract

An investigation on actual propeller with different particulars has been carried out by a committee in Kansai Society of Naval Architects. Results are obtained about the standard stress and about the blade thickness margin left for N.K. rule requirement. Table 1 shows the summary of the results, blade thickness being measured at 0.25% of the radius. As for the stud diameter, 2 to 10% margin left for the N.K. rule requirement may be recommended based on the past results.