CUVX Design Report - the AOE home page - Virginia Tech

CUVX Design – VT Team 2 Page 624.4.2 PropulsionA five-bladed fixed-pitch propeller design is used. The largest practical propeller diameter (5m) is selected formaximum efficiency. The ANALYTIC2 method, based on empirical Gawn-series correlations of Levedahl, is usedfor the propeller performance calculations. Propeller calculations are shown in Figure 55 and Figure 56. Cavitationperformance is predicted using the Keller criterion. The BAR for this propeller is equal to 0.94, greater than theminimum required to minimize cavitation at endurance speed (0.72).Figure 55. Endurance Propulsion Calculation