Wind tunnel and static thrust measurements on a four-blade constant chord propeller

Wind tunnel and static thrust measurements on a four-blade constant chord propeller

Wickens, R.H.

National Research Council Canada, National Aeronautical Establishment, Aerodynamics Section

1960-10-20

Experiments have been conducted in order to evaluate the cruising and static performance of a high solidity model propeller. The results of the investigation revealed that the propeller was not highly erficient in the cruise (ŋ = 0 .72 ) when compared with current full-scale designs. Static thrust data indicated high performance at small blade angles and low tip speeds. Measurements made in the wind tunnel of slipstream total pressure and flow rotation indicated evidence of tip stall and significant slipstream rotation. A simple theory for the calculation of slipstream flow angle shows fair agreement with experiment.

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National Research Council Canada

Campus only

National Research Council Aeronautical Report LR 291; NRC No. 6079

Aerospace Engineering Reports

report

(c) 1960 National Research Council Canada