Experimental performance and blade stresses measured on a three-bladed VTOL-type propeller tested in free air are presented. The isolated propeller was tested over ranges of prop speed, forward velocity, blade angle setting, and thrust axis to free-stream angle. Correlation with a theoretical method of predicting propeller performance and blade stresses was made. It was found that when the propeller was operating in a flight condition for which the theory was developed, correlation between theory and experiment was good. When the propeller was operating in a flight condition where very small positive or negative effective angles of attack were encountered, correlation between theory and experiment was poor. (Author)


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    Title :

    Performance and Stresses Obtained on an Isolated VTOL-Type Propeller Operating in Hovering, Transitional, and Axial Flight


    Contributors:

    Publication date :

    1967


    Size :

    97 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English