The progress is covered of the NASA sponsored Propfan Test Assessment (PTA) flight test program. In PTA, a 9 ft. diameter propfan was installed on the left wing of a Gulfstream GII executive jet and is undergoing extensive flight testing to evaluate propfan structural integrity, near and far field noise, and cabin interior noise characteristics. This research testing includes variations in propeller tip speed and power loading, nacelle tilt angle, and aircraft Mach number and altitude. As a result, extensive parametric data will be obtained to verify and improve computer codes for predicting propfan aeroelastic, aerodynamic, and aeroacoustic characteristics. Over 600 measurements are being recorded for each of approx. 600 flight test conditions.


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    Title :

    Overview of NASA PTA Propfan Flight Test Program


    Contributors:

    Publication date :

    1990


    Size :

    20 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English







    Propfan Test Assessment (PTA): Flight Test Report

    B. H. Little / H. W. Bartel / N. N. Reddy et al. | NTIS | 1989


    Propfan Test Assessment (PTA): Flight test report

    Little, B. H. / Bartel, H. W. / Reddy, N. N. et al. | NTRS | 1989