Early in this decade three model VTOL lift fan studies were conducted in the NASA Lewis Research Center's 9- by 15-foot V/STOL wind tunnel. The first experiment consisted of crossflow tests of a 15-inch diameter fan installed in a two-dimensional wing. The wing was then used for a study of installation effects on lift fan performance. The model tested consisted of three 5.5-inch diameter tip-turbine driven model VTOL lift fans mounted chord-wise in the two-dimensional wing to simulate a pod-type array. For the third program, a pod was attached to the wing, and an investigation was conducted of the effect of design tip speed on the aerodynamic performance and noise of a 15-inch diameter lift fan-in-pod under static and crossflow conditions.


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    Title :

    Summary of model VTOL lift fan tests conducted at NASA Lewis Research Center


    Contributors:

    Conference:

    U.S. Naval Air Systems Command, Workshop on Prediction Methods for Jet V/STOL Propulsion Aerodynamics ; 1975 ; Arlington, VA


    Publication date :

    1975-07-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English