Early studies of powered-lift STOL concepts indicated that a basic problem of aircraft incorporating such concepts would be a serious adverse ground effect on lift. Experience to date with actual powered-lift STOL aircraft, however, has not borne out this concern. This apparent disagreement is examined and recent research data are used to help explain some of the differences observed. Analysis indicates that most of the disagreement can be attributed to the use of wind tunnel data that were not directly applicable to the airplane because the model did not properly represent some of the design features and operating conditions of the airplane.


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    Title :

    Recent research on powered-lift STOL ground effects


    Contributors:

    Conference:

    V/STOL Conference ; 1977 ; Palo Alto, CA


    Publication date :

    1977-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Recent research on powered-lift STOL ground effects

    CAMPBELL, J. / HASSELL, JR., J. / THOMAS, J. | AIAA | 1977


    Ground Effects on Lift for Turbofan Powered-Lift STOL Aircraft

    John P. Campbell / James L. Hassel James L. Thomas | AIAA | 1978