Buffet boundaries, buffeting-load increments for the stabilizers and elevators, and buffeting bending-moment increments for the stabilizers and wings as measured in gradual maneuvers for a jet-powered bomber airplane are presented. The buffeting-load increments were determined from strain-gage measurements at the roots or hinge supports of the various surfaces considered. The Mach numbers of the tests ranged from 0.19 to 0.78 at altitudes close to 30,000 feet. The predominant buffet frequencies were close to the natural frequencies of the structural components. The buffeting-load data, when extrapolated to low-altitude conditions, indicated loads on the elevators and stabilizers near the design limit loads. When the airplane was held in buffeting, the load increments were larger than when recovery was made immediately.


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    Title :

    Strain-Gage Measurements of Buffeting Loads on a Jet-Powered Bomber Airplane


    Contributors:

    Publication date :

    1951-03-19


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English







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    Stokke, Allen R / Aiken, William S , Jr | NTRS | 1948


    Flight measurements of buffeting tail loads

    Stokke, A.R. / Aiken, Jr., W.S. | Engineering Index Backfile | 1948