Flight loads on the 747 propulsion system and resulting JT9D blade to outer airseal running clearances during representative acceptance flight and revenue flight sequences were measured. The resulting rub induced clearance changes, and engine performance changes were then analyzed to validate and refine the JT9D-7A short term performance deterioration model.


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    Title :

    B747/JT9D Flight Loads and Their Effect on Engine Running Clearances and Performance Deterioration; Bcac Nail/p and Wa JT9D Engine Diagnostics Programs


    Contributors:
    W. J. Olsson (author) / R. L. Martin (author)

    Publication date :

    1982


    Size :

    74 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English