ACE-100 provides the accepted method for estimating the fatigue life of empennage structures. It is based on airplane normal accelerations at the center of gravity (CG Nz). While there is a strong correlation between CG Nz and wing loads, little correlation exists with empennage loads. A Cessna 172P was instrumented for this flight loads program. It was found that significant loads were induced in the horizontal and vertical tails during roll and dutch-roll maneuvers indicating that the fatigue load spectra derived using ACE-100 may significantly underestimate the fatigue cycles experienced by the empennage. In addition, a method for monitoring in-flight tail loads was developed that does not require the installation of strain gages on each airplane.


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    Title :

    General Aviation Aircraft Empennage Flight Loads


    Additional title:

    Sae Technical Papers


    Contributors:
    Kim, David (author)

    Conference:

    General, Corporate & Regional Aviation Meeting & Exposition ; 1999



    Publication date :

    1999-04-20




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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    Kim, D. / SAE | British Library Conference Proceedings | 1999



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