From a total of 351 instrumentation channels, 341 channels (97%) were in operation during the initial impact of the airplane. Both NASA seats, the energy absorbing seat and the standard seat, maintained their integrity during the impact. The floor accelerations at the seat locations were lower than the accelerations required for the energy absorbers to stroke; consequently, the energy absorbing seat did not stroke. The two seats remained firm in place during the crash and no seat attachment failures were observed. Due to the low accelerations experienced during the crash, both seats performed as standard seats. In the airplane structure, the accelerations were higher at both the point of impact in the left wing and at the forward end of the fuselage. The accelerations on the floor were higher toward the front than toward the rear and the floor accelerations on the left side were higher than on the right side at the front of the fuselage, but toward the rear they evened out.


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    Title :

    Structural loads preliminary results


    Contributors:


    Publication date :

    1986-01-01


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




    Preliminary Results of BE-1900D Operational Flight Loads Data Evaluation

    Thomas A. Zeiler / Daniel O. Tipps / Donald A. Skinn et al. | AIAA | 2001


    Structural loads.

    Watts, G. A. | NTRS | 1964