Numerous durability problems have plagued Navy propulsion systems because the operational environment has been more severe than anticipated. In the past, the Navy has placed more emphasis on combat requirements in specifying design requirements rather than the peacetime environment. Future engine developments including the T700 turboshaft will be required to pass a Simulated Mission Endurance Test (SMET) prior to being qualified. Development of the SMET began with an intensive survey of flight profiles at various Naval Air Stations along with pilot interviews at both training and fleet squadrons. This survey resulted in seven representative missions for the LAMPS type helicopter. Flight testing provided continuous recordings of major engine parameters over the time history of each profile. Computer aided analysis of these data provide the history plots and a gas generator rotor speed matrix with calculated times at power setting. Results show a much more severe endurance test compared with MQT. SMET details are illustrated by the difference between proposed and actual mission power required. (Kursetz)


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    Title :

    T-58 propulsion system duty cycle


    Additional title:

    Dauererprobung des Antriebssystems T-58


    Contributors:
    Cote, S. (author) / Byers, I. (author)

    Published in:

    Publication date :

    1978


    Size :

    8 Seiten, 15 Bilder, 3 Tabellen, 9 Quellen


    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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    COTE, S. / BYERS, J. | AIAA | 1978


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