Performance of the propulsion system must be known to a high degree of accuracy throughout the entire flight envelope to achieve the level of operational capability demanded from today's high performance aircraft. The starting point for a synthesis of propulsion system behavior is the performance of the basic engine, and this is normally obtained from measurements made during full scale tests on the ground in test beds and altitude simulation facilities in the latter, the environmental conditions of pressure and temperature met in flight can be accurately reproduced. During the late 1970's joint engine development and licensed production programs among companies from different countries were becoming common. Further, engines which were developed in one country often were used in airframes developed in another. Both situations require engine performance information which can be interpreted internationally and provide a valid basis for performance comparisons. However, experience showed that there was poor understanding of the meaning of engine performance characteristics as derived from test facility measurements in the different countries. Because of the critical natures of engine test measurements and their influence on aircraft performance predictions, as well as the need for a sound understanding of test-related factors, which may influence such measurements, an inter-facility comparison was proposed by the Propulsion and Energetics Panel (PEP) of AGARD. The basic idea was that a nominated engine would be tested in several facilities, both ground level and altitude, the result then compared, and explanations sought for any observed differences. Keywords: Jet Aircraft. (JES)


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    Titel :

    Measurement Uncertainty Within the Uniform Engine Test Programme


    Beteiligte:
    J. P. Vleghert (Autor:in)

    Erscheinungsdatum :

    1989


    Format / Umfang :

    90 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch