A computer program written in FORTRAN 77, for calculating drag polars of gas turbine powered aircraft in the en-route configuration is presented. The method includes a correction for compressibility effects. Applications to several civil aircraft (business and transport aircraft, turboprop and turbofan powered) are presented. They suggest that the low-speed polar is accurate within 10 to 15 counts, for normally used CL values. The drag polars with compressibility effects appear realistic for small angles of attack only.


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    Title :

    Computer Program for the Drag Prediction of Subsonic, Turbine Powered Aircraft in the en-Route Configuration


    Contributors:

    Publication date :

    1983


    Size :

    46 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English