Engine performance is better for constant outer-spool mechanical-speed operation than for constant inner-spool mechanical-speed operation over most of the flight range considered. Combustor and afterburner frontal areas are about the same for the two modes. Engine performance for a mode characterized by a constant outer-spool equivalent speed over part of the flight range and a constant outer-spool mechanical speed over the rest of the flight range is better that that for constant outer-spool mechanical speed operation. The former mode requires larger outer-spool centrifugal stresses and larger component frontal areas.


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    Title :

    Performance and component frontal areas of a hypothetical two-spool turbojet engine for three modes of operation


    Contributors:

    Publication date :

    1955-12-19


    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English