Propulsion Technology — Economic and Ecological Challenge

Already in the early phase of the first axial flow compressors for jet engines some aspects of this turbomachinery have been of importance in having exerted a substantial influence on the whole development of jet engines. To these aspects belong the off-design conditions and the aerodynamics of the blading of the axial flow compressor as well as the necessary performance improvement of the compressors in order to produce larger propulsive forces (thrust). These influences will be dealt with here, where also the findings of the early phase will be addressed because these topics refer to typical contributions made in Germany. From that it follows that the subject is not new.