ABSTRACT
Since day one of the gas turbine engine, the compressor was the key component for the success and always required high development efforts and costs. The importance of the compressors for modern high-bypass ratio engines is demonstrated by the fact that 50%–60% of the engine length and up to 40%–50% of the weight, 35%–40% of the manufacturing, and 30% of the maintenance costs are covered by the compression system. The advances in compressors allow the aero engines to operate with core engine thermal efficiency in the range of 50% while the propulsive efficiency approaches 80% [1].
