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喷气发动机制造商经历了激烈的市场竞争和军民用航空下滑而开始得到恢复的90年代中期。F—22、F／A-18E／F和JSF对新发动机研制的需求只在军用方面。现在情况正在发生变化。研究和发展的投资正在减少，几乎没有什么新飞机需要新的涡届发动机。商用发动机市场份额的竞争也正趋于
Jet engine manufacturers experienced intense market competition and civil and military aviation began to recover in the mid-1990s. F-22, F / A-18E / F and JSF demand for new engine development only in the military. The situation is changing. Investment in research and development is declining, and few new aircraft require a new turboshaft engine. Competition for commercial engine market share is also on the rise