There's sort of two tracks when it comes to jet engines: commercial aviation and military. Commercial just focuses on efficiency, while military has other consi

There's sort of two tracks when it comes to jet engines: commercial aviation and military. Commercial just focuses on efficiency, while military has other considerations to account for. And in both sectors there's plenty of European competition, US/EU joint ventures, and subcontractors/licensed manufacturing going on. Europe does have enough aerospace talent to make a jet engine especially at the cutting edge, but there's a significant amount of tech transfer between the US and Europe happening at the same time.