I'd expect the competition for these companies to come in not from someone using the same technology, but a different technology that serves the same purpose. Eg. what happened to Kodak and Nokia.
For jet engines, the only thing that comes to mind is electric aircraft. No single-crystal turbine blades needed at all.
I may have picked a bad example, but the principle stands.
EDIT: China has an extensive high-speed rail network. While those don't quite cover intercontinental flight, it is the sort of paradigm shift I mean.
For jet engines, the only thing that comes to mind is electric aircraft. No single-crystal turbine blades needed at all.
I may have picked a bad example, but the principle stands.
EDIT: China has an extensive high-speed rail network. While those don't quite cover intercontinental flight, it is the sort of paradigm shift I mean.