Originally Posted by
wrench1
As I understand, the major components to include the HT50 engine have legacy architecture for a design foundation. So I don’t think any were built “from scratch.” Its also my understanding some of the original legacy engineers were brought in to work with the initial component upgrades. And with the ongoing developments in the micro-turbine and turbine-generator fields, my read is the HT50 is more a “best practices” design than pulling rabbits out of a hat effort.
But how far can you copy an existing design without running into IP issues? And if you look for inspiration, micro-turbines and APUs are non-starters (arf!) as these components are not designed for efficiency nor for flight-critical reliability.