Quote Originally Posted by uavmx View Post
Yeah, that's obviously where the cost is tied up....not in the technology. Axial flow blades don't seem like that are all that complex to machine.....There's got to be a way to attack these issues with a group of smart guys and over come these limitations.
A large chunk of cost is that you can't build turbine engine parts out of plain 'ol steel. Some high temp alloys in raw bar stock form is >$1000 per linear inch. The benefit of ceramic is that it would be cheap if they could find a way to make it work.