You can get a jet engine for less than $2000 for small RC planes. The confidence that that jet engine will actually be robust enough to not loose your UAV or k

You can get a jet engine for less than $2000 for small RC planes. The confidence that that jet engine will actually be robust enough to not loose your UAV or kill somebody will likely cost a lot more in time. If we insist on having engineers sign off on things, that signoff takes time, and it costs money to have smart people reviewing things.