Holy crap!

Holy crap!  This made me wonder about where one might acquire a miniature turbine jet engine like that?  And what would it cost?  Turns out they're made in Grants Pass, Oregon (not that far from where I live!), and they cost between $2,000 and $5,500.  You can buy them over the Internet.  The biggest one delivers 52 pounds of thrust with a 5 pound engine weight, while drinking 1.5 pounds per minute of fuel (full throttle).

A serious RC enthusiast could afford to buy an actual turbine jet engine, delivering crazy levels of performance, as you can see in that video.  Some nutcase with technical ability (or access to it) could make a formidable drone with one of these. 

We live in amazing times...