I am a bit of a flight geek. My mom used to teach flying and was rated up to multi-engine class, she also owned and flew a hot air balloon.
My grandfather started flying gliders when he lived in New Delhi, India and subsequently taught my brother and I how to fly at age 15 in Iowa.
I have flown in micro-lights and even learned how to fly paragliders off the cost of England on the Isle of Wight.
So here is the mid-life crisis toy that seem like it needs to be checked out. The home-built micro jet, it even sounds like something Wile E. Coyote would own. The full article is at Wired Magazine.