Sorta-on-topic:

In tonight's episode of MythBusters, they explore whether you can build
a personal VTOL vehicle from plans that you can buy on the Internet. I
had a good look at the parts when I auditioned for the show last year.
I won't say much about it til after the show, but what's in the public
domain:

They talked with the SoloTrek guys, and filmed at least part of the
segment at the Hiller Aviation Museum in San Carlos where the SoloTrek
prototype is:

http://www.millenniumjet.com/Trek_News.htm

They originally selected a Rotax 582 for power:

http://www.worldtalkradio.com/archive.asp?aid=2471

It'll be interesting to see what they've made of it since I last saw
it.

Thanks, Bob K.