First outdoor flight. I still need to go back and get the single mast flying. Had a few crashes, but patent went through. I have plans to build a gas powered version, 54cc 2.5HP. Rotor diameter about 3 meters.

http://www.youtube.com/watch?v=Gop78ubNM0Q

Details of the airframe:
http://www.youtube.com/watch?v=qs1OwlBSvsk

Most recent web site:

http://envisionrotorsystems.blogspot.com/