Here's a link to a photo of the Easy Riser biplane hang glider/ultralight that was popular in the late 70's. It was designed by Larry Mauro and the kits were sold through his company, UFM. I built one while in college and flew it a few times as a Hang Glider. After a nasty crash while "ground skimming" it I sold it and bought a more conventional rogallo wing glider that I flew for many years.

Jim



[link]http://www.delta-club-82.com/bible/photo.php?id_aile=701&langue=en[/link]