Anybody ever build one of Sig's profile bipes, the Fokker or the Spad? Plans are available. For some reason I have always liked two wings. I, and I guess this dates me, built two of Sterling's Flying Fools, crashed them both, and I would like to try again. In 1960, I thought the Sterling's were heavy and the McCoy 35 couldn't keep the lines tight overhead. Slack lines and into the dirt. No grass where I lived. Russell