RE: SPADs
I had some spare coroplast from building the Debonnaire a while back. So, I cut it out to make one of the flying wing configurations, this one had the thicker coro on the bottom and the thinner on the top, with a somewhat flat bottom wing setup. The fuselage was poly down-spout, and when all the parts were done, it seemed light enough that it may be capable of good flight with an electric motor. If I have some time, I may just finish it with electric and see how it performs.
I once had a flying wing configuration balsa aircraft (Rapier Ripmax), this one had a symetrical wing and an OS 50. This thing was a rocket ship. We timed it at 121 mhp with a police RADAR gun. I wonder how the coro version would fare, speed wise.
The Debonaire flew ok, it was rather heavy, though, and I lost it one day just after take off in a pretty strong wind. But it flew ok.
CGr.