Thanks Claus and Bill for your input.
I understand exctly what you are saying Claus. I knew you had worked on this, and am happy to see a report on your findings.
The Lit'l Elle started out as a purpose scaling, and redesign based on Gordan Delaney's Pathfinder L.E. , for use as a small full blown stunter. It's set up to use a more powerfull BB version of OS and Magnum .15's.
Wing area is 380 sq. inches, span 44". Prop should be some where from 8X4-9X4, but it'll take flying to make the decision.
The reason for setting up some helps to increase the span is that most potential builders, here, will want to stuff in a bigger engine, and make it "stronger".
It happens all the time, and usually works well, but weight will probably be the worst enemy of these smaller planes. I'm figuring that for a .15, weight must be held to 25-28 oz's for absolute best performance. The only way I can see to handle excessive weight is to go to more power, and lower the wing loading with more area. Ergo, the builders choice as to wing area.
Myself, I'm going to stick to the original concept, and use the more powerful .15, with the smaller wing. I will do all that is needed to keep the weight in the right zone.