Thanks for the encouragement!

I too love this age of plane and I particularly like the challenge of treading new ground.

Kerry, the original did indeed have split flaps, and it also had trim flaps on the upper surface. The upper flaps were larger than the lower ones and they only went up about 5% to offset trim change of the lower split flap. In my last model the JU EF128 I had elevons and flaps in the usual way on the inner control surface. This had very little trim change and it encouraged me to think that I could avoid the trim flap and just have the lower split flap. As it turns out we will have to be careful with not having too much flap other wise we run out of elevator. I used a modern wing section MH60 which has reflex in it as I did with the 128.

John