I just finished a twin 280 tlar (that looks about right) design and have a few questions.

1. I am running two "graupner speed 280 race" motors on a 15 amp speed controler and was wondering what type batterys to use to power them. Voltage/amps ?

2. The plane weighs 14.5 ounces without any batteries and a span of 32 inches and about 225 square inches of wing area. Are the 280s enough to pull this plane?

3. It has a symetrical airfoil that is about 1 inch thick at the spar and an average cord if about 7 inches. Someone told me it would be too thick for this type of plane ( sport ) I guess?

4. What size prop should I use? Oh they are direct drive. I have gws 5 X 3 's on right now.

Haven't atempted to fly it yet.

I will atempt to upload a photo.