armody, for a 46 size engine you can use either a 10-7 or go to either an 11-5 or 11-6 prop. Going smaller than an 10-7 prop will allow the engine to rev higher but won't give you much extra pull. For most planes the 11" props will work better. As far as sending the plans for a Cloud Dancer, I have the 60 size which is fairly large plane. I have the various sections cut out from the sheets and would have to take them down to Office Depot and copy them. They are very large and it would be cheaper if you just ordered the plans yourself. Its$11.00 for the set. I can make an outline for my modified rudder if you do decide to build. [8D] http://www.rcmmagazine.com/store/sto...fUFzoU7CU94313