Drexus, make yours big enough to cary a 6 pack of cans and the world will beat a path to your door. At 1/5 th scale the 42 inch wide cabin of the Rocket would be 8.4 inches. A six pack measures 5 X 5 X 8 inches and weighs 4 lb. 8 oz. The wing would be 79 inches with a 12 inch chord. In order to replecate the perfomance of the original I would suggest an engine slightly larger than a 60 2s or 70 4 s. The Rocket takes off with pilot an half tanks in 250 feet and climbes at 1500 feet per min. Stalls at 40 MPH with full flaps and cruses at 160 MPH at 75% power. Did you know that you can set the flaps at neg 7 degrees. They act as spoilers in that position.