.46-.60 Speed Wing
I bought on E-Bay a .46-.60 Speed Wing (Delta) a few weeks ago. It is all balsa built and covered in a covering like Ultracote. I purchased a Jett Fire 50 with rear tuned pipe. I am using JR Sport 125MG servos for the elevons. Running an APC 8.8x8.5 prop, it was turning over 18,000 rpm after the 5th tank. All I can say is that it flew ballistic. Take your eye off of it and it is gone.