I originally planned to use a Brison 3.2 in my Sun Dancer, but when I had the airframe on the bench I decided to use a ZDZ40 instead. The light airframe and wings did not seem to be up to the weight and vibration if I wanted this plane to live long. With the ZDZ40, with pitts muffler, the CG is spot-on with the flight battery pack under the cabanes. Servos are Fut9252's on the ailerons, JR8311's on elevators, JR8611 pull-pull on rudder & Fut3010 on choke & throttle.

The plane flies very light and the ZDZ40 has plenty of power. The rolls are anemic compared to the GP Ultimate, but the barn-door ailerons work well. I compare the flight characteristics to a big Stick. Easy to fly. The drag of the 2 wings do require that landings are done under power, not gliding idle.

I have seen 2 other Sun Dancer's with 3.2's flying and except for the slightly better vertical performance and higher landing speeds there is no difference. We have flown together as well and my maneuvers were consistently tighter and smoother. The additional weight of a larger/heavier engine is IMHO not worth it.

Safe Flying!