Jim, I have one of these with a G-38 turning a 20x8 prop. The prop is bigger than the scale of the plane. As the guys previous its an absolute *****cat. I have flaps on all my other stuff and with the Hugh prop disk this one acts just like it has flaps. Top speed is about scale maybe a little faster but low passes wont burn any worms.

I don’t remember what the firewall thickness is in the kit, mine is 1/2in thick. I glassed that to the light ply fuse. box structure. On the inside of that box structure I ran 1/4x1/2 pin in each of the corners running as far back as it can as a solid unbroken peace. My E and R servos are mounted right under the h stab. I cut the struts off the torque rods that cam with the kit and stuck century jet oleo’s on the stubs.

Here are some pic’s of mine.

Joe