The Plane doesn't have a split elevator so you can't get to the Rudder for your typical spring set-up. Check out earlier posts/pictures and you'll see what I mean. I finding the rudder useless anyway-don't help at Mach II. Grey Beard-Today was great, very little wind, and the engine is breaking in, did some passes about 5 feet off the deck and this little plane is amazing. The 9x8.5 should utilize the available power. With the 9x7 it is unloading ???????????? Unreal. I'm totally hooked on the speed thing now, so I lost all my senses. Gotta try for a little more-will it end?