ORIGINAL: Hot Rod Todd
110mm may work fine for an electric version, but it's too far forward for a nitro plane due to the fuel loadon take-off. You'll have nose-over problems. I'd say start at 115mm. I believe I'm at 117mm, and it flies great.
Ummm...no. The fuel tank is not far enough in front of the CG to effect it much. 115mm will be quite sensitive on the elevators. This plane has been flown quite nicely at 108mm with a nitro two stroke. Nose overs are not an issue. Proper use of the elevator in holding the tail is of course part of the process of most warbirds.