OH...That's a good point!! (Prop Size)

I am running a 13-6 (um...I think)...yup...I just checked, 13-6.

I don't know if that engine, (Magnum .91 4-stroke), will turn much bigger, I need help on that one.

Clearance is not an issue...I upgraded the gear (Sullivan nose gear and a hunk of aluminum for the mains...I have another 3+ inches before the prop touches pavement).

I will also add some tubing for brakes...It's frustrating to land right in front of yourself and watch helplessly as the thing....just .....keeps....going. Any Left stick will drop a wing until it nearly stops, and I usually have to go 'off-roading' to turn the thing around...unless I plan my return-taxi very carefully.

Take-offs are great though, 6 feet and I can go vertical if I want to. You cannot, (well, I cannot), Flare-stop this plane on final.

I will call SIG and find out how to let the helium out of the wings.