Yes, even with the 18.5x12WPN cut back to 18 inches it does load the motor a bit, but I was getting about 7,250rpm on 20% nitro and it seemed to suit my flying. I first ran it with a 17x13 but the speed was all over the place, however it was nice to sport fly with. I tried a couple of props, even modded an 18x11WPN to 17.5x12.25 and it liked that.

With the original Oxai gear and grass field I was sort of stuck at 18 inches, but now I've got some longer legs on it I can start experimenting again. With two votes in for the 19x11 sitting in my cupboard, there's no harm in trying it..

Flywilly, the Hanno is sitting in an Slingshot which is an Aussie design. The kit quality was a bit iffy and I'd dearly love to build one from scratch "properly". It'd make a fantastic electric design as well.