My h9 60 size Mustang flies very well, although I did some beefing up at the firewall, the horizontal stab, and the retract mounts. I also changed the retracts to Spring Air retracts (www.retracts.com). The p47 should fly well also, from what I have heard. Most arf warbirds have retract issues, especially those with rotating retracts. Some who fly off paved runways or who have real good landing skills report few problems. many have at least beefed up the retracts to use 3/16 music wire.

Ed