I maidened my viper with a 46 ax two days ago. Both wheels came off on landing and gear was ripped out form underneath the fueslage with mounting plate. Geez wheels didnt even last one flight. Called GP today rep stated this is the first time he has heard of problems with the wheels separating from the brass bushings but would be happy to send out some wheels and landing gear whenever they get some more in stock. Wonder why they are out of stock? Plane flew great though had to put in quite a bit of up trim though. Also when just running out of fuel the plane starts to climb. Is this normal? Also where can I get a decent set of racing wheels?