Kept it close to runway because of all the problems that I have had with engine mounting and oil tank mounting. Made 3 passes down runway, all seemed good, a bit nose heavy but adjustments to horizontal stablizer should take care of this. Max. RPM out of engine was 2,000, prop needs some adjusting. I am running a Warp drive ground adjustable prop on this machine until I get everything dialed in, then going to a Performance Propeller wood prop.