You need to research more before you attempt to fly. A 450 gets out of the "toy" relm as it can hurt you or someone else. You need to know what the parts of a helicopter do. IE the "swash", pitch links, gyro, each servo and how they react. You also need to understand your radio and throttle curves, pitch curves and gyro gain, trim and sub trim. The finless will get you up to speed on all the parts and how to set up a helicopter correctly. Set-up is everything. Also, if you crash, you need to do it all over again to ensure the helicopter is safe.