[size=3]Hello,
After gaining some experience with electric rc planes I got interested in trying a helicopter and bought an Esky Robinson 22. After a few short hops and some minor crashes, I started having a problem that I cannot solve. In attempting to take off, the helicopter behaves normally until enough power is applied and then suddenly spins to the left. I have checked all of the fasteners for tightness, checked the trims on the transmitter, checked all electrical connections, tried adjusting the 4 in 1 unit, and even replaced the 4 in 1 unit believing the electronics may have failed, with no different results. Have I missed something? What should I be checking? Thanks in advance.
Mike[/size]

you might try checking the motors to see if one is failing, or you might check and make sure that both sets of blades spin freely. If there was some binding it would cause that problem

also you can check out the cx2 guide and see if you can find anything there. It's a pretty simular heli and it is a good resource.
http://www.heli-max.net/mediawiki/index.php/Index:HOWTO