Thank you for all your information robreach, It certainly has cleared up some of my issues. The problem I am still having with the eagle 50 is the sudden surge of power when the throttle is a bit short of half way. As I have said before, this surge is for a split second, but is enough to get the heli airbourne. When this surge happens I am not in the process of adjusting anything, it just happens without warning. I am at the stage now of just forgetting about the eagle 50. I have spent $330.00AU for the heli and some spare parts and still haven't been able to do much more than let it sit in my office collecting dust. As it is at the moment it is dangerous. The company I bought the eagle 50 from has told me it is the esc and they would send me a new one. I haven't received any correspondence as to what they have done to date. I am beginning to think that this product is a lemon and I have blown my money as no-one has tried to remedy the situation. Is this common practice in the rc helicopter industry?