Thanks for your reply's guy's they have been very helpful,I didn't fly the plane that following day but i did install a new servo and it was fine the servos and rx are fairly new I've been flying it off and on for the last 6mths. its happened to me before at the Field and some one mentioned it was due to the quick charge that id given it that the voltage was to high [sm=confused.gif] I taxied around with it and it came back i flew it that day and had no more further troubles, in fact i flew it on several occasion's after. the connection advice makes sense its possible that maybe i was fortunate that the bad connections heated up enough to make contact from the amp draw? I've sense installed the servo as a throttle for my H9 cub and it seems to be working just fine.i've seen what amps can due to automobile wiring so its possible. thanks again... BILL