ORIGINAL: Gravityisnotmyfriend
. . . As far as the humming, I'm guessing that the servos are trying to move the control surfaces and the throttle arm farther than they can. If they don't hum if you disconnect the servo arm from the servo then there's a good chance that that is the problem. What kind of a radio do you have? If you have a computer radio, you can change the endpoints so the control surfaces don't move as far. Otherwise, you could just move the pushrods in closer on the servo arm or out farther on the surface control horn.
It is a computer radio, the exact name is not with me now, I am at the office and the radio is at the house.
I don't have a clue about what end-points are or how to correct them. Anyone wanna help if they can on how to adjust a computer radio's end-points? Thank you!!!!
P.S: I have (or my roommate has that is) misplaced my radio's instruction booklet and the internet service I have at present is too slow to download a booklet at this time.
By-the-way, the control surfaces themselves are NOT connected to the pushrods yet, the pushrods are only connected in the servo compartment.