what is aileron balance trim
An aircraft 'rolling', or 'banking', with its ailerons. An Aileron and roll trim tab of a light aircraft. An aileron (French for 'little wing') is a hinged flight control surface usually forming part of the trailing edge of each wing of a fixed-wing aircraft.he name 'aileron', from French, meaning 'little wing', also refers to the extremities of a bird's wings used to control their flight. It first appeared in print in the 7th edition of Cassell's French-English Dictionary of 1877, with its lead meaning of small wing.