Please do not hang me on this one, however, from what I understand
as a non Airbus Avionic LAME is.
There are 3 ailerons per wing outboard of the flaps.
Each has 2 sources of power, hyd – hyd or hyd – elect/hyd (act with an elect pump generating it’s own internal Hyd power.
Each segment driven by dedicated actuator, commanded by a dedicated Flight Control Computer Primary & Secondary (PRIM 1,2 or 3 & SEC1, 2 or 3).
If one surface fails to operate correctly the other 2 can compensate by moving more or less to keep normal feel & control.
With all ailerons on the end of the wings, flight control inversion is probably of great concern, hence 3 separate control surfaces that
are able to modify their control output.
Good stab....However...
The inboard and mid ailerons are actuated by a servocontrol and an Electro Hydrostatic Actuator (EHA) in an active/stby arrangement. The Outboard ailerons are actuated by 2 servocontrols same active/stby arrangement.
Each actuator has two MAIN operating modes
1. Active mode acts on instructions from FCS
2. Damping Mode, prevents flutter if there are multiple system failures.
Each aileron is actuated by one actuator in Active mode and one in damping mode. Inboard and Mid ailerons are connected to one Primary and one Secondary computer
Outboards are connected to Primary com only.
Don't forget the Spoilers are also integrated via flight concentrator !
