What controls the aileron and elevator response?

What controls the aileron and elevator response?

• A. ELACs
• B. SECs
• C. FACs
• D. PCUs

Answer: (A)

The elevators and ailerons are commanded by the Elevation and Aileron Computers. In normal flight, these ELACs take the pilot’s sidestick inputs and apply the flight-control laws to compute the appropriate surface deflections for roll and pitch. Those commands then go to the Primary Control Units, which are the hydraulic actuators moving the ailerons and elevators. The ELACs are the processing brains that shape and translate pilot intention into surface movement, making them responsible for the aileron and elevator response. Other computers provide augmentation or backup in degraded conditions, but the direct control of those surfaces in normal operation comes from the ELACs.

The elevators and ailerons are commanded by the Elevation and Aileron Computers. In normal flight, these ELACs take the pilot’s sidestick inputs and apply the flight-control laws to compute the appropriate surface deflections for roll and pitch. Those commands then go to the Primary Control Units, which are the hydraulic actuators moving the ailerons and elevators. The ELACs are the processing brains that shape and translate pilot intention into surface movement, making them responsible for the aileron and elevator response. Other computers provide augmentation or backup in degraded conditions, but the direct control of those surfaces in normal operation comes from the ELACs.