Which flight control system uses electronic signals to command actuators to move control surfaces instead of direct mechanical linkage?

Which flight control system uses electronic signals to command actuators to move control surfaces instead of direct mechanical linkage?

• A. Fly-by-wire
• B. Mechanical linkage
• C. Hydraulic control
• D. Pneumatic control

Answer: (A)

Fly-by-wire replaces direct mechanical linkages with electronic signals that command actuators to move the control surfaces. When you move the cockpit controls, sensors convert that input into electrical signals sent to flight control computers. The computers process the inputs (and apply protections and stability augmentation) and then send commands to actuators, which physically move the surfaces. This electronic control path is what differentiates fly-by-wire from systems that rely on direct cables/rods (mechanical linkage) or fluid power alone (hydraulic or pneumatic controls).

Fly-by-wire replaces direct mechanical linkages with electronic signals that command actuators to move the control surfaces. When you move the cockpit controls, sensors convert that input into electrical signals sent to flight control computers. The computers process the inputs (and apply protections and stability augmentation) and then send commands to actuators, which physically move the surfaces. This electronic control path is what differentiates fly-by-wire from systems that rely on direct cables/rods (mechanical linkage) or fluid power alone (hydraulic or pneumatic controls).