AFCS and its meaning pair

• A. AFCS — Automatic Flight Control System
• B. AFCS — Airframe Control System
• C. AFCS — Automatic Flight Calibration System
• D. AFCS — Automatic Freeway Control System

Answer: (A)

AFCS stands for Automatic Flight Control System. This is the part of the aircraft that can automatically manage the flight path by using sensors, a control computer, and actuators to move the flight controls. When you engage the autopilot, the AFCS takes your selected mode (such as maintain altitude, hold a course, or follow a navigation path) and automatically deflect the elevator, ailerons, and rudder as needed to keep the airplane on that path. The flight director and autopilot are common ways pilots interact with the AFCS, with the flight director providing guidance cues and the autopilot executing the commands.

Other terms aren’t standard aviation terminology for this concept. Airframe Control System isn’t a recognized label for automatic flight path management, Automatic Flight Calibration System isn’t used to describe flight control, and Automatic Freeway Control System isn’t applicable to aviation.