A fully integrated autopilot controls the aircraft around three axes. Which option reflects this?

A fully integrated autopilot controls the aircraft around three axes. Which option reflects this?

• A. Two axes
• B. One axis
• C. Four axes
• D. Three axes

Answer: (D)

Three-axis control means the autopilot actively manages the airplane’s roll, pitch, and yaw. This lets it stabilize the wings (roll), maintain or change the nose angle (pitch) for altitude and flight path, and control the aircraft’s heading (yaw). With three axes, the autopilot can coordinate attitude and direction automatically, which is what “fully integrated” implies. A single-axis system would handle only one control (usually heading), and a two-axis system covers roll and pitch but not automatic heading changes. Four axes go beyond the standard setup. So, controlling three axes best reflects a fully integrated autopilot.

Three-axis control means the autopilot actively manages the airplane’s roll, pitch, and yaw. This lets it stabilize the wings (roll), maintain or change the nose angle (pitch) for altitude and flight path, and control the aircraft’s heading (yaw). With three axes, the autopilot can coordinate attitude and direction automatically, which is what “fully integrated” implies. A single-axis system would handle only one control (usually heading), and a two-axis system covers roll and pitch but not automatic heading changes. Four axes go beyond the standard setup. So, controlling three axes best reflects a fully integrated autopilot.