What are the 5 basic subsystems that comprise AFCS?

What are the 5 basic subsystems that comprise AFCS?

• A. Stabilator, SAS, FPS, Flight Director, Autopilot
• B. Stabilator, SAS, FPS, Trim, Flight Director
• C. Stabilator, SAS, Trim
• D. Stabilator, SAS, FPS, Flight Director, Autopilot

Answer: (B)

Automatic Flight Control System is built from five core subsystems that work together to automatically stabilize and guide the helicopter. The stabilator provides automatic pitch stability by deflecting to counter unwanted pitch changes. The Stability Augmentation System adds damping to reduce oscillations and improve overall stability. Flight Path Stabilization uses feedback to keep the aircraft on a commanded flight path, smoothing out competing inputs. Trim sets the neutral control position to reduce pilot workload and hold the desired attitude with less stick pressure. Flight Director gives the pilot visual guidance cues for the commanded flight path, translating requirements into actionable attitude targets. Autopilot is not treated as a separate basic AFCS subsystem in this context, even though it can be integrated with AFCS. The set that includes stabilator, SAS, FPS, Trim, and Flight Director aligns with this question, making it the correct choice.

Automatic Flight Control System is built from five core subsystems that work together to automatically stabilize and guide the helicopter. The stabilator provides automatic pitch stability by deflecting to counter unwanted pitch changes. The Stability Augmentation System adds damping to reduce oscillations and improve overall stability. Flight Path Stabilization uses feedback to keep the aircraft on a commanded flight path, smoothing out competing inputs. Trim sets the neutral control position to reduce pilot workload and hold the desired attitude with less stick pressure. Flight Director gives the pilot visual guidance cues for the commanded flight path, translating requirements into actionable attitude targets.

Autopilot is not treated as a separate basic AFCS subsystem in this context, even though it can be integrated with AFCS. The set that includes stabilator, SAS, FPS, Trim, and Flight Director aligns with this question, making it the correct choice.