When must the autopilot and yaw damper not be used?

The autopilot and yaw damper must not be used during takeoff and landing due to critical phases of flight where pilot control and awareness are paramount. During these phases, aircraft maneuverability and the pilot's ability to react to unexpected situations are crucial, as they require full attention to the aircraft's performance and environmental conditions. Engaging the autopilot could potentially diminish the pilot’s situational awareness and reduce their response time in emergencies, making it essential to operate the aircraft manually.

While the autopilot system may be engaged during cruise and approach under certain conditions, the high levels of situational demands and the need for precise control during takeoffs and landings necessitate that the pilot operates the aircraft without reliance on automation. This emphasizes the importance of pilot proficiency and vigilance when managing the aircraft in these flight phases.