CL-600 Autoflight Control System

An autopilot is a device for correcting an aircraft when it deviates from some preselected reference line. The autopilot essentially provides “muscle” to control the aircraft in the pitch and roll axes according to a basic attitude reference or modes selected on the coupled flight director system.

“Autoflight Control System.” Canadair Challenger 601 Training Guide. August 1984: Chapter 10

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