To engage the autopilot, what is required?

To engage the autopilot on the Canadair Regional Jet, both Flight Control Computers must be functional. This requirement ensures that the system has redundancy, which is a critical aspect of aviation safety.

The dual Flight Control Computer setup allows for cross-checking and validation of the data being processed. If one computer fails or operates incorrectly, the other can take over, ensuring that the autopilot can still function accurately and safely. This redundancy means that pilots can rely on a more consistent and fault-tolerant autopilot system, which is essential during various phases of flight.

In situations where only one Flight Control Computer is operational, the autopilot cannot be engaged, emphasizing the importance of having both systems functioning properly before relying on autopilot for flying the aircraft.