How many Flight Control Computers (FCA) are housed in the RCM?

The correct answer is that there are three Flight Control Computers (FCA) housed in the RCM (Rapid Control Model). In unmanned aerial vehicles like the MQ-9, redundancy is critical for ensuring safe operation during various flight maneuvers and mission scenarios. The inclusion of three Flight Control Computers enhances reliability and contributes to fault tolerance within the flight control system.

Having three computers allows for continuous monitoring and comparison of data and decision-making processes. If one computer were to fail or produce erroneous data, the other two can still function and maintain control of the aircraft, mitigating risks associated with single points of failure. This design aligns with best practices in aerospace engineering, ensuring that systems are capable of handling errors effectively while maintaining flight integrity.

The number of three Flight Control Computers represents a balance between operational safety, complexity, and cost, providing a robust solution for the demanding environments in which the MQ-9 operates.