From which flight control computers do the yaw dampers receive data?

From which flight control computers do the yaw dampers receive data?

• A. FCC1 only
• B. FCC2 only
• C. FCC1 and FCC2
• D. Neither FCC1 nor FCC2

Answer: (C)

Yaw dampers are part of the stability augmentation system and rely on flight-control computer data to determine how to counter yaw motions. On the CRJ-550, there are two flight-control computers, FCC1 and FCC2, and the yaw dampers receive data from both of them. This dual input provides redundancy and cross-checking, so the system can continue to function if one FCC fails or feeds inconsistent data. That shared data source from FCC1 and FCC2 is what keeps the yaw damping effective and reliable.

Yaw dampers are part of the stability augmentation system and rely on flight-control computer data to determine how to counter yaw motions. On the CRJ-550, there are two flight-control computers, FCC1 and FCC2, and the yaw dampers receive data from both of them. This dual input provides redundancy and cross-checking, so the system can continue to function if one FCC fails or feeds inconsistent data. That shared data source from FCC1 and FCC2 is what keeps the yaw damping effective and reliable.