In the same failure scenario, which system remains intact to provide limited tail rotor control?

• A. Yaw boost control
• B. Mechanical control system
• C. Digital flight control
• D. None

Answer: (B)

In a failure scenario where the digital flight control system and related hydraulics are compromised, the aircraft still has a direct mechanical control path from the pilot’s pedals to the tail rotor. This mechanical control system is a passive, non-electronic linkage that can move the tail rotor to produce yaw, giving some level of tail rotor control even when the more advanced systems are down. It acts as a backup that preserves limited authority, allowing the pilot to maintain directional control enough for safe handling or controlled landing.

The other systems rely on the electronic, electric, or hydraulic components that would be affected in this scenario, so they cannot provide usable tail rotor control when those systems fail.