Which Flight Control Computer sends trim actuator commands?

Which Flight Control Computer sends trim actuator commands?

• A. The #1 FCC
• B. The #2 FCC
• C. Both FCCs
• D. None

Answer: (B)

Trim actuator commands in the UH-60S are produced by a single source to keep control inputs unambiguous. In this dual-FCC setup, the second Flight Control Computer is the one responsible for generating the trim commands that drive the trim actuators. The first FCC handles its own control laws and health monitoring, but it does not directly drive the trim actuators. This design prevents conflicting trim commands and ensures a clear, authoritative path for trim adjustments. Therefore, the best answer is that the second FCC sends trim actuator commands. The other options would imply either both FCCs issuing trim commands or none doing so, which isn’t how the system routes trim input.

Trim actuator commands in the UH-60S are produced by a single source to keep control inputs unambiguous. In this dual-FCC setup, the second Flight Control Computer is the one responsible for generating the trim commands that drive the trim actuators. The first FCC handles its own control laws and health monitoring, but it does not directly drive the trim actuators. This design prevents conflicting trim commands and ensures a clear, authoritative path for trim adjustments. Therefore, the best answer is that the second FCC sends trim actuator commands. The other options would imply either both FCCs issuing trim commands or none doing so, which isn’t how the system routes trim input.