MMU reduces inherent control coupling between which elements?

MMU reduces inherent control coupling between which elements?

• A. Flight control inputs
• B. Hydraulic lines
• C. Electrical systems
• D. Engine torque

Answer: (A)

The concept being tested is how the MMU reduces cross-coupling between the pilot’s control inputs. In a UH-60, the pilot commands come from cyclic, collective, and pedals, and without decoupling, moving one control can unintentionally influence other axes due to how the flight control system and hydraulics respond. The MMU introduces control logic that maps each input to the actuators in a way that minimizes those interactions, so pitching the rotor, lifting or lowering collective, or yawing with pedals each produce more independent and predictable responses. This reduces the inherent coupling between flight control inputs, improving stability, handling, and reducing pilot workload. The other options involve hydraulic lines, electrical systems, or engine torque, which are parts of the actuation and power chain but do not address the way separate pilot inputs interfere with each other in flight control.

The concept being tested is how the MMU reduces cross-coupling between the pilot’s control inputs. In a UH-60, the pilot commands come from cyclic, collective, and pedals, and without decoupling, moving one control can unintentionally influence other axes due to how the flight control system and hydraulics respond. The MMU introduces control logic that maps each input to the actuators in a way that minimizes those interactions, so pitching the rotor, lifting or lowering collective, or yawing with pedals each produce more independent and predictable responses. This reduces the inherent coupling between flight control inputs, improving stability, handling, and reducing pilot workload. The other options involve hydraulic lines, electrical systems, or engine torque, which are parts of the actuation and power chain but do not address the way separate pilot inputs interfere with each other in flight control.