Final Answer:
The primary brake system for the MHU-110 trailer is an air-over-hydraulic brake system.
Step-by-step explanation:
The MHU-110 trailer, commonly used in military applications for transporting aircraft munitions, is equipped with an air-over-hydraulic brake system as its primary braking mechanism. This system utilizes both compressed air and hydraulic pressure to actuate the brakes. The air-over-hydraulic brake system is known for its reliability and effectiveness in providing controlled braking for heavy-duty trailers.
In this configuration, the brake pedal transmits air pressure to a hydraulic master cylinder, which then amplifies the force and applies it to the wheel brakes. This hybrid system combines the advantages of both air and hydraulic braking systems, offering a powerful and responsive braking solution suitable for the operational requirements of the MHU-110 trailer.