Which color air hose connects to the emergency coupling on a HEMTT?

The color red is used for the air hose that connects to the emergency coupling on a HEMTT (Heavy Expanded Mobility Tactical Truck). This designation serves a critical safety function. The emergency coupling is designed to quickly connect and seal off the air supply in case of a system failure or emergency situation, ensuring that air-operated devices, such as brakes, function properly. The use of red for this hose is universally recognized as indicating a stop or warning, making it easier for operators and maintenance personnel to identify the emergency air system quickly in high-stress scenarios.

In contrast, other colors typically represent different functions or systems within the HEMTT, such as regular air supply hoses or electrical systems. The differentiation through color coding helps to avoid confusion and ensures that operators can act swiftly and correctly in urgent situations.