Which refueling system is most widely used in military aviation?

The HEMTT Tanker Aviation Refueling System (HTARS) is the most widely used refueling system in military aviation due to its versatile design and operational effectiveness. This system is mounted on the Heavy Expanded Mobility Tactical Truck (HEMTT), which allows it to transport a significant volume of fuel to various locations, including forward operating bases and areas of conflict. The HTARS is equipped with advanced systems that enable rapid refueling of aircraft, which is crucial for maintaining operational readiness and ensuring that aviation units can sustain their missions in a variety of environments.

The HEMTT's mobility, ease of use, and capacity for large fuel loads make it ideal for military operations where logistical support must be quick and efficient. Additionally, it can be set up and operated by relatively small teams, allowing for more flexible deployment in various scenarios.

In contrast, the other refueling systems, while effective in their own right, do not have the same level of widespread application throughout different branches and missions within military aviation. Each of those systems has its specific use cases and requirements, but the HTARS stands out for its balance of capacity, mobility, and adaptability to various operational needs, making it the preferred choice across military aviation.