What is an operational evolution involving aircraft refueling with engines operating called?

Hot refueling is an operational evolution where aircraft are refueled while their engines are operating. This process is critical during combat operations as it enables aircraft to remain airborne and ready for immediate action without having to shut down their engines. The hot refueling procedure is carefully orchestrated to ensure safety and efficiency, often involving strict protocols and specialized equipment to minimize the risks associated with handling fuel near operating engines.

Cold refueling refers to the process of refueling an aircraft while its engines are off, thereby eliminating the risks associated with engine heat or running components. Ground refueling typically involves refueling at a fixed base rather than in a tactical situation. Static refueling usually involves the aircraft being stationary and is generally synonymous with cold refueling.

Understanding the distinctions between these types of refueling is essential for personnel involved in flight operations and maintenance, as it affects flight readiness and operational capabilities.