What type of fire is characterized by fuel flowing from the aircraft to the ground?

The type of fire characterized by fuel flowing from the aircraft to the ground is a spilled fuel fire. This type of fire occurs when there is a fuel leak from the aircraft, causing liquid fuel to pool on the ground. When this fuel ignites, it creates a fire that can spread quickly due to the presence of additional flammable materials in the vicinity.

The spilled fuel fire is particularly dangerous because it can create a large surface area of flammable liquid, increasing the risk of rapid fire spread. Understanding this type of fire is crucial for airport firefighters, as they must respond quickly and effectively to prevent the fire from escalating and causing more damage or injury.

Three-dimensional fire refers to fires that can occur in various vertical and horizontal planes, which does not specifically relate to fuel flowing from the aircraft. Traveling fire is a term used for fires that propagate over surfaces, typically involving fire moving along a surface due to the ignition of materials. Aircraft fuel fire could suggest fuel ignited while still in or around the aircraft but does not focus on the spilled aspect. Each of these terms describes different scenarios, but the accurate characterization of a fire resulting directly from leaking fuel is best described as a spilled fuel fire.