What should be used to fight a fire in a vehicle fueled by compressed gas that is fully involved?

The best option for fighting a fire in a vehicle fueled by compressed gas that is fully involved is the use of an unmanned master stream. This approach allows for a significant flow of water or firefighting agents from a safe distance, minimizing the risk to firefighters. Vehicles involving compressed gases can pose explosive hazards, particularly when fully involved in fire, which makes an unmanned strategy more advantageous.

An unmanned master stream can apply water or foam to the fire effectively, controlling the situation and ensuring that the firefighters can maintain a safe distance from the potential risks associated with the flames and the compressed gases. This method can help in swiftly cooling the fire and preventing it from spreading.

In contrast, using handheld fire extinguishers or an upright fire hose could place firefighters at risk, as these methods would require closer proximity to the fire. Bystander water supply would also not offer the controlled and sufficient volume of water necessary for a fully involved vehicle fire fueled by compressed gas.