What action is used to fight a Delta-fire?

• A. Firemain
• B. CO2
• C. Jettison
• D. Halons

Answer: (C)

Delta-fire is a fuel fire, typically involving aviation fuel. The key move to fight it is to jettison the fuel supply from the burning aircraft or area to remove the fire’s feed. Once the fuel source is removed, the fire can be more easily controlled and extinguished with appropriate agents if needed.

Firemain (water) isn’t ideal for fuel fires because it can spread burning fuel. CO2 can help in confined spaces but doesn’t eliminate the fuel supply and has limited effectiveness in open deck or large-area fires. Halons are specialized extinguishing agents for certain enclosed-space fires and don’t address removing the fuel source, plus their use is more limited and often restricted. Jettison directly targets the根 cause by cutting off the fuel, making it the best first action for a Delta-fire.