What is the minimum amount of water required for initial firefighting efforts on a large aircraft fire?

The minimum amount of water required for initial firefighting efforts on a large aircraft fire is 1,500 gallons. This volume is essential because large aircraft fires can burn intensely and spread quickly, necessitating a substantial and immediate water supply to effectively combat the flames. The use of 1,500 gallons allows firefighters to create a significant cooling effect and to manage the fire's spread, especially considering the flammable materials present in aircraft and the potential risk of fuel ignition.

Moreover, the National Fire Protection Association (NFPA) and other safety standards recognize this quantity as a baseline to ensure adequate firefighting capabilities. Having this amount ready for immediate use helps ensure that fire crews can quickly establish a defensive operation and reduce the risk of fire escalation, protecting both the aircraft and surrounding areas. The options below this volume would typically not suffice for the scale and complexities involved in a large aircraft incident.