What is the minimum flow rate required for an ARFF vehicle bumper turret?

• A. 30 gpm @ 150 psi
• B. 40 gpm @ 150 psi
• C. 50 gpm @ 150 psi
• D. 60 gpm @ 150 psi

Answer: (B)

The minimum flow rate required for an Aircraft Rescue and Firefighting (ARFF) vehicle bumper turret is crucial for effectively combating aviation fires. A flow rate of 40 gallons per minute (gpm) at 150 pounds per square inch (psi) provides a sufficient water output to suppress a fire, particularly during initial response phases where quick deployment of water or firefighting foam is necessary.

A flow rate of 40 gpm is considered an industry standard that balances the need for adequate water coverage while ensuring the apparatus can maintain operational parameters without overextending the vehicle's capabilities.

While other options suggest higher flow rates, such as 30 gpm or 50 gpm, these do not meet the minimum standards established for effective firefighting in airport environments. The capability to deliver 40 gpm ensures that ARFF vehicles are well-equipped to handle various fire scenarios, particularly those associated with aircraft incidents. Therefore, this rate provides a blend of effectiveness and safety during firefighting operations.