What is the minimum flow rate for a handline used during ARFF operations?

• A. 75 gpm
• B. 100 gpm
• C. 125 gpm
• D. 150 gpm

Answer: (B)

The minimum flow rate for a handline used during Aircraft Rescue and Fire Fighting (ARFF) operations is understood to be 100 gallons per minute (gpm). This flow rate is critical due to the specific needs of firefighting on and around aircraft, where fast and effective suppression of fuel-related fires is paramount.

A flow rate of 100 gpm ensures that the handline can deliver enough water or firefighting agent in a timely manner to combat fires effectively, especially in high-risk scenarios involving large aircraft and fuel. The rate provides a balance between the need for mobility and the ability to apply sufficient fire suppression materials to control or extinguish a fire quickly, minimizing damage and risk to life.

In the context of ARFF operations, lower flow rates may not be sufficient to suppress large or intense fires effectively, particularly those caused by aviation fuel, which can burn at very high temperatures. Therefore, establishing 100 gpm as the minimum ensures a standard that meets both safety and operational effectiveness for firefighting crews on the airfield.

While higher flow rates are available and may be more effective in certain situations, the minimum standard is set at 100 gpm to maintain operational efficiency and safety across various types of incidents at airports.