摘要: |
In the near future, many small airports may be categorized as Index A airports by federal codes. This would require that such airports maintain minimum firefighting capability to combat aircraft fires and protect the flying public. Clearly this requirement would result in significant capital investment in organizing, equipping, and training a fire protection team. In an effort to reduce this financial burden, a test program was initiated to evaluate the effectiveness of a low-cost fire suppression system designed specifically for combating aircraft fires at small airports. The low-cost system consists of a unique skid-mounted extinguishing unit containing two low-pressure extinguishing agent tanks and two high-pressure propellant tanks. The system can be easily installed in the cargo bed of a suitable utility truck. As specified by federal codes, SAFS contains 100 gallons of aqueous film forming foam and 500 pounds of a sodium-based or 450 pounds of a potassium-based dry chemical (Purple K or PKP). SAFS was designed specifically for extinguishing two-dimensional (2-D) hydrocarbon pool fires and three-dimensional (3-D) flowing fuel fires. Testing proved the simultaneous application of compressed air foam and PKP through the dual-agent nozzle onto a combination 2-D and 3-D fire was vastly superior to either of these agents used alone. |