How Machines WorkMachines

Airport Fire Truck

Airport fire trucks are extremely powerful machines. They offer relatively good acceleration for their size and weight, are able to negotiate rough terrain outside the airport area, carry large capacities of water and fire fighting foam, are fitted with powerful high-capacity pumps and water/foam cannons, and are capable of delivering firefighting media over long distances. They can be mounted on 4x4, 6x6, or even 8x8 wheeled chassis. In order to decrease their turning radius, the 8x8 wheeled unit may have all four front wheels steerable.

Airport Fire Truck
Newer airport fire trucks also incorporate twin-agent nozzles/injection systems to inject a stream of Purple-K dry chemical into the AFFF firefighting foam stream, knocking-down the fire faster. Some also have Halotron tanks with handlines for situations that require a clean agent to be utilized. These features give the airport crash tenders a capability to reach an airplane rapidly, and rapidly put out large fires with jet fuel involved.

Some airport fire trucks have an elevated extended extinguishing arm, giving a possibility to raise a water/foam cannon into the height of approximately 10 to 20 meters, that can puncture through superficial structures of an aeroplane to fight a fire inside the fuselage.

Some arms have a reinforced nozzle, called a snozzle, that, according to the United States National Transportation Safety Board is a "piercing nozzle on the fire truck that is used to penetrate an airplane's fuselage and dispense AFFF to extinguish fire inside the cabin or cargo area." More details