New British Motor Tender for Aircraft Fires

New British Motor Tender for Aircraft Fires

A new fire tender, introduced by the Bristol Aeroplane Company, has been fitted with large capacity carbon-dioxide equipment, and is designed so that the full output of carbon-dioxide and foam can be brought into action immediately on arrival at the scene of a fire. It is manufactured by the Walter Kidde Company, Limited, Lux Works, Belvue Road, Northolt, Middlesex, England.

The body of the vehicle, besides carrying carbon-dioxide cylinders, a water tank, a foam-compound tank, the pump, and hose lines for the carbon-dioxide cylinders and for the foam pump, also contains loose equipment such as spare foam hose, portable carbon-dioxide cylinders, foam cylinders and a carbon tetrachloride extinguisher, cable for handling crashed aircraft, crash axes, oxygen apparatus and first-aid equipment.

The hose nozzles are located on either side of the crew cab, so that they are immediately available for running out on arrival at the fire. The nozzles incorporate a new four-jet arrangement, giving a rate of discharge of 300 pounds of gas per minute from each nozzle. The use of telescopic “applicators” on the portable carbon-dioxide cylinders make it possible for the extinguishing gas to be applied to the heart of an engine fire.

Though the new tender operates in conjunction with a water tender of 725-gallons capacity, the fire tender also carries a 300-gallon water tank, together with a 100-gallon foam-compound tank, the latter being enough to produce 10,000 gallons of foam. The foam pump can be used for delivering either water or foam, and it is believed to be the first pump capable of this double duty. During the official tests, a rate of foam output of more than 2,200 gallons per minute was obtained. Each foam hose has a length of 60 ft. and a throw of 80 ft.

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