Leadership

Jet Engine Employed as Foam Maker

Issue 1 and Volume 117.

Jet Engine Employed as Foam Maker EXPERIMENTS to find ways of reducing the heavy loss of life and heavy material losses in fires have produced one novel development in England—the use of an old jet engine to produce large quantities of high-expansion foam with which to fight large industrial conflagrations. It is the result of four years’ work by the Fire Research Laboratory, at Boreham Wood, near London. By vaporizing water spray in a cylindrical cotton mesh sleeve, which in turn is sprayed with the exhaust gases from a jet engine, an inert gas is produced. The gas, which is 45 per cent nitrogen, 45 per cent water vapor, 7 per cent oxygen and 3 per cent carbon dioxide, is passed through detergent foam solution. The foam is then used to smother such fires as oil, alcohol and other combustible material normally difficult to extinguish with existing fire fighting equipment.…

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