National Geographic : 1944 Oct
Milestone in Metallurgy In 2,000 B.C., man alloyed copper with tin to make bronze. In the 14th century, craftsmen fused iron with carbon to make steel. In the 19th century, man first successfully welded one ferrous metal to another. Today, as result of Fairchild engineering and research, man can now join aluminum to steel! Through its application to aircraft engines the chemical bonding of aluminum to cylinder barrels-Fairchild engineers have been able to achieve far more rapid dissipation of heat-greater development of horsepower without increasing piston displacement. The Al-Fin cylinder is being used exclusively on all higher-power Ranger engines. The future of the Al-Fin principle in aviation and other heavy-duty industries is assured. It also has wide possibilities in the consumer field-refrigerators and radio tubes, motorcycles, family planes and autos. In appliances for home, office, factory and farm, the Al-Fin process can effect decided improvements. Listed here are a few of the possible additional applications of the Al-Fin Process. As you consider their magnitude consider what makes them possible-the research and engineer ing of an organization whose credo is "The Touch of Tomorrow in the Planes of Today." The Future of Al-Fin Bearings * Cylinders * Pistons * Brakes Radiators * Refrigerators * Compressors Fire pumps * Motorcycles Auxiliary power plants * and many others BUY U. S. WAR BONDS AND STAMPS S iF'AIRCHILD ENGINE AND AIRPLANE CORPORATION 30 ROCKEFELLER PLAZA, NEW YORK Ranger Aircraft Engines Division, Farmingdale, L. I . *Fairchild Aircraft Division, Hagerstown, Md.... Burlington, N. C. Duramold Division, New York, N. Y. Subsidiary, Al-Fin Corporation, New York, N.Y. * Affiliated, Stratos Corporation, New York, N. Y.