Word: tractioned
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Dates: during 1960-1969
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...woefully underequipped. Some 4,000 Russian T-34 tanks are still operating, but though that machine was first-rank armor during the Korean War, it is now obsolete. Still, armor would be of little use to any army fighting in Southeast Asia, an area about as conducive to good traction as a rumpled rug on a waxed floor...
Originally a Canadian innovation (the Mounties use them to track their man), the machine grips all kinds of snow with a tanklike traction belt of metal cleats. Outboard Marine Corp., maker of Evinrude and Johnson motors, produced two new U.S. models priced at $895, and found it had started something of a fad. The number of snowmobiles sold nationally jumped to 10,300 this year, double last year's sales...
...booming. This year the tire industry will sell 12.5 million of them compared with only 3,850,000 as recently as 1957. To keep the boom going, it has brought out a revolutionary type of snow tire: one with tiny metallic studs imbedded in the rubber to increase traction...
Regular snow tires (which no longer whine) increase traction on snow-covered roads by 50%, but the scores of tiny metallic studs-protruding about one-sixteenth of an inch from the tread -increase the new tires traction on ice by at least 180% and reduce braking distance by 70%. Although many states have long-standing regulations against permanent metallic devices on tires, many others have amended their laws to permit the studs, which are designed to wear down at the same rate as the tread so as to minimize road damage. New York has just become one of a growing...
Metallic inserts in tires are not brandnew. In the early days of the automobile, motorists sometimes fastened metal nuts to the tread, producing tires that gave good traction but ripped up highways and brought on many of the early anti-metallic-tire laws. Several years ago, metallic stud tires were developed in Sweden; they have since come into widespread use in Scandinavian countries, where they constitute as much as a quarter of all tire sales...