Speedway Posters

1946 Dooling Brothers Tether Car Poster Print

1946 Dooling Brothers Tether Car Poster Print. A great print from 1946. This reproduction ad measures 22 inches wide x 17 inches tall.

Wikipedia: Tether cars were developed beginning in the 1920s-30s and still are built, raced and collected today. First made by hobby craftsmen, tether cars were later produced in small numbers by commercial manufacturers such as Dooling Brothers (California), Dick McCoy (Duro-Matic Products), Garold Frymire (Fryco Engineering) BB Korn, and many others. Original examples of the early cars, made from 1930s-60s, are avidly collected today and command prices in the thousands of dollars.

The cars are about 12-24 inches long, 3-4 inches wide, run on rubber tires 3-4 inches in diameter, have a cast metal body (usually magnesium and aluminum, but also fiberglass and wood bodies), and have robust gear drives. Engines are nitro or methanol fueled, with displacements from 0.09-0.61 cubic inches (1.5-10 cubic centimeters). Early engines (prior to 1960s) had spark ignition systems. Later engines use glow plug ignition. The cars are tethered to a central post hitch by a steel cable and run around a circular track of 19.9 meters in diameter.

Current racing activity in the U.S. is governed by the American Miniature Racing Car Association with three racetracks in NY, CA and IN. Contemporary cars run at speeds of up to 200+ miles per hour giving them the reputation as fastest model cars in the world. After push-starting the car the driver decides when to take the speed measurement. As soon as he presses a button the time for 8 laps, which equal to 500 meters, is accurately measured by 1/1000s.

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