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Friday, June 13, 2008

Ackerman Steering and Racing Oval Tracks

This link has information on the Ackerman Steering geometry; something that is useful information for racers to know. Conventional Ackerman Steering was developed around 1800 AD. Yes, 1800, not 1900. The Ackerman concept is to have all four wheels rolling around a common point during a turn.
Most short tracks (oval tracks) have a corner radius of 150'+/-. For a race car that has a 108" wheel base and 60" width, the inside tire would need to turn 3.4 degrees and the outside tire would need to turn 3.3 degrees to have Ackerman Steering. In other words, the inside tire needs to turn 1/10th of a degree more than the outside tire in order to fulfill the Ackerman requirement for this car and corner.

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