Offtracking Calculation Charts for Trailer Combinations 650721

Offtracking characteristics of single unit vehicles and combination vehicles are described. Offtracking values were obtained with scale models of vehicles making turns on turning radii varying from 25 feet to 225 feet.
Individual vehicle offtrackings are influenced by three variables: degree of turn, length of vehicle wheelbase, and turning radius. Research found that the offtracking is greatest when the projection of the rear axle axis passes through the turning radius center; even though the projections of the other axles on the vehicle or trailer combination do not, at the same time, pass through the turning radius center.


Subscribers can view annotate, and download all of SAE's content. Learn More »


Members save up to 40% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.