FIFTH-WHEEL MOUNTINGS ON TRACTOR SEMITRAILERS

IT seems desirable to increase appreciably the amount of kingpin offset in tractor semitrailer combinations, according to Mr. Horine, who discusses the effect of kingpin offset on load distribution, clearance angle, traction, braking, steering, maneuverability, and riding qualities.

The author also explores the geometric limits on how far ahead of the tractor axle the kingpin may be placed.