1959-01-01

Steering and Traction Characteristics of Rubber-Tired and Crawler Vehicles 590038

THIS paper describes evaluations made of several drive and steering combinations of 4-wheel, 2-wheel, and crawler vehicles on macadam, loose ground, and mud.
Tests revealed that geometrically steered 4-wheel drive and steer vehicles closely approach the drawbar characteristics of crawler vehicles. High-speed tests on macadam showed the geometrically steered vehicles to be superior to skid-steered wheeled vehicles.
The variable ratio type skid-steer drive came closest of all configurations tested to approaching the pulling and steering characteristics of the geometrically steered vehicles.

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