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Trafficability of Soils: Eighteenth Supplement, Development of Revised Mobility Index Formula for Self-Propelled Wheeled Vehicles in Fine-Grained Soils
The main purposes of this study were to (a) obtain adequate test data to determine experimentally the vehicle cone index (VCI) for 50 passes for vehicles mounted with nonconventional tires and (b) use results of the field tests to develop a revised mobility index (MI) formula for self-propelled wheeled vehicles.
Trafficability Tests with the Marsh Screw Amphibian on Coarse-Grained and Fine-Grained Soils
This report provides results of trafficability tests of the Army's Marsh Screw Amphibian vehicle in sand, clay, and silt. Various experiments tested speed, towing, slope climbing, and obstacles in different soils.
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