The effect of light truck design variables on top speed, performance, and fuel economy, 1981. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Fuel consumption measurements - 1979-1980 model year vehicles.

Mode of access: Internet.

Rolling resistance of light truck tires. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Research report on the physical condition of passenger vehicle tires in highway use. Final report.

National Bureau of Standards, Office of Vehicle Systems Research, Washington, D.C.

Survey of suspension systems on pickup trucks used to carry slide-in campers II - volume 16. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Analysis and forecast of truck traffic loads and the relative damage to pavement systems as a function of axle configurations. Final report.

Texas State Department of Highways and Public Transportation, Transportation Planning Division, Austin

Laboratory and full-scale parametric studies of the rolling resistance of radial- and bias-ply heavy service truck tires. Final report.

National Highway Traffic Safety Administration, Office of Heavy Duty Vehicle Research, Washington, D.C.

The rolling resistance of pneumatic tires. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Survey of suspension systems on vehicles towing travel trailers II. Volume 15. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Input response tests of selected small passenger cars. Final report.

Mode of access: Internet.

Survey of suspension systems on pickup trucks used to carry slide-in campers. Volume II. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Survey of suspension systems on pickup trucks used to carry slide-in campers. Volume III. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Survey of suspension systems on pickup trucks used to carry slide-in campers. Volume IV. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Survey of suspension systems on pickup trucks used to carry slide-in campers. Volume V. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Performance of low/correct pressure radial ply tires

Extensive field testes were conducted using the UCD single wheel tester employing three large radial ply tractor tires in two different soils, four different soil conditions, two axle load levels, and three levels of tire inflation pressures in order to quantify the benefits of using low/correct inflation pressures. During these tests slip, net traction, gross traction, and dynamic axle load were recorded. Furthermore, soil moisture content, cone index, and dry bulk density data were obtained at test locations. The results of the analysis showed a significant increase in net traction and traction efficiency when low/correct inflation was used. Benefits of using low/correct pressure was higher in tilled soil conditions.