Trafficability tests of over-snow vehicles

A report of extensive tests is presented dealing with drawbar pull; power efficiency; type of trackage; type of and number of grousers; type and spacing of bogie wheels. Highly efficient electronic sensing devices and recorders were used to collect the values of the various parameters above. A comparison of numerous factors involved are shown in graphs and tables with photographs of machines and various parts tested. Duplicate tests were performed on several makes, models, and sizes of vehicles.A discussion is presented by Mr. R.A. Work, who also presented results of field tests made by snow surveyors of the Soil Conservation Service who use a variety of machines.