Snowmobile Noise (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Snowmobile Noise<br/><br/>The snowmobiles used as test vehicles were obtained from volunteers at the Lolo Hot Springs, Montana, test site. This site is a papular point of embarkation for snow mobile trips. Twenty-five snowmobiles were tested over a period of a proximately 3 weeks. The test snowmobiles are listed in the results section in tab e I, p. 9 by make and model. No attempt was made to determine whether the machines tested were representative of the total snowmobile population in the country. Sound levels were measured at a distance of 50 ft from the snowmobiles for two reasons. The first was that it is the distance. Specified by the Society of Automotive Engineers sae ji92 test procedures, which is the most widely recognized measure ment method for snowmobiles. This is the best reference point to start determining the environmental impact from snowmobile noise. The second reason was to develop a winter snow test procedure and correlate it with sae ji9z. The latter is a care fully controlled Qualification test, not suitable for field use.

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