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Sounds Of Snowmobiling In Winter
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Book Synopsis Sounds of Snowmobiling in Winter by : International Snowmobile Industry Association
Download or read book Sounds of Snowmobiling in Winter written by International Snowmobile Industry Association and published by . This book was released on 1976 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Snowmobile Noise by : Robin Harrison
Download or read book Snowmobile Noise written by Robin Harrison and published by . This book was released on 1974 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Superior National Forest (N.F.), South Fowl Lake Snowmobile Access Project, Eastern Region by :
Download or read book Superior National Forest (N.F.), South Fowl Lake Snowmobile Access Project, Eastern Region written by and published by . This book was released on 2011 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Maximum Exterior Sound Level for Snowmobiles by : Snowmobile Technical Committee
Download or read book Maximum Exterior Sound Level for Snowmobiles written by Snowmobile Technical Committee and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Recommended Practice establishes the instrumentation, test site, and test procedure for determining the maximum exterior sound level for snowmobiles. Sound propagation is directly related to the ground cover and provides the largest variation to the measured result. A correction factor is introduced to improve year round test repeatability of the results on grass surfaces by correcting their spectra to be similar to snow covered ground spectrums. Measured sound pressure levels are also highly dependent on the degree of track slip present when performing the vehicle acceleration. Operators should attempt to limit track slip as much as possible while maintaining the requirements described in 5.1.1.Sound pressure measurements on the test surfaces described in 4.4 have been known to vary as much as 6 to 10 dBA due to atmospheric, surface condition and vehicle fluctuation. The most recent update is focused on accounting for the the variability in the surface related variation. Over 210 sets of data from 2 winters and summers were used to understand this variation in snowmobile sound testing. The correction factor for the grass surface is introduced to accommodate the surface differences from different grass test sites as well as the difference between summer and winter sound propagation. The correction factor presented is the result of using an average winter speaker response as a reference to determine the adjustment to the response measured on grass surfaces. It should be noted that the average snow surface response used may not represent all snow surface test conditions allowed within this standard. The correction factor may be updated to represent a wider set of snow conditions as more data become available. With the correction factor in place, the pass/fail criterion is much more robust from test site to test site and season to season.
Book Synopsis Yellowstone and Grand Teton National Parks (N.P.), Winter Use Plans by :
Download or read book Yellowstone and Grand Teton National Parks (N.P.), Winter Use Plans written by and published by . This book was released on 2000 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings written by and published by . This book was released on 1980 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Snowmobile Noise Effects on Wildlife by : John G. Bollinger
Download or read book Snowmobile Noise Effects on Wildlife written by John G. Bollinger and published by . This book was released on 1974 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Illinois Snowmobile Noise Background Document by : Michael F Nechvatal
Download or read book Illinois Snowmobile Noise Background Document written by Michael F Nechvatal and published by . This book was released on 1974 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Agricultural and recreational use noise by : United States. Office of Noise Abatement and Control
Download or read book Agricultural and recreational use noise written by United States. Office of Noise Abatement and Control and published by . This book was released on 1972 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Public Hearings on Noise Abatement and Control by : United States. Office of Noise Abatement and Control
Download or read book Public Hearings on Noise Abatement and Control written by United States. Office of Noise Abatement and Control and published by . This book was released on 1972 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Wallowa-Whitman National Forest (N.F.), Burnt Powder Planning Unit by :
Download or read book Wallowa-Whitman National Forest (N.F.), Burnt Powder Planning Unit written by and published by . This book was released on 1979 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supplement to the Draft Environmental Statement General Management Plan by : United States. National Park Service. Denver Service Center
Download or read book Supplement to the Draft Environmental Statement General Management Plan written by United States. National Park Service. Denver Service Center and published by . This book was released on 1980 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Draft General Management Plan, Environmental Assessment by :
Download or read book Draft General Management Plan, Environmental Assessment written by and published by . This book was released on 1997 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Yellowstone and the Snowmobile by : Michael J. Yochim
Download or read book Yellowstone and the Snowmobile written by Michael J. Yochim and published by . This book was released on 2009 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first scholarly study of winter use in any national park examines the history of the conflict between the National Park Service and various interest groups over snowmobile use in Yellowstone--a highly-politicized, value-driven battle that has taken a serious toll on the NPS's ability to protect the park.
Download or read book Federal Register written by and published by . This book was released on 2013-04 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Shasta-Trinity National Forest (N.F.), Mt.Shasta Ski Area Development Plan by :
Download or read book Shasta-Trinity National Forest (N.F.), Mt.Shasta Ski Area Development Plan written by and published by . This book was released on 1988 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supplement to the Draft Environmental Statement, General Management Plan, Yosemite National Park/California by : United States. National Park Service. Denver Service Center
Download or read book Supplement to the Draft Environmental Statement, General Management Plan, Yosemite National Park/California written by United States. National Park Service. Denver Service Center and published by . This book was released on 1980 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: