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Tire Footprint Affects Hydroplaning On Wet PavementRecent investigations of tire hydroplaning at highway speeds reveal, in addition to inflation pressure, tire-footprint aspect ratio (FAR), defined as width divided by length of tire surface in contact with pavement, significantly influences speed at which dynamic hydroplaning begins. Tire speeds and forces developed during tests of up to 65 mi/h (105 km/h) were monitored on flooded test surface to identify development of hydroplaning. Study focused on automotive tires because FAR's of automotive tires vary more than those of aircraft tires.
Document ID
19890000133
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Yager, Thomas J.
(NASA Langley Research Center, Hampton, VA.)
Date Acquired
August 14, 2013
Publication Date
March 1, 1989
Publication Information
Publication: NASA Tech Briefs
Volume: 13
Issue: 3
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-13683
Accession Number
89B10133
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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