The Traffic Accident Reconstruction Origin -ARnews-

Hydroplaning Speed

Bob Kegel (bobkegel@seanet.com)
Fri, 2 Jan 1998 19:52:59 -0500 (EST)

In a discussion, on another list, of hydroplaning, someone pitched out an avaiation formula. It calculates the MPH at which a tire hydroplanes on standing water as 7.7 to 9.2 times the square root of the tire pressure. The range of the multiplier covers variations in tire design and tread depth. Is this formula applicable to cars and trucks?
Bob Kegel
bobkegel@seanet.com

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