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Re: Driver wheel tire footprint

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Dave Bates

February 27, 2007 07:51AM

That's an interesting question. There are two answers, one theoretical and one actual.
In theory a circle (of any size) touches a straight line at only one unmeasurably small point.
In practice, since nothing is absoulutly ridgid, both the wheel and track flex a minute amount at point of contact, and there is some surface area involved.
I do not know how to calculate it, but it can be measured by jacking up the wheel, blueing the rail, letting the wheel down then jacking it up again and measuring the contact area.

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Subject	Author	Posted
Driver wheel tire footprint	Barry R Munro	February 27, 2007 06:48AM
Re: Driver wheel tire footprint	Tim	February 27, 2007 07:09AM
Re: Driver wheel tire footprint	John Craft	February 27, 2007 07:29AM
Re: Driver wheel tire footprint	Dave Bates	February 27, 2007 07:51AM
John and Dave	Tim	February 27, 2007 07:58AM
Re: John and Dave	Nick Gully	February 27, 2007 08:22AM
Re: John and Dave	SMITTY	February 27, 2007 08:47AM
Re: John and Dave	Phil	February 27, 2007 11:20AM
Re: John and Dave	Barry R Munro	February 28, 2007 12:16AM
Re: John and Dave	Herb Kelsey	February 28, 2007 04:39PM
Re: John and Dave	Everett Lueck	March 01, 2007 05:37AM
Re: Driver wheel tire footprint	Ron Keagle	February 28, 2007 08:21AM
Wheel footprint	George Gaskill	February 27, 2007 11:25AM
Re: Driver wheel tire footprint	Herb Kelsey	February 27, 2007 12:40PM
Re: Driver wheel tire footprint	South Park	February 28, 2007 08:50PM
Re: as Einstein might say . . .	John Craft	March 01, 2007 05:10AM

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