Re: Bonneville Request

[W S Potter <wester6935@comcast.net>]

Sounds a bit like Kim Hiatt and his bowling ball/meteorite comparison.

You may want to try a spike driver comparison too.

Wes




on 8/13/03 8:32 AM, Dave Dahlgren at ddahlgren@snet.net wrote:

> they post it right on the fuel truck for every one to see and i believe they
> update it hourly.. You might ask them when they update and conduct your tests
> right around the same time as well. I would be the most interested in the
> moisture content and hardness of the salt as i think that has the biggest
> effects on speed but may or may not effect traction that much. If the surface
> deforms it has to absorb power in doing so. In essence you are continually
> driving up hill out of the hole. I vote for a test, if I get a vote LOL as it
> is
> your project maybe suggest is a better word,  that involves dropping a sphere
> of
> a known weight and height and checking the depth of the depression along with
> the salt temp and moisture content.. it would end up being sort of a 'hardness
> test'... You could have your own Mayfield salt hardness test like that
> Rockwell
> and brinnel scale.. End up with a number like 22 MayfSH with the numeric part
> the depth of the depression or the combination of deep and water content....
> Dave
> 
> DrMayf wrote:
>> 
>> That would be cool. Now all I gotta do is ask them to let me have access to
>> the data. Aren't they outside the pits also? That would/will work. I can
>> spectate from around there and then at each measurement go and get the data.
>> My plaan in all of this is to not only measure the friction coefficient
>> ewach hour or so during the day but to watch how the water in the salt
>> rises. This should be apparent in the CoF data. I can plot vs temp or/and
>> pressure and or air density. When done, I will provide data to anyone who
>> wants the data and will post on my web site after I return home.
>> 
>> mayf

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