🚀 go-pugleaf

E. Faubion wrote:

> "Mark B." <spam_*this*_@see.my.sig> wrote:
>
> >Read this carefully Earl:   A *rolling* CoF of 1.0 is *NORMAL*!
> >                            A *rolling* CoF of 1.0 is *TYPICAL*!
> >                            A *rolling* CoF of 1.0 is *EXPECTED*!
>
> I read it.  Now from which forensic publication did you find this
> little jewel?
>
> >Tough brake (yuk, yuk), Earl, but there's ABSOLUTELY NO WAY you
> >could have measured 0.7-0.8 typical CoFs on an ABS-equipped car.
>
> Sure I have, but don't let that stop you from having another temper
> tantrum when you verify it.  If you had any understanding of the topic
> you'd have also included the speeds at which the tests were run.  An
> oversight?  Nahhh..... just further proof you haven't a clue what's
> going on here.  Even a novice investigator knows the CoF is very speed
> dependant.
>
> >Yes Earl, Northwestern U. *does* list them as "typicals" -- but
> >they're *SLIDING* CoF, and you *CANNOT* measure a sliding CoF on
> >ABS-controlled stops.
>
> I've NEVER said I measured sliding CoF on an ABS test.  I wrote I
> measured the CoF, period.  And the chart is:
> "Coefficients of Friction of Various Roadway Surfaces" copyright 1990.
> Sounds to me like you're looking at something else.

And it has always been that way:

Possible Ranges of Pavement Drag Factors for Rubber Tires:


DRY                                                WET
                            Under 30 mph /  Over                Under 30
mph  /  Over
                            From / To     From / To                From /
To        From / To
Asphalt or Tar
New, Sharp      .80     1.20      .70     1.00              .50