[PRCo] Re: PRCo

[Fred Schneider]

This is impossible Boris.   You know those technically sophisticated  
Germans tell us that the limits of adhesion for trolleys is about 6  
percent and beyond that you need a rack.   Even some American  
engineers today seem to think that you cannot go beyond 6 percent on  
adhesion.   They command big bucks so they must be correct.

This data must all be fabricated.   And if you try to prove it, I'll  
bet all the U. S. Geologic Society maps are all lies.   The contour  
lines are all figments of someone's imagination.

<BG>

The only thing that makes me believe the values are correct is that I  
climbed those hills when I was a young man of 12, 13, 14, 15, and on  
into my early 20s long before heart disease, overweight and arthritis  
was a problem and they were still damn steep.

f3

On May 22, 2007, at 1:00 PM, Boris Cefer wrote:

> Content-Type: text/plain;
> 	charset="iso-8859-2"
> Content-Transfer-Encoding: quoted-printable
>
>
> It seems the subject of the jerky operation of 1711 somewhat =
> evaporated...
>
> But there is an interesting chart which I got from Russ Jackson.
>
> Boris
>
>
> -- Attached file removed by Ecartis and put at URL below --
> -- Type: image/jpeg
> -- Size: 800k (819994 bytes)
> -- URL : http://lists.dementia.org/files/pittsburgh-railways/Pgh% 
> 20Grades.jpg
>
>
>