[PRCo] Re: PRCo

[Bob Dietrich]

I can attest to Fred's remarks about climbing three of those hills, the ones
on Mt. Worshinton.  I was always trying to climb them on my one-speed
bicycle but mostly I pushed it up.  On occasion I could get up the 10.8%
Grandview at Labelle slope because we could get a good run down from Hallock
St.  I could get half-way up to Bigham from the roadway but no further.
Virginia Ave. was just a block from my house and I never tried it.  We would
either walk or push our bikes through the alleys to go around that one - it
was too steep AND long.  I remember sledding down there during the big snow
in '50, but I don't remember climbing back up.

One interesting thing about breaking - the Labelle and Virginia Ave. hills
had room at the bottom for stopping.  At the bottom of the hill down from
Bigham St. was a traffic light.  Full or not those cars had to stop on that
11.27% grade.  Lotsa sand on the rails there.

 


-----Original Message-----
From: pittsburgh-railways-bounce at lists.dementia.org
[mailto:pittsburgh-railways-bounce at lists.dementia.org] On Behalf Of Fred
Schneider
Sent: Tuesday, May 22, 2007 2:08 PM
To: pittsburgh-railways at dementia.org
Cc: Jackson Russ
Subject: [PRCo] Re: PRCo

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:

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> It seems the subject of the jerky operation of 1711 somewhat =
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> But there is an interesting chart which I got from Russ Jackson.
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> Boris
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