[PRCo] Re: PRCo

[Boris Cefer]

It was probably very hard to stop without sand when the rails were wet.

B

----- Original Message ----- 
From: "Bob Dietrich" <bdietrich at comcast.net>
To: <pittsburgh-railways at dementia.org>
Sent: Wednesday, May 23, 2007 2:54 PM
Subject: [PRCo] Re: PRCo


>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 =
>> evaporated...
>>
>> But there is an interesting chart which I got from Russ Jackson.
>>
>> Boris
>>
>>
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>> 20Grades.jpg
>>
>>
>>
>
>
>
>
>
>
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