[PRCo] Re: #1727 Accident

[John Swindler]

Did PAT 1727 have a current state safety inspection sticker???

(:>)

John



>From: boris6 at volny.cz
>Reply-To: pittsburgh-railways at dementia.org
>To: pittsburgh-railways at dementia.org
>Subject: [PRCo] Re: #1727 Accident
>Date: Wed, 12 May 2004 15:25:22 +0200 (CEST)
>
>A few weeks ago we had runaway at shops in Ostrava. A small
>lockwasher forgotten between two bolts on cable terminal board
>caused a short circuit in low-voltage circuits and the car went
>through shop gate with full power and track brakes on rails. Even
>the long strong 7-ton (metric tons) track brakes were not able to
>stop the car! Fortunately nobody was injured and the damage was
>only minimal.
>
>So, I think the track brakes alone are not able to stop the car
>on 6 % downgrade, especially at higher speed when they get
>overheated rapidly and the friction coefficient is almost zero.
>The friction is always lower at higher speeds.
>
>Boris
>
>
>Od: "James B. Holland" <PRCoPCC at P-R-Co.com>
>
> > >
> > The Operator was told that he had new wheels on his
> > car,
> > fresh from the lathe, which leaves tiny score marks all
> > the way around
> > the wheel  AND  THUS  the wheels would be slippery on
> > open, wet / frosty
> > T-Rail - operator had 6-months on rail - slippery
> > wheels = sliding past
> > stops.     More actual experience is needed to discern
> > more than this -
> > textbook training won't cover it all.
> >
> > We have been thru this countless times before!
> >
> > >   Question #2 ... because the
> > >track brakes will stop a car almost as fast as
> > >dynamics (dynamics are 4.75
> > >mphps and the total with track brakes is 9 mphps, were
> > >they also not
> > >functioning?
> > >
> > Good question  --  have often pondered this as well.
> >  Track brakes
> > won't do alot for the car at high speed but should
> > prevent it from
> > running away when all else fails.     Wonder if the
> > shorting of the
> > motor leads might have an effect on circuitry
> > elsewhere.
> >
> > >  And who was the idiot who decided that the derail at
> > >  South
> > >Hills Junction ... put there after previous run aways
> > >... should be
> > >removed?  I'm not sure anyone should have any awards
> > >in that fiasco unless
> > >it should be a collective Darwin honorable mention.
> > >
> > >"Dietrich, Robert J." wrote:
> > >
> > >
> > >
> > >>Wasn't this the accident that started at the "top" of
> > >>the tunnel - the
> > >>car had no brakes.  The motorman became somewhat of a
> > >>hero by getting
> > >>all the passenger in the rear of the car and braced
> > >>for a collision.
> > >>
> > >>-----Original Message-----
> > >>From: pittsburgh-railways-bounce at lists.dementia.org
> > >>[mailto:pittsburgh-railways-bounce at lists.dementia.org]
> > >>On Behalf Of
> > >>James B. Holland
> > >>Sent: Tuesday, May 11, 2004 5:40 AM
> > >>To: pittsburgh-railways at dementia.org
> > >>Subject: [PRCo] Re: #1727 Accident
> > >>
> > >>No, it was:
> > >>
> > >>          '''New wheels, motor leads not secured on
> > >>          truck, motor leads
> > >>drag and short out wiping out dynamics.'''
> > >>
> > >>Derrick J Brashear wrote:
> > >>
> > >>
> > >>>On Mon, 10 May 2004 macmarka at netzero.net wrote:
> > >>>
> > >>>
> > >>>>Anyone remember this? Anything to do with loss of
> > >>>>brakes? It is dated
> > >>>>10/28/87. Any injuries occur?
> > >>>>
> > >>>>
> > >>>That was the "new trucks, brakes not set up
> > >>>properly" accident, yes?
> > >>>I started high school in fall 1987, and I only
> > >>>started riding the rail
> > >>>system around then.
> > >>>
> > >>>No fatalities.
> > >>>
> >
> >
> >
>

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