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GCR TPO set

Discussion in 'Heritage Rolling Stock' started by Sidmouth, May 12, 2014.

  1. Sidmouth

    Sidmouth Resident of Nat Pres Staff Member Moderator

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    Images on Facebook appear to show a class 37 with a TPO riding up on the front of the 37

    Hoping it isn't the full set and not too much damage done

    https://www.facebook.com/photo.php?fbid=10203757249722319&set=gm.744199228934516&type=1&theater
     
  2. david1984

    david1984 Resident of Nat Pres

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  3. Martin Perry

    Martin Perry Nat Pres stalwart Staff Member Moderator Friend

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    Don't seem to have much luck do they.
     
  4. JBTEvans

    JBTEvans Well-Known Member

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    Surely this TPO set was stabled in a siding, so surely one must ask why was the road set for a siding? Surely catch points should have come into play, but the road I would think ought to be set into the platforms/loop line? (which I would assume to be clear).
     
  5. 73129

    73129 Part of the furniture

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    According to the Facebook page the loco travelled driverless from Quorn to Loughborough. Does anyone know how many miles the loco travelled.


    Cheers
     
    Last edited: May 12, 2014
  6. JBTEvans

    JBTEvans Well-Known Member

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    2 miles 3 chains between the two stations.
     
  7. david1984

    david1984 Resident of Nat Pres

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    I'm open to correction, but the pic has the look of the section between Beeches Road bridge and Charnwood Water, so it appears the TPO coach was out on the main (fairly typical for some shunt moves at Loughborough) rather than in a siding when the 37 said surprise.
     
  8. buseng

    buseng Part of the furniture

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    Just over a year to the day of the 46521 "incident". That involved the TPO set as well.
     
  9. Jamessquared

    Jamessquared Nat Pres stalwart

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    I might be displaying my lack of knowledge of diesels, but how does a diesel travel without a driver? I thought they had driver safety devices to prevent that? I know how it could happen with a steam engine if you were incredibly slack in your safety precautions (there was a famous, and comical, incident on the S&D in the 19th century) but is it possible with a diesel? Or is it as of now just an unsubstantiated rumour?

    Tom
     
  10. Martin Perry

    Martin Perry Nat Pres stalwart Staff Member Moderator Friend

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    If a diesel loco was stopped on its direct air brake, and the power unit shut down, but the hand brake not secured, it could potentially run away when the brake air pressure bleeds off.
     
  11. Jamessquared

    Jamessquared Nat Pres stalwart

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    So roll downhill, rather than travel under power? Is there a sufficient and uninterrupted gradient between Quorn and Loughborough (I don't know the line...)

    I only ask because on the basis of a single comment on Facebook, this has the hallmarks of developing into a complete internet open and shut solution to what happened, when actually the sole irrefutable evidence amounts to a single photograph, from which it isn't even clear whether the moving loco hit the stationary train, or the moving train hit a stationary loco!

    Tom
     
  12. blackfour

    blackfour New Member

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    There's a falling gradient between Quorn and Loughborough, starting at 1 in 330, and then steepening to 1 in 175 until just outside the station. That's what the gradient diagram shows, I have no practical experience so I can't say if this is actually the case. Hope that's of some help!
     
  13. Martin Perry

    Martin Perry Nat Pres stalwart Staff Member Moderator Friend

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    I would assume it had rolled. Travelling under its own power unmanned would require a very unlikely set of circumstances.
     
  14. flying scotsman123

    flying scotsman123 Resident of Nat Pres

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    Does anyone know of any members of the forum that might be able to enlighten us as to what happened? Doesn't look good anyway, I suppose there'll have to be some sort of enquiry so that should explain things. until then, onwards with the speculation...
     
  15. oddsocks

    oddsocks Well-Known Member

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  16. flying scotsman123

    flying scotsman123 Resident of Nat Pres

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  17. threelinkdave

    threelinkdave Well-Known Member

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    There will be a local enquiry no doubt, howevwe as the incident did not involve passenger stock there might not be a RAIB report. On the other hand there might be as the incident appears to involve a passenger line.

    There was an incident on the Brighton line some 20 years ago where an EMU was left on a gradient on the air brake which leaked off and the driverless unit ran away
     
  18. 73129

    73129 Part of the furniture

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    Didn't another class 37 loco do the same thing at Glasgow Central station many years ago.
     
  19. TonyMay

    TonyMay Member

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    Looks like the collision occurred on the down line (towards Sheffield), so that rules out shunting manoeuvre out of Loughborough (which is done using the up line towards London using the totem pole signal). So it looks like it hit a train that was being held at outer or inner home signals there.

    The 37 may have come out of the same siding where 46251 derailed, in which case it should have received the same fate.

    The line is very well engineered, and there is a steady gradient from Loughborough through Quorn to a summit at Swithland.
     
  20. 61624

    61624 Part of the furniture

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    .............And at Pontypool & Blaenavon a couple of years ago (Around the same time as the Gresley brake incident at Grosmont. I think we should just be grateful it wasn't the Gresley TPO set in this accident.
     

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