If you register, you can do a lot more. And become an active part of our growing community. You'll have access to hidden forums, and enjoy the ability of replying and starting conversations.

Tangmere

Discussion in 'Steam Traction' started by Live Steam, Sep 4, 2011.

  1. Sheff

    Sheff Resident of Nat Pres

    Joined:
    Apr 21, 2006
    Messages:
    7,569
    Likes Received:
    2,346
    Gender:
    Male
    Occupation:
    Retired Engineer & Heritage Volunteer
    Location:
    N Warks
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    This shot from the original tour thread #151 is much clearer, and can be blown up on the screen. Definitely castellated I'd say, with the pin legs clearly seen at 9' 0'clock. The head is less clear.

    [​IMG]4/
     
  2. threelinkdave

    threelinkdave Well-Known Member

    Joined:
    Aug 1, 2013
    Messages:
    2,065
    Likes Received:
    1,240
    Gender:
    Male
    Occupation:
    Retired
    Location:
    Stratford-upon-Avon or in a brake KD to BH
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    It is highly unlikely that different fixings would be used on oposite sides of a loco. The drivers side clearly has a castle nut and split pin. it would be reasonable to assume the other side is the same. The still of the video is insuficiently clear to dispute this assumption IMHO

    Edit look at post 133 for a clear pic of the drivers side
     
  3. Steamage

    Steamage Part of the furniture

    Joined:
    Sep 14, 2005
    Messages:
    4,736
    Likes Received:
    1,107
    Location:
    Oxford
    Agreed. YouTube's heavy compression has obscured the detail (if was ever there) in the video.
     
  4. Lplus

    Lplus Well-Known Member

    Joined:
    Nov 24, 2011
    Messages:
    1,919
    Likes Received:
    991
    Location:
    Waiting it out.
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    And that was after Eastleigh wasn't it? Looks as it should there.
     
  5. Sheff

    Sheff Resident of Nat Pres

    Joined:
    Apr 21, 2006
    Messages:
    7,569
    Likes Received:
    2,346
    Gender:
    Male
    Occupation:
    Retired Engineer & Heritage Volunteer
    Location:
    N Warks
    Heritage Railway Volunteer:
    Yes I am an active volunteer

    The OP says Winchfield in the morning.
     
  6. Steve

    Steve Resident of Nat Pres Friend

    Joined:
    Oct 7, 2006
    Messages:
    11,930
    Likes Received:
    10,088
    Occupation:
    Gentleman of leisure, nowadays
    Location:
    Near Leeds
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    Not saying you're wrong and it's a reasonable assumption but I know of a couple of locos where detail on one side is different from the other.
     
  7. Swan Age

    Swan Age Member

    Joined:
    Sep 8, 2005
    Messages:
    941
    Likes Received:
    260
    Gender:
    Male
    Location:
    21C101 in the South West
    Heritage Railway Volunteer:
    No I do not currently volunteer
    Agreed. Tangmere however has the earlier one piece type crosshead/piston rod, as favoured by Bulleid, but with the later type castellated nut. 34007 has the modified two-piece crosshead/piston rod joined by a cotter, but fitted with the earlier type nut arrangement.
    Interestingly, on page 61 of the excellent book by Richard Derry of the light Pacific's, there is a close up photo of 34007's valve gear taken in 1962, with the latter type crosshead, the cotter pin is fitted horizontally on the plain nut, so the oil pot above it would not do anything to stop the cotter coming out if it worked loose.
    Perhaps the BR fitter who assembled that particular assembly, didn't follow best practice!

    Sent from my IdeaTabA2109A using Tapatalk
     
  8. Lplus

    Lplus Well-Known Member

    Joined:
    Nov 24, 2011
    Messages:
    1,919
    Likes Received:
    991
    Location:
    Waiting it out.
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    It wouldn't be the fitter's fault - the orientation of the gudgeon pin is dictated by the keyway in the back taper. Given that particular crosshead and that particular pin, it can only fit in one orientation....unless the key is removed. Which is NOT a good idea.

    I believe the pin and crosshead are matched to ensure both tapers tighten correctly, which is likely to be a works job, so it has to have been deliberate.
     
    Swan Age likes this.
  9. Sheff

    Sheff Resident of Nat Pres

    Joined:
    Apr 21, 2006
    Messages:
    7,569
    Likes Received:
    2,346
    Gender:
    Male
    Occupation:
    Retired Engineer & Heritage Volunteer
    Location:
    N Warks
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    Seems I mucked up the link last time ........ This shot from the original tour thread #151 at Winchfield in the morning is much clearer, and can be blown up on the screen. Definitely castellated, with the split pin legs clearly seen at 9' 0'clock. The pin head is less clear. (Also sent link to RAIB)[​IMG]
     
  10. La Duchesse

    La Duchesse New Member

    Joined:
    May 6, 2012
    Messages:
    17
    Likes Received:
    7
    Occupation:
    Signalling Client Logistics.
    Location:
    Swindon, UK
    The rebuilding of the Bulleid Pacifics wasn't done in a hurry. Ultimately only about half of the class was rebuilt, but the rest remained in service. The faults weren't serious enough for BR to rush the rebuilds or withdraw the unrebuilt locos. Most of the problems with Bulleid's original design seem to have been related to the poor access for maintenance, rather than inherent failings. It seems to be fashionable to knock Bulleid's Pacifics, but I'm sure if BR had found them too problematic they'd have all been rebuilt.
     
  11. Sheff

    Sheff Resident of Nat Pres

    Joined:
    Apr 21, 2006
    Messages:
    7,569
    Likes Received:
    2,346
    Gender:
    Male
    Occupation:
    Retired Engineer & Heritage Volunteer
    Location:
    N Warks
    Heritage Railway Volunteer:
    Yes I am an active volunteer

    I've not seen any evidence of Bulleid's pacifics being knocked on Nat Pres at all?
     
  12. La Duchesse

    La Duchesse New Member

    Joined:
    May 6, 2012
    Messages:
    17
    Likes Received:
    7
    Occupation:
    Signalling Client Logistics.
    Location:
    Swindon, UK
    I'm sure the members of this forum are above making uninformed criticisms of Bulleid's design.
     
  13. Steve

    Steve Resident of Nat Pres Friend

    Joined:
    Oct 7, 2006
    Messages:
    11,930
    Likes Received:
    10,088
    Occupation:
    Gentleman of leisure, nowadays
    Location:
    Near Leeds
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    Yeh, it's not as if they were Great Westerm.....;)
     
    Swan Age likes this.
  14. 242A1

    242A1 Well-Known Member

    Joined:
    Dec 3, 2006
    Messages:
    1,558
    Likes Received:
    1,299

    I'm fairly sure that I have. Just to be sure I'll put it on my "to do" list.
     
    paulhitch and class8mikado like this.
  15. Jimc

    Jimc Part of the furniture

    Joined:
    Sep 8, 2005
    Messages:
    4,052
    Likes Received:
    4,665
    Occupation:
    Once computers, now part time writer I suppose.
    Location:
    SE England
    Heritage Railway Volunteer:
    No I do not currently volunteer
    I think it would be hard to find any class of locomotive that hasn't had a fair old knocking at some time or another. Such is the nature of rail enthusiasts (like every other kind!)
     
  16. Spamcan81

    Spamcan81 Nat Pres stalwart

    Joined:
    Aug 25, 2007
    Messages:
    35,121
    Likes Received:
    20,773
    Occupation:
    Training moles
    Location:
    The back of beyond
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    You've been looking at the wrong threads in that case.
     
  17. Caldicot Castle

    Caldicot Castle New Member

    Joined:
    Mar 5, 2013
    Messages:
    5
    Likes Received:
    2
    Has anybody seen Tangmere since the incident?
     
  18. Paul42

    Paul42 Part of the furniture

    Joined:
    Jul 17, 2006
    Messages:
    5,922
    Likes Received:
    3,830
    Gender:
    Male
    Location:
    East Grinstead
    Mailout received from Steam Dreams today states Tangmere will haul the trip to Bath & Cardiff on 1/3.
     
  19. Footbridge

    Footbridge Member

    Joined:
    Aug 4, 2013
    Messages:
    499
    Likes Received:
    634
    Gender:
    Male
    Location:
    Darlington
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    Here's a photo of how 34007 Wadebridge looks now:

    [​IMG]
     
  20. davidarnold

    davidarnold Member

    Joined:
    Jan 27, 2006
    Messages:
    436
    Likes Received:
    392
    Well she didn't. Is there any news on her return to the main line?
     

Share This Page