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.

4472 What colour

الموضوع في 'National Railway Museum' بواسطة 73129, بتاريخ ‏8 ماي 2008.

  1. Matt35027

    Matt35027 Well-Known Member

    إنضم إلينا في:
    ‏16 اكتوبر 2009
    المشاركات:
    1,122
    عدد المعجبين:
    143
    الجنس:
    ذكر
    الوظيفة:
    Builder
    مكان الإقامة:
    Near 74D
    Heritage Railway Volunteer:
    No I do not currently volunteer
    Apple green, single chimney, no deflectors for me. Although recently I was watched a DVD of Steam 1999 that featured Scotsman in Apple Green, no deflectors but with a double chimney, and she actually looked quite good. Isn't this the best compromise of performance against general livery approval?

    Also there is this photo on the SoS website showing a boiler being fitted, I'm guessing this is a test fitting?

    (Can't post a link to it right now, the website is down)
     
  2. Guest

    Guest Part of the furniture Account Suspended

    إنضم إلينا في:
    ‏8 سبتمبر 2005
    المشاركات:
    3,612
    عدد المعجبين:
    21
    الوظيفة:
    Occasional
    مكان الإقامة:
    G C & N S
    What is it that people can't understand about vehicle acceptance?

    It is my clear understanding that Scotsman was tested without the deflectors and visibility was deemed unacceptable - hence they must be retained.
     
  3. Matt35027

    Matt35027 Well-Known Member

    إنضم إلينا في:
    ‏16 اكتوبر 2009
    المشاركات:
    1,122
    عدد المعجبين:
    143
    الجنس:
    ذكر
    الوظيفة:
    Builder
    مكان الإقامة:
    Near 74D
    Heritage Railway Volunteer:
    No I do not currently volunteer
    It's not a case of not understanding, I didn't know!
     
  4. Fred Kerr

    Fred Kerr Resident of Nat Pres Friend

    إنضم إلينا في:
    ‏24 مارس 2006
    المشاركات:
    8,389
    عدد المعجبين:
    5,374
    الجنس:
    ذكر
    الوظيفة:
    Freelance photo - journalist
    مكان الإقامة:
    Southport
    Quite ! As do many others who hark back to a state which is incompatible with modern main line running. The modern railway scene is unforgiving and more technological than designers such as Gresley, Stanier, Bulleid and Churchward had allowed for and it is to the credit of owners that locomotives from these designers are still able to operate main line workings on the modern network.

    Such an opportunity requires some compromise; if you won't accept the compromise then be prepared for the locomotive(s) not to be allowed on the main line but be confined to heritage lines where their speed potential won't be seen or sampled.
     
  5. Miff

    Miff Part of the furniture Friend

    إنضم إلينا في:
    ‏17 جوان 2008
    المشاركات:
    3,059
    عدد المعجبين:
    3,155
    I agree that compromise is essential to keeping steam on the main line. But do you think restoring a single-chimney, as used by 4472 on the main line from 1963 until the late 1990s, would now disqualify it from Network Rail?
     
  6. williamfj2

    williamfj2 Member

    إنضم إلينا في:
    ‏21 ديسمبر 2007
    المشاركات:
    637
    عدد المعجبين:
    56
    الجنس:
    ذكر
    مكان الإقامة:
    50A
    To put it simply no. If the logic used on Scotsman extended elseware then all of the main line Castles would be double chimney fitted and for that matter the King at Didcot (6023?)
     
  7. Spamcan81

    Spamcan81 Nat Pres stalwart

    إنضم إلينا في:
    ‏25 أوت 2007
    المشاركات:
    35,976
    عدد المعجبين:
    22,511
    الوظيفة:
    Training moles
    مكان الإقامة:
    The back of beyond
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    Sorry Fred but I think you are mistaken. A single chimney A3 is not incompatible with main line running. What makes you think it is? A single chimney didn't seem to hamper 4472 during its last main line ticket and a single chimney hasn't hampered 4771, 70013 and 5690, let lone the multitude of Black 5s and Halls passed to run on the national network.
     
  8. Eightpot

    Eightpot Resident of Nat Pres Friend

    إنضم إلينا في:
    ‏10 أوت 2006
    المشاركات:
    8,340
    عدد المعجبين:
    2,506
    الجنس:
    ذكر
    الوظيفة:
    Engineer Emeritus
    مكان الإقامة:
    Aylesbury
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    One thing puzzling me is that only a few months ago there were pictures of the replacement right-hand cylinder being offered up. Yet on a visit to the NRM in October 2008 I photographed this being done. What took so long?
     
  9. Matt35027

    Matt35027 Well-Known Member

    إنضم إلينا في:
    ‏16 اكتوبر 2009
    المشاركات:
    1,122
    عدد المعجبين:
    143
    الجنس:
    ذكر
    الوظيفة:
    Builder
    مكان الإقامة:
    Near 74D
    Heritage Railway Volunteer:
    No I do not currently volunteer
  10. Fred Kerr

    Fred Kerr Resident of Nat Pres Friend

    إنضم إلينا في:
    ‏24 مارس 2006
    المشاركات:
    8,389
    عدد المعجبين:
    5,374
    الجنس:
    ذكر
    الوظيفة:
    Freelance photo - journalist
    مكان الإقامة:
    Southport
    I didn't state specifically that a single chimney A3 was incompatible with main line running - only that some changes were necessary without describing which. I had earlier suggested that the Kylchap double chimney appears to be best suited with the German smoke deflectors because of the confirmed exhaust problems that arise without them - and also that I actually prefer that style of 4472 irrespective of which number / livery it carries. I do not however expect to quibble with the NRM on its choice of livery / number as long as it appears on the main line where it can be best appreciated.

    Unfortunately some purists will disregard / be unaware of the current main line requirements and it is at those quibblers to whom I directed my main argument regarding the need to make alterations necessary to comply with current network requirements irrespective of how unoriginal they are to the original design.

    It also the problem that in its preservation life 4472 has borne many diverse features and number system / livery combinations. Just to be awkward I presume someone might actually ask for 4472 to run in its American tour guise complete with cow-catcher and bell - a state in which it actually powered a railtour in 1968 shortly before being despatched to the USA from Liverpool Docks.

    Lets just acknowledge that 4472 is a unique case and that the present staff at the NRM are prepared to operate it on the main line thus we should be grateful for small mercies and let the NRM be aware of possibilities without demanding them in order to restore 4472 to main line duty.
     
  11. Steve

    Steve Resident of Nat Pres Friend

    إنضم إلينا في:
    ‏7 اكتوبر 2006
    المشاركات:
    12,840
    عدد المعجبين:
    12,060
    الوظيفة:
    Gentleman of leisure, nowadays
    مكان الإقامة:
    Near Leeds
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    That's the boiler simply being tried in the frames. if you look, the wrapper has not been drilled for stays and the inner firebox is completely missing. Since then a new foundation ring has been added to the list of work to do. Even though that picture is now somewhat old, there's still a long way to go.
     
  12. Matt35027

    Matt35027 Well-Known Member

    إنضم إلينا في:
    ‏16 اكتوبر 2009
    المشاركات:
    1,122
    عدد المعجبين:
    143
    الجنس:
    ذكر
    الوظيفة:
    Builder
    مكان الإقامة:
    Near 74D
    Heritage Railway Volunteer:
    No I do not currently volunteer
  13. Spamcan81

    Spamcan81 Nat Pres stalwart

    إنضم إلينا في:
    ‏25 أوت 2007
    المشاركات:
    35,976
    عدد المعجبين:
    22,511
    الوظيفة:
    Training moles
    مكان الإقامة:
    The back of beyond
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    Perhaps you could list the alterations necessary for 4472 to comply with main line running regulations which specifically would not permit a single chimney to be carried on an A3 yet does permit single chimneys (without deflectors) on 6201, 5029, 45407, 45231, 44871, 62005, 61994, 4965 and any others I've missed. With all due respect you haven't answered this yet.
     
  14. Sheff

    Sheff Resident of Nat Pres

    إنضم إلينا في:
    ‏21 إبريل 2006
    المشاركات:
    8,112
    عدد المعجبين:
    3,192
    الجنس:
    ذكر
    الوظيفة:
    Retired Engineer & Heritage Volunteer
    مكان الإقامة:
    N Warks
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    I think the nub of Fred's point is that 4472 and the A3's were modified by BR to give improved and more consistent performance in post-war conditions including poorer coal etc. These are the very conditions we find ourselves with today, and therefore to un-modify it would be to put it at greater risk of failing to keep time on the main line, or alternatively having to have a reduction in loading imposed. 45407, 45231, 44871, 62005, 61994, 4965 are all mixed traffic designs, which were adequate for the work and similar draughting improvements would not have been considered economical back then. 5029 is interesting, having come to grief on at least one occasion due to poor combustion IIRC. So maybe 5029 ought to be "modernised" rather than 4472 being strangled?
     
  15. Spamcan81

    Spamcan81 Nat Pres stalwart

    إنضم إلينا في:
    ‏25 أوت 2007
    المشاركات:
    35,976
    عدد المعجبين:
    22,511
    الوظيفة:
    Training moles
    مكان الإقامة:
    The back of beyond
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    4472 ran quite happily on the main line in single chimney condition between 1963 and 1999(?) in the UK, USA and Australia. So I ask once again what is it about a single chimney 4472 that would disqualify it from working on the main line today. If we are going to disqualify 5MTs from the debate then we still have 6201 and until recently 4771 in single chimney condition and representing the higher power classifications. They've not been disqualified from running because of their single chimney.
     
  16. Anthony Coulls

    Anthony Coulls Well-Known Member

    إنضم إلينا في:
    ‏24 إبريل 2008
    المشاركات:
    1,803
    عدد المعجبين:
    624
    Thanks Ian, the only measurements that we can comment upon are the trailing coupled wheel set. This wheel set has “wobble” of nearly ¼ inch. Further measurements will be taken of the remaining coupled wheel sets in due course. When the findings are known a decision can be make based upon the facts.
     
  17. Steve

    Steve Resident of Nat Pres Friend

    إنضم إلينا في:
    ‏7 اكتوبر 2006
    المشاركات:
    12,840
    عدد المعجبين:
    12,060
    الوظيفة:
    Gentleman of leisure, nowadays
    مكان الإقامة:
    Near Leeds
    Heritage Railway Volunteer:
    Yes I am an active volunteer
    The whole saga is never ending...... It must be utterly depressing for those involved. Has the reason for the 'wobble' been established? Axle or wheel? I'm Really intrigued.
     
  18. Guest

    Guest Part of the furniture Account Suspended

    إنضم إلينا في:
    ‏8 سبتمبر 2005
    المشاركات:
    3,612
    عدد المعجبين:
    21
    الوظيفة:
    Occasional
    مكان الإقامة:
    G C & N S
    Anthony - by "wobble" do you mean the wheels aren't "true" on the axles leading to a lateral measurement across the frames of 0.25" more on the inner face at one extreme than the other?

    If so - how does the outer face / flange maintain gauge?
     
  19. 242A1

    242A1 Well-Known Member

    إنضم إلينا في:
    ‏3 ديسمبر 2006
    المشاركات:
    1,563
    عدد المعجبين:
    1,310
    Let's hope that it is only the one (and that is one too many), however it does not need much of an error in the boring of the wheel centre to throw an appreciable movement at the rim or maybe ---------- I'm not going on, no point. It never rains etc. Just when you think things are starting to go well. Please keep us informed Anthony, thank you.
     
  20. Anthony Coulls

    Anthony Coulls Well-Known Member

    إنضم إلينا في:
    ‏24 إبريل 2008
    المشاركات:
    1,803
    عدد المعجبين:
    624
    It is the tyre and we are working on it - it should not delay the overhaul. Thanks for your patience and understanding folks.
     

مشاركة هذه الصفحة