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Mock up of Ivatt 2-6-2 tank

Discussion in 'Steam Traction' started by Cartman, Aug 29, 2025 at 5:39 PM.

  1. Cartman

    Cartman Part of the furniture

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    I've seen a few pictures of a full size wooden mock up of an Ivatt class 2 2-6-2 tank, which was built at Derby in 1946. It's a very good, convincing fake, but why was it built, what was the point of it and what happened to it?
     
    Cartman, Aug 29, 2025 at 5:39 PM
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  2. daveannjon

    daveannjon Well-Known Member

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    From memory it was done to get union approval for the footplate layout, maintenance accessibiity, that sort of thing - different times!
     
    daveannjon, Aug 29, 2025 at 5:47 PM
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  3. D1002

    D1002 Resident of Nat Pres

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    A Wooden Mock up of an L.M.S. Class 2 2-6-2T ordered by L.M.S. Locomotive Designer H.G. Ivatt photographed at Derby Locomotive Works ...this image dating from before 1946 when the first of the Class LMS No.1200 / later B.R. No.41200 was introduced.

    Image source L.M.S. / British Railways /scrapbook scan via IP.
    Presumably this one:

    IMG_1238.png
     
    Last edited: Aug 29, 2025 at 6:25 PM
    D1002, Aug 29, 2025 at 6:05 PM
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  4. Hermod

    Hermod Well-Known Member

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    Fairbourne ordered a wooden mock up of his 2-6-4 and Cox judged it little money well spent.
    Ivatt ordered it removed from planet when taking over.
    Britania cab section was modelled in wood and shown to unions and workshops.
    Fairbourne was WW1 pilot and had aircraft manufactoring expirience.
     
    Hermod, Aug 29, 2025 at 6:59 PM
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  5. LMS2968

    LMS2968 Part of the furniture

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    The Brit cab mock-up was ordered by Riddles who wasn't happy with the first attempt, ordering more detail and a better standard of finish. Enginemen's representatives were allowed to examine it and make recommendations. That didn't stop others from that fraternity complaining about it throughout the lifespan of the engines!
     
    LMS2968, Aug 29, 2025 at 8:07 PM
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  6. huochemi

    huochemi Part of the furniture

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    Before CAD it was a good way of working out whether everything fitted. They used to make one third scale wooden models of submarines for the RN to check there was room for pipe runs etc.
     
    huochemi, Aug 29, 2025 at 8:33 PM
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  7. brennan

    brennan Member

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    Swindon had their own system.
     
    brennan, Aug 30, 2025 at 9:28 AM
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  8. Cartman

    Cartman Part of the furniture

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    I can see that, but surely not necessary to build a whole model loco, why not just a cab? It was never done for any other types, and as the class 2 tender version already existed, the accessibility etc would be very similar
     
    Cartman, Aug 30, 2025 at 9:43 AM
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  9. 35B

    35B Nat Pres stalwart

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    Perhaps there was a thought that by doing it more fully, the advantages of the cab mock up could be achieved for the whole locomotive? After all, maintenance isn’t just in the cab area.

    Given what’s been discussed on other threads, notably the work by @S.A.C. Martin, it would be interesting to know what was going on within the industry, and what ideas were being played with.
     
    35B, Aug 30, 2025 at 10:28 AM
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  10. MellishR

    MellishR Resident of Nat Pres Friend

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    They would of course.
     
    MellishR, Aug 30, 2025 at 11:25 AM
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