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Ian Rathbone

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Posts posted by Ian Rathbone

  1. On 25/03/2024 at 13:54, sej said:

    Hi Ian, it's a 4mm Spinner, I'll spray it. What do you use for Midland locos?

    Cheers

    Simon

    I use a cellulose paint matched to Precision Paints LMS Crimson Lake, which is probably the best colour on the market and it’s available in gloss. You say ‘I’ll spray it’ , do you mean a rattle can or air brush? Rover Damask Red is probably discontinued now and it’s also a little pink. LMS, MR & BR Crimson Lake/ Maroon are all the same colour.

     

    Ian R

     

     

    • Like 1
  2. 35 years ago I bought a Badger 150 dual action, which has a detachable bottom feed cup or jar for the paint. I am still using it after painting well over 1600 locos and coaches in 4 & 7 mm scales. In that time it has had two new heads and needles but the internal seals have never been replaced. It is easy to clean and strips down to all its component parts without fuss.
     

    You get what you pay for. I would suggest you get a mid-range dual action air brush from a named manufacturer, avoid unbranded Chinese airbrushes or any bundled up with a compressor. 
     

    Ian R

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    • Agree 3
    • Informative/Useful 1
  3. 48 minutes ago, Steamport Southport said:

     

    Power Class A

     

    There should have been a white A painted on the cab in a white disc but very few engines got it. Mostly 16XX and 2021 Pannier Tanks.

     

    As here on 2112.

     

    https://railway-photography.smugmug.com/GWRSteam-1/18641897-GWR-Wolverhampton-Geo/George-Armstrong-2021-SaddlePannier-Tank-class/i-f2BdM78/A

     

    Jason

    You mean a white circle, not a disc. Sometimes the circle was omitted. 
     

    Ian R

    • Agree 1
  4. It is a complete myth that British 00 gauge arose from the inability to fit motors into British outline H0 locos. This may have been true in the 1920s but, by the time the British scale was put into production by Hornby in the late 30s, motors could quite easily be made small enough to fit. No, the reason for choosing a larger scale for the bodies was to enable the fitting of outside valve gear. Hornby Dublo’s first two locos had no o/s valve gear but they were planning to introduce the ‘Duchess of Atholl’. H0 wheels measure 20.6 mm over the outside of the tyres. A typical width between cylinder centres of a British loco is 6’-8” which scales at 23.35 mm, which gives a width of 1.37 mm on each side to fit the valve gear. Three thicknesses of metal plus tolerance? It couldn’t be done, and still cannot. Continental locos with a wider loading gauge and lower platforms meant that model producers could ease the width over the cylinders to provide that space. 
     

    How often do you see a British outline H0 model with o/s valve gear? The only thing that is scale in H0 is the distance between the rails; everything else, for steam outline, is a compromise. This was certainly true of the Rivarossi Royal Scot.

     

    British H0 is feasible for diesel or electric outline but not steam.

     

    Ian R

     

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  5. 7 hours ago, Michael Edge said:

    The LSW C14 has slide valves, outside admission is normal for these. The LMS Garratts definitely had backward leaning return cranks but the valve rod is pinned above the valve spindle rather than below. 

     

     

    Another engine that I forgot was Big Bertha which had outside admission hence ‘backward cranks’ and radius rods below the valve rods. It was also unique* in having four cylinders but only two valves.

     

    *Unique until proved otherwise.

     

     

     

     

    7 hours ago, Tony Wright said:

    Lovely stuff Ian,

     

    Many thanks for showing us.

     

    Just so I get this right, for inside admission the return crank leans forward at bottom dead centre, and backwards for outside admission? 

     

    Which means I'm right about the LMS Garratts having backward-leaning return cranks, but wrong about the Fowler 2-6-2Ts.

     

    Regards

     

    True - as far as I know.

     

    Ian R

     

     

     

    • Like 2
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