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Discussion in 'Steam Traction' started by 61624, Apr 6, 2018.

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  1. pmh_74

    pmh_74 Part of the furniture

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    So now you can add type approval for a new loco design to the list as well...
     
    pmh_74, Dec 6, 2023
    #121
    Jamessquared likes this.
  2. class8mikado

    class8mikado Part of the furniture

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    Print Estimator/ Repository of Useless Informatio.
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    In for a penny...
     
    class8mikado, Dec 6, 2023
    #122
  3. RAB3L

    RAB3L Member

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    You might be surprised by the top speed of a particular 9F, reached descending Hatton in the 1980's.
     
    RAB3L, Dec 6, 2023
    #123
    ianh likes this.
  4. acorb

    acorb Part of the furniture

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    Indeed, but I suspect a 9F would be limited to 50 mph based on wheel diameter - but derogation could be sought for 55 or 60. That hasn't prevented 48151 from having a very useful career though and I think a 9F would also prove very useful on the mainline, just based on haulage capability. The S&C, Welsh Marches or even Highland Mainline would all be useful secondary routes where a 9F could take a viable payload.
    I believe JH looked into certifying 92212 when he first acquired it, but the hurdles were too great.
     
    acorb, Dec 6, 2023
    #124
    26D_M likes this.
  5. marshall5

    marshall5 Part of the furniture

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    The GWR specified "thin" flanges on the wheelsets of several of their classes:
    20231206.jpg
    Ray.
     
    marshall5, Dec 6, 2023
    #125
    weltrol, Kinghambranch, Bluenosejohn and 1 other person like this.
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