Delta Trailing Trucks on 1040's and 4000's

Discussion in 'Motive Power' started by gbmott, Oct 26, 2022.

  1. gbmott

    gbmott Member

    Wes Camp on is asserting that reequipping a steam locomotive with a Delta training truck also required a new frame.

    I have never heard nor read anything to indicate that the Frisco's 1040s received new frames when they were "modernized".

    The modernization included increased driver diameter, larger sand domes, cross-compound air pumps, etc..

    Nor have I seen anything like that when the 4000s were acquired from the Pennsylvania Railroad (PRR) and Indiana Harbor (IHB) Railway.

    Have any of you ever heard such?

    Last edited by a moderator: Feb 10, 2024
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  2. Karl

    Karl 2008 Engineer of the Year Supporter

    I looked through the 1930 Locomotive Cyclopedia, and it seems that General Steel Castings (GSC) offered an “after market adapter cradle”.

    This would allow for the conversion to a two-wheel or four-wheel Delta trailer.

    See Figure 1737.

    It appears that the conversion could have been accomplished without the need for an entirely new frame.

    Last edited by a moderator: Feb 10, 2024
  3. gbmott

    gbmott Member

    Thanks very much Karl,

    I think something like this is far more likely to be the answer than new frames.

    Last edited by a moderator: Feb 10, 2024
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  4. fredman23

    fredman23 Member

    Is not General Steel Castings the company that said they could cast everything for a locomotive except the fireman and engineer?
    Last edited by a moderator: Mar 11, 2024

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