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 Trainorders.com is asserting that reequipping a steam locomotive with a Delta training truck required also a new frame. I have never heard nor read anything to indicate that the Frisco's 1040's received new frames when they were "modernized" with increased driver diameter, larger sand domes, cross-compound air pumps, etc., nor of anything like that when the 4000's were acquired from the PRR and IHB.

    Have any of you ever heard such?

    Gordon
     
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  2. Karl

    Karl 2008 Engineer of the Year Frisco.org Supporter

    I looked through the 1930 Locomotive Cyclopedia, and it seems that GSC offered an “after market adapter cradle” which would allow for the conversion to a Delta trailer. See Fig 1737. It appears that the conversion could have been accomplished without the need for an entirely new frame.

    delta_trailer_1930_loco_cylopedia.jpg
     
    Last edited: Oct 26, 2022
  3. gbmott

    gbmott Member

    Thanks very much Karl, I think something like this is far more likely to be the answer than new frames.
    Gordon
     
    Sirfoldalot likes this.
  4. fredman23

    fredman23 Member

    Isn't General Steel Castings the company that said they could cast everything for a locomotive except the fireman and engineer?
     

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