Wes Camp on Trainorders.com 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? Gordon
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.
Thanks very much Karl, I think something like this is far more likely to be the answer than new frames. Gordon
Is not General Steel Castings the company that said they could cast everything for a locomotive except the fireman and engineer?
