David Johnson Wrote:
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> Both types have the main rod connecting to the
> third axle.
>
Hi David, you mention something that has puzzled me. Why did most of the Rio Grande NG Consolidations have the main driver connected to the second axle, but some to the third? There’s always a reason for such things, and perhaps it’s buried in your driver spacing dimensions? The piston travel would be identical for drivers of the same size, but the leverage may be different?
Cheers from a non-tech type,
Ralph