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Reply to "Traction Tires; A Necessary Evil, Or...?"

Adriatic posted:

There may be an issue with one traction tire. More specifically to powered trucks more than steam.

  A single traction tire could cause a steering bias.  Normally no big deal as the rails keep you straight.  But in turnouts, that isn't always the case. 

  I ran into this with some Marx turnouts and a truck that veered right and would force points open, but mostly simply climb guides and rails in an attempt to turn.  1 steamers pilot truck did it too.

I simply pulled those out, but thought the experience might be of interest, especially if a loco happens to be picking at points on one side or another after going to one tire.

Good point, hadn't thought of that.  I suppose that would always be a possibility.  But if a steamer's pilot truck did it too, I would suspect either out-of-gauge wheel sets, or a possible problem with the turnouts.

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