UnionPacific844
New Member
What is the radius for the Union Pacific Big Boy and 4-12-2s that I want to run at the Glendale Model Railroad Club.
Union Pacific Big Boy and 4-12-2
- Thread starter UnionPacific844
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D&J RailRoad
Professor of HO
It depends on who makes the Big Boy. The J9000 (4-12-2) by MTH can do 22" radius. It can be set to rigid frame which widens the minimum curve to 40".
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