Winger posted:I like wise bought a diesel that was rated for O54. Put it on a make shift track I had on the floor which I was playing with granddaughter on.
After a few test laps the traction tire came off. Replaced it came off again. Then it dawned on me that I was running on O-36 curves. No problem on O-60.
That's my story and I'm sticking to it.!
Regards,
Mike
I take factory curve recommendations as merely a suggestion. Often a locomotive will be rated for, say, a 31 curve but will throw tires, so it really runs best on the next wider curve. Or the overhang will be so odd looking on the tight curve it just doesn't look right. Then again, I have a few that run just fine on tighter curves than they are rated for. Go figure. Nothing about O scale is standard.