I was looking at a deal on eBay and I'm wondering is there a place that lists what the minimum radius is for different loco's. It's only a deal if it can navigate my layouts, otherwise a very pretty shelf display.
No explicit database. But, most Märklin locos will run on 145mm. That's still a bit pushy. Some of the driver only, like an 0-6-0 will run down to 120mm but not most with a pilot or more drivers. If you are really concerned about reliable running, don't push the radii.
