Which Bachmann On30 locomotives can use 18" radius turns?
I have a 2-6-0 which does ok my 2-4-4 forney does ok but the tail swing/over hang looks terrible I only run cars cupled to the front. all the porters I have run great. I have run the 2-4-4 & 2-6-0 on 15" they both derail
NM
In general, Bachmann designs all of their On30 models to handle the 18" radius EZTrack curves they provide in their sets. As noted by NM though, appearance suffers for some models. If you can make the space, it is better to use 22" curves instead for both operational reliability and appearance.
all but the forney will run an 18" radius. the forney needs a 22" to run reliably but don't do a "S" curve or you will toss cars from the track! if you can go larger than 36" and you can run the San Juan and MMI locos and cars with your bachmann trains