Zerogee
Clencher's Bogleman

Thinking about very small layouts, Feldbahn stock and suchlike, reminded me of a question that I may have asked here before, but I think bears more discussion....
Has anyone here actually used (in 45mm gauge) any curves TIGHTER than LGB R1? I'm thinking of things like Bertram Heyn's "Radius 0" track, or the very tight circles (right down to about 12" radius I think) that Aristo (used to?) make for putting round barrels and such?
I know that LGB Feldbahn mechanisms and rolling stock will handle sub-R1 radii, though I do recall someone posting that an LGB Feldbahn Steamer could only be run bunker-first on very tight radii because of coupler lock otherwise (due to the long rear overhang caused by the rear motor position). But what is the smallest radius that a STANDARD (ie: non-Feldbahn) LGB 4-wheel chassis block will handle, ignoring any potential coupler problems for the moment?
If you have, say, a normal Stainz motor block, will it run on anything sub-R1 without excessive flange rubbing (oo-er missus....)?
Any experiences with such matters welcome!
Jon.
Has anyone here actually used (in 45mm gauge) any curves TIGHTER than LGB R1? I'm thinking of things like Bertram Heyn's "Radius 0" track, or the very tight circles (right down to about 12" radius I think) that Aristo (used to?) make for putting round barrels and such?
I know that LGB Feldbahn mechanisms and rolling stock will handle sub-R1 radii, though I do recall someone posting that an LGB Feldbahn Steamer could only be run bunker-first on very tight radii because of coupler lock otherwise (due to the long rear overhang caused by the rear motor position). But what is the smallest radius that a STANDARD (ie: non-Feldbahn) LGB 4-wheel chassis block will handle, ignoring any potential coupler problems for the moment?
If you have, say, a normal Stainz motor block, will it run on anything sub-R1 without excessive flange rubbing (oo-er missus....)?

Any experiences with such matters welcome!
Jon.