By design LGB will make the tighter curve, however there are a few drawbacks:
1. Looks a bit strange with all the overhang.
2. Causes excessive wear on the wheel flange and bearings due to the lateral thrust.
3. Causes additional wear on the railhead.
4. Causes extra drag resistance to the engine, excessive wear in the motor bearings.
5. Depending upon which kind of couplers you are using it can cause unscheduled car disconnect. Can also cause stress damage to the coupler mounts.
The same damage occours weather you use four foot diameter, or four hundred foot diameter, it just happens faster on the smaller/tighter diameters. The only way to avoid the wear and tear is to put the train in a hermetically sealed showcase, but where is the fun in that?
Now; after doing all this preaching about why not to do it, I will fess up: I have a 2.75 ft deiameter "S" curve right in the middle of a 19.5% grade on a bridge. The only things I have that can negitiate that curve/grade combination is a Bachmann streetcar and a "handcar" (speeder?), both have very short wheel bases. It was something I wanted to do and was aware of the associated problems, and went into it with the clear knowledge of the potential system failures. Remember this is a hobby, and hobbies are supposed to be FUN! Now get outside and play in the dirt.
Tom Trigg
Age is only a state of mind, keep the mind active and enjoy life
POWDIE wrote: They are also LGB.
LGB corporate philosophy insisted upon the oft called "4 footrule" or "R-1 rule"...EVERY product they made HAD to go around an R-1 circle..... How silly they looked doing so is up for debate, but they went. So the answer to your question is-- they'll run just fine.
Sure they can. Just don't highball through that section or you will wind up with this -
-Brian
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