USRA 2-10-2 light rebuilt

[Schraddel]

Do you do anything to test how your enhancements to the firebox and injectors, etc, affect the loco's ability to go around curves? A 2-10-2 is a big loco, of course, and we shouldn't expect too much here, but I do know that a Bachmann light USRA 2-10-2 will go around at least a 26 inch radius curve.

Yes jwb you are right, i do some testing. For me i set my standard, that a loco should negotiate a 600mm radius (app. 23.6 inch) as "technical minimum radius". Do not ask how an big loco looks like in such an radius.


I did the same with my Spectrum 2-10-2 and she is still able to negotiate the 600mm radius.

Here is something about funny testing:


The running gear of the brass 2-10-2 in a 415mm radius. The pilot truck made it , but the wheels touched the cylinder blocks. The rear truck not, the inner wheels got "airtime".


No and definitely no, there is no way. As you can see the flangeless drivers do no lateral movement and thus caused the rods to made a W-shaped aligment and at least binding.

Lutz