I,m building some 1:20 rolling stock and will use Bachmann trucks and body mount the couplers. I don’t have any right now to measure and compare to all the drawings I have. The drawings show anywhere from 45" - 54" end of car to centerline of truck depending on truck type. Not too concerned about ‘exact’ dimension, something close and won’t interfere with the truss rods.
P.S. Could I use a tender truck for comparision from a 4-6-0 even though it’s supposed to be 1:22.5?
Thanks
Randy
Randy
The tender truck on the 4-6-0 is a shorter wheel base than the regular truck. You said before, I believe that you were going to use the trucks that come with the B-mann flat car kits. I have used those on my scratchbuilds and they work just fine. On my boxcars they are mounted 2 1/2 inches back from the end of the car. On my flat cars they are back 2 1/4 inches. On the derrick that I just built they are at 2 3/4 inches. All work fine together with body mounted couplers running on 10 foot and larger diameter curves. On a D&RGW Class 8 box car the correct distance is 46 1/2 inches which scales out to 2 5/16 inches in 1:20.3. If you are going to use the B-mann couplers then I would go 2 1/2 just to give enough clearance for the centering rod on the coupler. Also the B-mann truck mounts on a 1/4 inch pin. I use a dowel and then drill it for a screw and washer to retain the truck. Cut the dowel so that it is only about 1/16 longer than needed to reach through. If you need pics let me know.
Ron
Thanks Ron, I was hoping you would see this. So 2 1/2" will be it on these boxcars. Thought I’d better ask before glueing the bolsters on.
Thanks