@Trainlover9943 posted:I'll throw another monkey wrench in this discussion. What about 044.5 in Fastrack curves? It's 048 full curves on each end and 036/048 half and quarter curves in the middle.
That's not 44.5. That's o48 full curves on each end with o36/o48 half curves in the middle.
Mixing curves doesn't change the overall radius. It just gets tighter where the smaller radius curve is.
IMO if you can't have o54 curves, go with a smaller locomotive like a Mikado.
I own a scale berk and run it on my o60 outer loop.
I have tried it on my o48 inner loop and on top of looking hideous because the drivers on the inner two axles are hanging in mid air. The pilot wheels rub the steamchest.
Just because it can doesn't mean you should . Ive seen images of o scale locos with paint scraped off of the counterweights on the wheels from the drive rods rubbing.
The other risk is potential issue with the wires going to the I.R. drawbar as the are pushed and pulled against the chassis of the locomotive
