Hi Stan
Me and another guy, Brian Fowler, are working towards building models of EBT equipment using 1.25"-gauge track. For the sake of convenience, we agreed to use a scale factor of 1:32 - yes, this means the actual model gauge should be 1-1/8", but we are more concerned about availability of wheels and track, while at the same time it is not difficult to source 1:32 scale vehicles and figures. To illustrate my point about wheels, an NWSL O-scale code 172 passenger wheelset is an almost perfect match in diameter AND tread width for representing the 24"-diameter prototype wheels used on the EBT. I'm primarily interested in O-scale standard gauge (NYC Steam-era to be precise) but building 36"-gauge prototypes to run on my existing 1.25"-gauge track will allow me to scratch that EBT itch without building a complete new layout. I also have cast whitemetal passenger and archbar trucks for NZ Railways 42"-gauge equipment that were made to run on O-gauge track and can be used under EBT equipment until I can build more-accurate replicas.
In case anyone is wondering why we didn't go with 1:29 scale, which is more accurate for 1.25"-gauge track, this was driven by the requirement to scratch-build everything, and it is a bit easier to do the math in one's head for 1:32 scale than it is for 1:29 when calculating sizes of wood strip, styrene shapes etc.
