> > the lack of flanges...<snip> a common compromise for scale model
> > locomotives <skip>
> It is a combination of understanding minimum radius curve requirements
> and engineering during design and building.
> Jim Kindraka
what changes in the length of engine is required to make room for those
flanges. In
other words would SHS have had to lengthen the engine if all the drivers had
flanges?
Bob Were
Roberto'.....Model steamers almost always have oversized flanges since their
weight is so much less than the real locos. In some real locos, the
distance between axles is such that the real flanges are very close
together. In a model of this loco, the oversize flanges on the model will
interfere with each other. Two solutions exist: (1) blind drivers, or (2)
increase the axle spacing a tad. If the axle spacing is increased (about
5-10% sometimes), then the boiler length is also increased by some similar
amount in order to keep all the proportions looking correct. So the overall
length of a steam loco might change a bit under these circumstances. If a
real loco had generous axle spacing, then neither compromise would be needed
in the model. Cheers...Ed L.
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