Miggy posted:
Quick Quesiton: Why- "Funny how the different scales sizes look when photographed: F3 looks larger than the steamer, Baby Ruth looks like Mini on the F3, but correct size with the steamer, i have soo much to learn.
Scale versus gauge is a fascinating subject. As I've mentioned elsewhere, my hypothesis is that the original 1.25" gauge was used for ease of production measurement, and the original 1/48 scale was used for ease of scaling down.
Ever wonder why so many European diecast cars are 1/43 scale? Because 1.25" gauge track scales out to 4' 8 1/2" gauge in 1/43 scale, also known as 17/64" scale.
Add 27" diameter curves and equipment that is scaled down (nearly to S scale's 1/64 ) to use that sharper curve, and all sorts of fun ensues.
As a side note, 1/48 scale streetcars generally use a 24" diameter curve, so O27 isn't that far off.
Incidentally, Matchbox, Hot Wheels and Model Motoring-Thunderjet-A/FX et cetera slot cars are scaled more-or-less to 1/64 scale...
Mitch