Hi Lee, yes! You and your computers are correct. I checked it with the computer I keep in my forebrain.
But I have two other questions about locomotive dimensions that might be of more substance.
First is about cab dimensions. I've measured some cabs in photographs with nice side views, and I find that cabs are longer, by about 4 inches, than the dimensions given in folio sheets. For example, #13 is listed as having a cab that is 5' 2" long, but in the well-known photo of #13 with the intertwined lettering, in central City , 1903 (p. 66 of Coleman, Vol. VI, NG pictorial) , by comparing to the driver spacing I get a cab length of 5' 6-7". Similarly, the photo of #9 (p.46) also with intertwined lettering, ca.1910, gives a cab length of 6' 4", while th folio sheet shows 6' even. The same thing appears to be true with cab width. That's harder to get good measures of in photos, but in a couple of cases where I can get it accurately I find again that the actual width dimension is somewhere around 4-5" bigger than listed.
This makes me wonder if maybe the folio dimensions are inside dimensions? I got into this because the listed dimensions for #30 are smaller than the cab on the Westside C-16 model, but that model looks about right compared with the #30 photos I know, so I began measuring them. Does anyone have thoughts on this?
My second question is about locomotive boiler diameter. I know well the admonition not to measure dimensions from the drawings, they are schematic only, not scale. But it is true that the folio sheets all show the basic shape of the boiler without lagging, the forward-most boiler section is smaller in diameter than the smokebox, and it is this smallest section that has the dimensional marking for the boiler diameter. That would mean that a model, which of course has the fully lagged boiler, will be larger in diameter than the folio dimension.
Again, I'd be very grateful for thoughts on this question.
Cheers,
John
By the way, I'm excited that Jim is going to do a C-16 conversion, too! The more the merrier, and I'm sure I'll learn a lot from that project.
John Greenly
Lansing, NY