mrennie wrote:To make a model as accurate as the FEF-3, it would be absolutely essential to purchase the drawings from the NWHS. As far as I know, they are the only source, and custodians, for the original mechanical drawings (which might be why they charge so much for them). I, personally, wouldn't even contemplate building the loco "by eye" using only photos and "folio" drawings as guides. Other people do that and end up with models that have incorrect dimensions and parts that don't line up properly (pistons rods that aren't even centred with the cylinders, etc.). That's not for me, which is why I abandoned the idea of doing 611.
You're also right about the problem of a suitable route, although I suppose 611 could, at a pinch, run on the NS Coal District route.
Why the need of copies of original shop drawings? Why not using something with detail but not so accurate (and so costly), like the "Steam Locomotives" ciclopedia Vol 1 used by layout loco builders. Those books have very accurate measurements. They even have a few pictures of cab views of a few of the locos portrayed.
I think that very accurate measurements from shop drawings will dilute when you have the model finished and ported to the game scale.
What a designer needs are good pics (real and museum if available), side, top, front, back and a few cross sections views (with full measurements) along the loco length, a couple pictures of the cab (and a description of some of the controls).
And the most important, the physics parameters of that locomotive. If you do not have this last information, you will loose all accuracy gained with the model.
What is needed is something like the Antoni Moragas books (Spanish locos) but for USA locomotives. The ciclopedias help in that department.
http://www.amazon.com/Model-Railroader-Cyclopedia-Vol-Locomotives/dp/0890240019/ref=sr_1_sc_1?s=books&ie=UTF8&qid=1453597928&sr=1-1-spell&keywords=Steam+locomotives+ciclopediaBut it is only my opinion
