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I am trying to but together as many Providence and Worcester engines as I can, weather painted in thier scheme or at least having that model for future painting. My question is what is the big difference between a GP 40-2 and 40-3? I have at least two dash 2s that could be used but they have Dash 3s.
Dash 3 is not an EMD designation. They are upgrades to existing models, most likely a GP40 or GP40-2, your best course of action is to compare photos of the prototype to different models to see with is closest and go from there.
from what i've read online it seems to be an upgrade in electronics that makes it a dash 3.
The 3 GP40-3's that the PW has were originally built as GP40's. The 3001 was built as B&O #4021 in Sept.1971, the 3002 as SAL #617 in May 1966 and the 3003 as SAL #1571 in Dec. 1969.
You can find photos of these units at
http://www.rrpicturearchives.net/locoList.aspx?id=PW
For me, I would use an Atlas GP40 as the starting point and using the photos above to detail and paint them for the PW.
Dan
The upgrade was only an electronic upgrade. There shouldn't be any external differences.
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