I am fascinated by shortlines.... for lots of reasons. There are those who optimistically number their equipment with 3 and 4 digits and then there are those modest enough to start with 1.
The Davenport, Rock Island and Northwestern is one of those little lines. I caught this shot of Alco switcher #1 from a passing train while riding along the Mississippi River... and of course the sun was in exactly the wrong place.
Thanks to who help resolve the identity of this engine since different internet sites have it differently tagged. It appears to be an S3.
different web sites give different answers. S2 per RR pix dot net... DAMN! devArt won't let me include the full URL... go to shortlines and DRI S3 per Don's Depot Does anyone really know?
I was told that the difference between S1/S3's and S2/S4's is that the former two have a longer (wider) front radiator section. Difference between the S1 and S2, and between the S3 and S4, is the type of trucks. Confusing.
(Oh, S1's and S3's are 600 horsepower, while S2's and S4's are 1,000 horsepower.)
I can't help it if I'm a walking ALCo encyclopedia.
This one is either an S1 or S3. If you look at this pic of an S2 here [link] (yes that's me) you can see that the radiator is much longer, and there is one less engine door than on the S1/S3.
I get my info from the Field Guide to Trains of North America, by Gerald Foster. Google actually has the page I'm referring to in their Books preview here [link] (click "Preview This Book" at the top left and scroll to Page 6) It's a great book and it's helped me on numerous occasions in the field when I get confused.
S2 per RR pix dot net...
DAMN! devArt won't let me include the full URL... go to shortlines and DRI
S3 per Don's Depot
Does anyone really know?
(Oh, S1's and S3's are 600 horsepower, while S2's and S4's are 1,000 horsepower.)
I can't help it if I'm a walking ALCo encyclopedia.
Unless you already are doing that and it's not helping.