If you've been around trains for any length of time, you've heard someone mention an "SD45-2" or maybe an "AC60" or even a GG1. If you don't understand all of that, it's ok, we're going to give you some insight into how what locomotive designations mean and how you can get an idea of what you're hearing when you're out on the main line.
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Show Bibliography:

1. EMD High Cab GP39-2. Photograph. Belmont, James. Flickr.com. Accessed 6/13/24. https://www.flickr.com/photos/151089709@N08/49082027641

2. EMD: GP39-2. Readingmodeler.info. Accessed 6/13/24 https://www.readingmodeler.info/index.php/articles/89-locomotive-reference/road-locomotives/189-emd-gp39-2

3. ALCO Locomotives. RailroadMichigan.com. Accessed 6/13/24 https://www.railroadmichigan.com/alco.html

4. GE AC6000CW at Erie, Pennsylvania by Dan Gaines. Photography. Accessed 6/13/24. https://www.railpictures.net/photo/519606/

5. SCL 7016 Seaboard Coast Line GE C30-7 at Cayce, South Carolina by TC Caughman https://www.railpictures.net/viewphoto.php?id=238539&nseq=421

6. GE U25B. trains-and-locomotives.fandom.com. Accessed 6/13/24
https://trains-and-locomotives.fandom.com/wiki/GE_U25B

7. EMD "E8" Locomotives. Burns, Adam. American-Rails.com. Accessed 6/13/24 https://www.american-rails.com/7812.html
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