Please help Identify this locomotive and possible location is a free online Railroad Discussion Forum and Railroad Photo Gallery for railroaders, railfans, model railroaders and anyone else who is interested in railroads. We cover a wide variety of topics, including freight trains, passenger and commuter railroads, rail news and information, tourist railroads, railway museums and railroad history.


New Member
I have the attached photo of what I believe is an ALCO RDS-1. It is supposed to be at a military base (Navy ordnance depot) near Ogden, Utah during WWII. However the USAF marking seems to bring the date into question. Any thoughts are appreciated.



The United States Air Force was not created until 1947, so that photo can’t have been taken during WWII, which ended in 1945. These engines were all transferred to USN ownership around 1970, no matter where they were originally intended to be used.
Also, the engines weren’t even built until around 1952, even after the Korean war had wound down.
Last edited:


Looks like 8012 was built in 1942 as Atlanta & St Andrews Bay Railroad 903, then requisitioned by the Army and trucks converted, sent to Iran, then sent back to US after the war for service on a military base somewhere.



Well-Known Member
Hill AFB in Ogden is an Air Force logistics center, so it very well could have been in use there post WW2. is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to - An online railroad bookstore featuring a curated selection of new and used railroad books. Railroad pictorials, railroad history, steam locomotives, passenger trains, modern railroading. Hundreds of titles available, most at discount prices! We also have a video and children's book section. - An online model railroad bookstore featuring a curated selection of new and used books. Layout design, track plans, scenery and structure building, wiring, DCC, Tinplate, Toy Trains, Price Guides and more.

Affiliate Disclosure: We may receive a commision from some of the links and ads shown on this website (Learn More Here)