This is information on Santa Fe F-units originally presented in the Third Quarter 1991 Santa Fe Modeler. Included here are some updates from the original publication, particularly in the modeling area.
EMD F-unit - Wikipedia
EMD F-units are a line of diesel-electric locomotives produced between November 1939 and November 1960 by General Motors Electro-Motive Division and General Motors-Diesel Division. Final assembly for all F-units was at the GM-EMD plant at La Grange, Illinois, and the GMDD plant in London, Ontario.
Santa Fe's F-units (F3, F7, F9 and CF7 Rebuilds) - TrainWeb
To help follow the initial timing of the F-units arrival in the Santa Fe fleet, check out the Timeline and F-unit Phase Charts pages. To get some insights into the renumbering and accompanying configuration changes over time, see this Perspective
Santa Fe Railway Historical & Modeling Society - The F-Unit Pages
If you model any Santa Fe 300 Class F-unit assigned to Amtrak service during 1971-1973, it should have either a "ARGENTINE", "BARSTOW", or "CLEBURNE" maintenance shop stencil. Check prototype photos for these "modernized" Santa Fe F-unit releases for the correct maintenance shop stencil.
EMD F7 - Wikipedia
Although originally promoted by EMD as a freight-hauling unit, the F7 was also used in passenger service hauling trains such as the Santa Fe Railway's high-speed flagship trains, the Super Chief, & El Capitan, and the Ontario Northland's Northlander.
The Athearn Genesis F units have been available in numerous variations of the passenger and the freight schemes, and will be offered in many more. They use the Highliner shells and are finished beautifully.
Perspective on Santa Fe's F3 and F7s - TrainWeb
Santa Fe's Passenger F units were the most loved units that Santa Fe ever had. They were taken care of better than any of the other locomotives up to about 1961, when changes in management caused the Santa Fe to take a different course. After Mr Gurley's retirement, the newer management was in the mood to cut back. By 1961, all F-3
Santa Fe CF7 - Wikipedia
The Santa Fe CF7 is an EMD F-unit railroad locomotive that has had its streamlined carbody removed and replaced with a custom-made, "general purpose" body in order to adapt the unit for switching duty.
Santa Fe Railway Historical & Modeling Society - The F-Unit Pages
For most of four decades the F-units symbolized the Santa Fe. They vanquished steam, they served in every capacity from power for premier passenger trains to mainline freights to branchline and local freights and even to occasional use as switch engines. They are fondly remembered by those of us who photographed them in their later years.
EMD F-unit - Trains and Railroads
EMD F-units are a line of diesel-electric locomotives produced between November 1939 and November 1960 by General Motors Electro-Motive Division and General Motors-Diesel Division. Final assembly for all F-units was at the GM-EMD plant at La Grange, Illinois, and the GMDD plant in London, Ontario.