Dixie Line
The Nashville, Chattanooga, & St. Louis rostered 23 F7A and eight F7B units, built 1949-51. Mainline freight and passenger trains were dieselized with GP7s and F units starting in 1948 with the last steam operating in 1953. It was merged into parent Louisville & Nashville in 1957. Linn H. Westcott photo
It’s interesting that, instead of rostering a separate group of F-units for passenger service, NC&StL F7A’s all had water tanks and all the F7B’s had steam generators.