FP7A SLSF 50 F7A SLSF 50 Location unknown. April 1971. Photograph by Mac Owen. Edit 3/6/2024: Locomotive is actually a FP7A not a F7A. Note the four additional feet between the first engine room porthole and the first louvered vent on the side. Locomotive was originally numbered SLSF 5050. It was renumbered in 1968 to SLSF 50. The renumbering was done to assign unique numbers to all company equipment when a new International Business machines (IBM) computer and equipment tracking system was installed. Amended locomotive model and renumbering information narrative. MKD
FP7A SLSF 41 (SLSF 5041), EMD, 1500 HP FP7A SLSF 50 (SLSF 5050), EMD, 1500 HP Attached are the two Frisco FP7A pictures that are in my "Enid" negative collection. Again, here are two old Frisco warriors that served long and well. And again I call attention to the details evident on these close-in roster shots that would be appropriate additions to your models. The rotary beacon on the cab roof, the whip SLSF 41 and "nail" on SLSF 50 radio antennas on the cab roof, the brake air lines and multiple unit (MU) hoses, the lifting-type spark arrestors, the various grab irons and lifting rings, the dual headlights, the steam generator cap on the roof at the rear, and the 5-forward Leslie Tyfon horn. Is that a three or five horn unit on SLSF 50? Note the side skirts have been removed, as they were from all of the Frisco F-units by this time. SLSF 41 appears in a well weathered austerity black and yellow paint scheme. Though I am a big fan of the original Frisco black & yellow scheme worn by all the F-units, I never liked this modified scheme, in particular when it is this beat up. Yuk! In HO scale, the new Athearn Genesis and the Intermountain FP7As are the best models. The old Atlas FP7A model is also out there, but it is really closer to a FP9A. The twelve Frisco FP7As were numbered SLSF 5040-5051, delivered in late 1950 and early 1951. Here we have pictures of the second unit, and the second to last unit. Ken
I will have to find my old brass Hallmark HO FP7A in the basement to compare my paint job from years ago to your great photograph of SLSF 50. I saw it go through Dixon, MO many times. F3Au (F37) SLSF 62 was also a frequent visitor on trains No 33 and No 34. I modeled it using a metal Cary shell on an Athearn drive.
