my ESPEE MODELERS ARCHIVE
California's Railroad to the U.S. 1861 - 1996
EMD F units
Texas and New Orleans
EMD F Units: I have been working on the details of the system F Units on and off for over a year now. It is a very complicated history of transfers and renumberings. I have yet to finish the pages, but have decided to upload what I have done so far.
Cotton Belt was the first to receive EMD F units, in the form of five 4 unit FT ABBA sets delivered in June and July of 1944.
Southern Pacific then received 20 F3 four unit ABBA sets from May 1947 thru January 1948 numbered #6100A,B,C,D - 6119A,B,C,D. and another 20 F3 four unit ABBA sets from December 1948 thru February 1949 numbered #6120A,B,C,D - 6139A,B,C,D
These were transferred to a power short Texas and New Orleans becoming their F3A's #300 - 337 and F3B's #500 - 537.
Some of these were later rebuilt into T&NO F9Am's #600 - 637 and F9Bm's #700 - 725.
Beginning in 1949, SP began to receive 120 of the new EMD F7 model, from June 1949 thru October 1949, delivered in ABBA sets and numbered 6140A,B,C,D - 6169A,B,C,D.
In December of 1949 SP decided the alpha suffixes had to go, and so a general renumbering of all system F units took place. The F A or cab units were given 61** numbers and the F B units or boosters were placed in the 8*** series.
More F7 units arrived starting in December 1949 and continuing thru to July 1953. These were numbered in the new singular unit series, and delivered to SP, SSW and T&NO
Southern Pacific originally numbered F units in sets of four, with one number and an alpha suffix. F A or cab units were suffixed A and D, F B units or boosters were suffixed B and C.
In 1949 SP decided the alpha suffixes had to go, and so a general renumbering of all system F units took place. The F A or cab units were given 61** numbers and the F B units or boosters were placed in the 8*** series.
Black Widow References:
also the Searchable Magazine/Book Database
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