EMD F2

The EMD F2 was a freight-hauling diesel locomotive built by General Motors Electro-Motive Division between July 1946 and November 1946. It succeeded the FT model in GM-EMD's F-unit sequence, and was replaced in turn by the F3. The F2 was in many respects a transitional type between those two; it kept the 1,350 hp (1,010 kW) rated D8 generator from the FT due to late development of the new D12 generator intended for the F3, but in a revised carbody design and internal layout that would be continued through the rest of the F-unit series. 74 cab-equipped lead A units and 30 cabless booster B units were produced.
There are no reliable recognition features for an F2. They were built with what has become known as 'Type 1' side panels, with three portholes and no filter grilles, but this was carried over into early F3 production and in any case could be changed later by the customer. Like most F3s, they were built with small side numberboards. They, and all subsequent F-units, are readily distinguished from the FT by having two exhaust stacks instead of four, and by having no large overhang on the end of the B units, while the trucks were a little further away from the other ends.
They also had four radiator fans at the center of the unit next to each other in line on the roof instead of two at each end. This external feature was the result of a major change in internal arrangement, the replacement of all mechanical and belt-drives for radiator fans and traction motor blowers with electric motors. Power for these accessories was produced by a new D14 three phase alternator built into the main DC generator, called a "companion alternator". This device has been used in all later EMD road locomotives to the present.
All F2's were scrapped, making them the only EMD F-unit model with no extant examples. At least one former FNM F2A was spotted rotting away in a scrapyard in Huehuetoca, Mexico in 1991, but it was in very poor condition and was eventually scrapped before the end of the decade.
== Original owners ==
Railroad 	Quantity
A units	Quantity
B units	Road numbers
A units 	Road numbers
B units	Notes
Atlantic and East Carolina Railway 	2 	— 	400–401 	— 	
Atlantic Coast Line 	12	12	324–335 	324B–335B 	All units built with steam generators
Boston and Maine Railroad 	18	3 	4224A–4226A, 4250–4264	4224B–4226B	
Chicago, Burlington and Quincy Railroad 	10	– 	150A–154A, 155C–159C 	— 	
Chicago, Rock Island and Pacific Railroad 	12	— 	38–49 	— 	
Minneapolis and St. Louis Railway 	2 	1 	147A,C 	147B 	All rebuilt to 1500 hp GP9M in 1957
New York Central Railroad 	2 	— 	1604–1605 	— 	
Southern Railway (Alabama Great Southern Railroad)	2 	— 	6700,6701 	 	
Both units equipped with steam generators 	 	 	 	 	
Ferrocarriles Nacionales de México 	14	14	6200A–6213A 	6200B–6213B	6210AB-6213AB built with steam generators
Totals 	74	30	 	 	
== Gallery ==
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Category:EMD locomotives
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