EMC Winton-engined switchers

Early Electro-Motive Corporation switchers were built with Winton 201-A engines; 175 were built between February 1935 and January 1939. Two main series of locomotives were built, distinguished by engine size and output: the straight-8, 600 hp (450 kW) 'S' series, and the V12, 900 hp (670 kW) 'N' series.
==600 hp (450 kW) S series==
The production S series locomotives are identical except for cast or welded underframes, which are identical to those used under the N-series 900 hp (670 kW) locomotives. The hood on the S series is shorter, and the locomotives have a characteristic, rounded-edged "satchel" in front of the radiator. The straight-8 600 hp (450 kW) Winton 201-A engine moved the exhaust stacks off-center to the engineer's left, while the N series' were central. The Winton-engined switchers can be distinguished from later EMD 567-engined units by small louvres at the top front sides of their hoods, as well as top-of-hood ventilation through several lifting vents rather than the large top grille of those later units.
The 600 hp (450 kW) series was much more successful than the 900 hp (670 kW) during this early period; 114 were sold.
==Pre-SC==
Two pre-production units were built in February 1935; they differed from full production units by having a hood that did not taper in toward the cab, and six rather than three small louvres on each top front hood side. They were delivered to the Delaware, Lackawanna and Western Railroad as Nos. 425 and 426. Both were re-engined with EMD 567 engines in 1962. One, 426, was purchased by the Delaware-Lackawanna Railroad and is on display at Steamtown National Historic Site in Lackawanna Railroad colors.
==SC==
43 cast-frame SC units were built between May 1936 and January 1939. They were delivered to a wide assortment of railroads:
#Atchison, Topeka and Santa Fe Railway: 4 locomotives, #2301, 2151–2153
#Inland Steel: 3 locomotives, #40, 42 & 44
#New York Central Railroad: 7 locomotives, #567-573 (CR&I)
#Boston and Maine Railroad: 6 locomotives, #1103-1108
#Chicago Great Western Railway: 3 locomotives, #5-7
#South Buffalo Railway: 2 locomotives, #50 and 51
#River Terminal Railway: 1 locomotive, #50
#Electro-Motive Corporation: 1 locomotive, #620 to Canton #20
#Philadelphia, Bethlehem and New England Railroad: 2 locomotives, #204 and 205
#Patapsco and Back Rivers Railroad: 3 locomotives, #51-53
#Minneapolis and St. Louis Railway: 1 locomotive, D438
#Missouri Pacific Railroad: 4 locomotives, #9000-9003
#Grand Trunk Western Railroad: 2 locomotives, #7800-7801
#Central Railroad of New Jersey: 4 locomotives, #1005-1008
One SC locomotive still survives: Missouri Pacific 9001 (as Dardanelle & Russellville 14, a later owner) at the Illinois Railway Museum it is not operational.
==SW==
76 fabricated welded-frame SW units were built between December 1936 and January 1939. Original owners included:
#Elgin, Joliet and Eastern Railway: 9 locomotives, #200-#208
#Reading Company: 6 locomotives, #10-15
#River Terminal Railway: 1 locomotive, #51
#Chicago and Eastern Illinois Railroad: 2 locomotives, #100-#101
#Philadelphia, Bethlehem and New England Railroad: 1 locomotive, #206
#Chicago and North Western: 1 locomotive #1201
#Inland Steel: 3 locomotives, #43, 45-46
#Chicago, Rock Island and Pacific Railroad: 29 locomotives, #500-#528
#Great Lakes Steel: 2 locomotives, #6 and #7
#Chicago, Burlington and Quincy Railroad: 6 locomotives, #9130-9135
#Buffalo Creek Railroad: 2 locomotives, #40-41
#Pennsylvania Railroad: 1 locomotive, #3908
#Steelton and Highspire Railroad: 1 locomotive, #32
#Lehigh Valley Railroad: 6 locomotives, #106-111
#Patapsco and Back Rivers Railroad: 2 locomotives, #61-62
#Missouri Pacific Railroad: 1 locomotive, #5 (UTSJ)
#Minneapolis and St. Louis Railway: 1 locomotive, D838
#Union Terminal Railway: 1 locomotive, #10 (UTSJ)
#Baltimore and Ohio Railroad: 1 locomotive #2 (B&OCT)
Two SW locomotives survive, but neither retains the original Winton engine. PB&NE 206 was reengined with a 567CR block (R for counter-clockwise revolution) in 1955. The locomotive operated on both the Maryland & Pennsylvania Railroad (as #23) and Stewartstown Railroad (as #11). Since 2014, it has operated under its original #206 on the Allentown & Auburn Railroad in Kutztown, PA. While it now has an EMD 567C block, it retains its EMC electrical system and early lifting hood vents.
Missouri Pacific #5 survives and operates as Thermal Belt Railway #1, repowered with a 600 hp (450 kW) Cummins diesel.
==900 hp (670 kW) N series==
These locomotives were all nearly identical, except for cast versus welded underframes. The 900 hp (670 kW) V12 Winton 201-A-engined NC and NW series locomotives can be distinguished from the less powerful 600 hp (450 kW) SC and SW because, although the underframes are identical, the hood on the N series is longer, leaving only a small amount of room before the front walkway. Many, but not all, N series locomotives have a short electrical box with sharp-angled corners in that location; this is easily distinguished by the lower, longer, rounded-cornered "satchel" of the SC and SW series. The other distinguishing feature from the S series is the central location of the twin exhaust stacks; the S series have them offset towards the engineer's left, because of the inline diesel engine.
==Pre-NC==
One experimental locomotive was built in March 1935 as a demonstrator, numbered EMC 518. It was assembled by Bethlehem Steel of Wilmington, Delaware. After demonstration purposes, it was sold to the Philadelphia, Bethlehem and New England Railroad in October as #203, later renumbered to 55; it was later sold to the Parrish Line Railway as their #10.
==NC==
Five NC locomotives were built. Some had General Electric electrical equipment, while others had Westinghouse, since EMC's own designs were not yet ready. This model did not have multiple unit equipment. They were:
#EMC S/N 647:1 (built January 1938): Great Northern Railway #5101 (later #5300) rebuilt to an SW1200 in 1955.
#EMC S/N 648:1 (built July 1937): Philadelphia, Bethlehem and New England Railroad #208.
#EMC S/N 649:1 (built July 1937): Philadelphia, Bethlehem and New England Railroad #209.
#EMC S/N 650 (built May 1937): Youngstown and Northern Railroad #201, to Elgin, Joliet and Eastern Railway #402 in April 1946, to Philadelphia, Bethlehem and New England #55
#EMC S/N 651 (built May 1937): Youngstown and Northern Railroad #202, to Elgin, Joliet and Eastern Railroad #408 in April 1946, to Marinette, Tomahawk & Western Railroad #408, then finally to the Sabine River and Northern Railroad as #408 before being preserved in the National Museum of Transportation in St. Louis, Missouri.
Category:Diesel locomotives
Category:Built in 1935
Category:Locomotives