Baldwin DS-4-4-1000

Baldwin Locomotive Works

Industry	Locomotive manufacturing
Founded	1825
Fate	Defunct
Headquarters	Philadelphia , United States
Products	Locomotives, including the DS-4-4-1000 series diesel-electric switchers

{{Infobox Locomotive |name=Balwin DS-4-4-1000-SC (606SC) |powertype=Diesel–electric |image=An Old PRR Baldwin Switcher (25772177945).jpg |caption=Pennsylvania Railroad DS4-4-1000-SC #5586 at Conway Yard, Conway, Pennsylvania (date unspecified) |builder=Baldwin Locomotive Works |buildmodel=DS-4-4-1000 (606SC) |builddate=January 1948 – November 1951 |totalproduction=446 |aarwheels=B-B |gauge= | length = | width = | height = | locoweight = |primemover=Baldwin 606SC |rpmrange=maximum 625 rpm |enginetype=Four-stroke diesel |aspiration=Turbocharged |displacement= per cylinder
total |maxpoweroutput= |maxtractiveeffort= |maxrpm=maximum 625 rpm |maxspeed=N/A |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort= |maxtractiveeffort=

The Baldwin DS-4-4-1000 series consisted of two variants of 1,000 horsepower four-axle diesel-electric switcher locomotives produced by Baldwin Locomotive Works between 1946 and 1951. The first group of 56 units was equipped with an 8-cylinder normally aspirated engine, while the later version introduced in 1948 utilized a more advanced 6-cylinder turbocharged prime mover. These locomotives replaced the earlier Baldwin VO-1000 model in Baldwin's lineup and were themselves succeeded by the Baldwin S-12 starting in 1951.

608NA (Normally Aspirated) engine

Railroad	Quantity	Road numbers	Notes
Belt Railway of Chicago	1	405
Copper Range Railroad	2	100–101
Detroit Terminal Railroad	1	103
Erie Railroad	2*	600–601
Missouri-Kansas-Texas Railroad	11	1000–1010	renumbered to 22–32 in 1960; rebuilt by EMD with 1000-hp 12-567C engines from 1959 to 1960
New York, Chicago and St. Louis Railroad ("Nickel Plate Road")	2	100–101
Norfolk Southern Railway	2	1001–1002
Reading Company	14*	26–39
St. Louis Southwestern Railway ("Cotton Belt")	5	1023–1027
Seaboard Air Line Railroad	8*	1417–1424
U.S. Steel, Geneva Steel Division	6*	21–26
Western Maryland Railway	2	133–134
Total	56

606SC (Turbocharged) engine

Railroad	Quantity	Road numbers	Notes
Akron and Barberton Belt Railroad	1	26
American Smelting and Refining Company	2	101–102
Atchison, Topeka and Santa Fe Railway	41	2200 (second),2260–2299
Atlanta and West Point Rail Road	2	676–677
Baldwin Locomotive Works (test)	1	100DF	Dual fuel test using Bunker C Oil and Diesel, later rebuilt to standard and sold as Patapsco and Back Rivers #335
Baltimore and Ohio Railroad	49	376–399,438–462	renumbered as 9225–9273
Bessemer and Lake Erie Railroad	1	282	transferred to Geneva Steel #38
Calumet and Hecla Mining Company	2	201–202	transferred to Escanaba and Lake Superior
Canadian Pacific Railway	11	7065–7075	manufactured by Baldwin Locomotive Works; one unit preserved in Toronto (7069)
Central of Georgia Railway	2	36–37
Central Railroad of Pennsylvania (Central Railroad of New Jersey)	3	1073–1075
Chicago and North Western Railway	5	1018–1022
Chicago Great Western Railway	10	32–41
Chicago, Milwaukee, St. Paul and Pacific Railroad ("Milwaukee Road")	10	1692–1697,1901–1904	renumbered as940–949
Chicago, St. Paul, Minneapolis and Omaha Railway ("Omaha Road")	2	99–100
Erie Railroad	15*	602–616
Georgia Railroad	1	921
Ironton Railroad	2	750–751	750 later became Patapsco and Back Rivers #348;751 became Conrail #8354
Kentucky and Indiana Terminal Railroad	2	53–54
Lehigh Valley Railroad	8	140–148
Long Island Rail Road	1	450
Minneapolis, St. Paul and Sault Ste. Marie Railroad ("Soo Line")	2	311–312
Missouri Pacific Railroad	17	9120–9127,9133–9141	renumbered as1066–1073,1074–1082
Total	446

*Units ordered for both the 608NA & 606SC types

External links

• Baldwin DS-4-4-1000 inventory
• Preserved locomotives by Baldwin and Lima
• DS-4-4-1000 — Initial purchasers