The Baldwin DS-4-4-1000 were two models of four-axle diesel–electric switcher locomotives built by the Baldwin Locomotive Works between 1946 and 1951. The first models (56 locomotives) were powered by an 8-cylinder normally aspirated prime mover, but from 1948, a change was made to the second model powered by a 6-cylinder turbocharged engine. These two models replaced the VO-1000 in Baldwin's catalogue, and were in turn replaced by the S-12 in 1951.

Original owners

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 22–32 in 1960; rebuilt by EMD with 1000-hp 12-567C engines between February 1959 and April 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 experiment with Bunker C Oil and Diesel, rebuilt to standard specification and sold to Patapsco and Back Rivers Railroad #335 Baltimore and Ohio Railroad 49 376–399, 438–462 renumbered 9225–9273 Bessemer and Lake Erie Railroad 1 282 to Geneva Steel #38 Calumet and Hecla Mining Company 2 201–202 to Escanaba and Lake Superior Canadian Pacific Railway 11 7065–7075 built by Baldwin Locomotive Works; 1 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 940–949 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 to Patapsco and Back Rivers #348; 751 to 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 1066–1073, 1074–1082 Missouri Pacific Railroad (St. Louis, Brownsville and Mexico Railway) 8 9148–9149, 9162–9167 renumbered 1083, —, 1092–1097 Oakland Terminal Railway 1 101 Oliver Iron Mining Company 5 928–932 Patapsco and Back Rivers Railroad 8 337–344 Pennsylvania Railroad 136 5550–5590, 5968–5979, 9050–9079, 9122–9275, 9434 PRR Class BS-10a Reading Company 30* 700–729 St. Louis-San Francisco Railway ("Frisco") 4 238–241 Seaboard Air Line Railroad 27* 1435–1461 to Seaboard Coast Line Railroad #51–73 Southern Railway 5 2285–2289 Southern Pacific Company 10 1393–1402 Terminal Railroad Association of St. Louis 2 602–603 Union Pacific Railroad 5 1206–1210 United States Army Corps of Engineers 2 L-4, W8380 U.S. Steel, Carnegie-Illinois Steel Division 3 74–76 U.S. Steel, Geneva Steel Division 6* 27–32 Wabash Railroad 1 304 rebuilt as calf (without a cab) in 1961 after collision damage Western Railway of Alabama 1 630 Total 446 *Ordered Both 608NA & 606SC Models

Preservation • ATSF #2260 is preserved at the Museum of the American Railroad in Frisco, Texas.

• Canadian Pacific #7069 is preserved by a private owner and displayed at the Toronto Railway Museum in Toronto, Ontario.

• Missouri-Kansas-Texas #1006 is preserved at the Parsons Historical Society in Parsons, Kansas.

• Oakland Terminal #101 is preserved on the Niles Canyon Railway in Sunol, California.

• Reading #702 is preserved at the Reading Railroad Heritage Museum in Hamburg, Pennsylvania.

References

External links Baldwin DS-4-4-1000 roster Preserved Baldwin and Lima locomotives DS-4-4-1000 — Original owners