| Baldwin DS-4-4-1000-NA (608NA) | |
| Powertype: | Diesel–electric |
| Builder: | Baldwin Locomotive Works |
| Buildmodel: | DS-4-4-1000 (608NA) |
| Builddate: | June 1946 – January 1948 |
| Totalproduction: | 56 |
| Aarwheels: | B-B |
| Primemover: | Baldwin 608NA |
| Enginetype: | Four-stroke diesel |
| Aspiration: | Normally aspirated, solid injection |
| Displacement: | 1979cuin per cylinder 15831cuin total |
| Cylindercount: | Straight-8 |
| Cylindersize: | NaN× |
| Transmission: | Electric |
| Generator: | DC generator |
| Tractionmotors: | DC traction motors |
| Poweroutput: | 1000hp |
| Locobrakes: | Air |
| Trainbrakes: | Air |
| Locale: | North America |
| Balwin DS-4-4-1000-SC (606SC) | |
| Powertype: | Diesel–electric |
| Builder: | Baldwin Locomotive Works |
| Buildmodel: | DS-4-4-1000 (606SC) |
| Builddate: | January 1948 – November 1951 |
| Totalproduction: | 446 |
| Aarwheels: | B-B |
| Length: | 46feet |
| Width: | 9feet |
| Height: | 142NaN2 |
| Locoweight: | 230000lb |
| Primemover: | Baldwin 606SC |
| Rpmrange: | 625 rpm max. |
| Enginetype: | Four-stroke diesel |
| Aspiration: | Turbocharged |
| Displacement: | 1979cuin per cylinder 11874cuin total |
| Cylindercount: | Straight-6 |
| Cylindersize: | NaN× |
| Generator: | Westinghouse 480DC |
| Tractionmotors: | Westinghouse 362-D, 4 off |
| Poweroutput: | 1000hp |
| Tractiveeffort: | 57500lb |
| Locobrakes: | Air |
| Trainbrakes: | Air |
| Locale: | North America |
The Baldwin DS-4-4-1000 were two models of four-axle 1000hp 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.
| Railroad | Quantity | Road numbers | Notes |
|---|---|---|---|
| 1 | 405 | ||
| 2 | 100–101 | ||
| 1 | 103 | ||
| 2 | 600–601 | ||
| 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 | |
| 2 | 1001–1002 | ||
| 14 | 26–39 | ||
| St. Louis Southwestern Railway ("Cotton Belt") | 5 | 1023–1027 | |
| 8 | 1417–1424 | ||
| U.S. Steel, Geneva Steel Division | 6 | 21–26 | |
| 2 | 133–134 | ||
| Total | 56 | ||
| Railroad | Quantity | Road numbers | Notes | |
|---|---|---|---|---|
| 1 | 26 | |||
| 2 | 101–102 | |||
| 41 | 2200 (second), 2260–2299 | |||
| 2 | 676–677 | |||
| Baldwin Locomotive Works (test) | 1 | 100DF | Dual Fuel experiment, rebuilt to standard specification and sold to Patapsco and Back Rivers Railroad #335 | |
| 49 | 376–399, 438–462 | renumbered 9225–9273 | ||
| 1 | 282 | to Geneva Steel #38 | ||
| 2 | 201–202 | to Escanaba and Lake Superior | ||
| 11 | 7065–7075 | built by Baldwin Locomotive Works; 1 preserved in Toronto (7069) | ||
| 2 | 36–37 | |||
| Central Railroad of Pennsylvania (Central Railroad of New Jersey) | 3 | 1073–1075 | ||
| 5 | 1018–1022 | |||
| 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 | ||
| 15 | 602–616 | |||
| 1 | 921 | |||
| 2 | 750–751 | 750 to Patapsco and Back Rivers #348; 751 to Conrail #8354 | ||
| 2 | 53–54 | |||
| 8 | 140–148 | |||
| 1 | 450 | |||
| Minneapolis, St. Paul and Sault Ste. Marie Railroad ("Soo Line") | 2 | 311–312 | ||
| 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 | |
| 1 | 101 | |||
| 5 | 928–932 | |||
| 8 | 337–344 | |||
| 136 | 5550–5590, 5968–5979, 9050–9079, 9122–9275, 9434 | PRR Class BS-10a | ||
| 30 | 700–729 | |||
| St. Louis-San Francisco Railway ("Frisco") | 4 | 238–241 | ||
| 27 | 1435–1461 | to Seaboard Coast Line Railroad #51–73 | ||
| 5 | 2285–2289 | |||
| 10 | 1393–1402 | |||
| 2 | 602–603 | |||
| 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 | ||
| 1 | 304 | rebuilt as calf (without a cab) in 1961 after collision damage | ||
| 1 | 630 | |||
| Total | 446 |