PRR No. 7862, a Baldwin DS44-660 at Little Creek, VA on September 20, 1969.
(Roger Puta, courtesy Marty Bernard, railfan 44, Public domain, via Wikimedia Commons)
BALDWIN DS-4-4-660 DIESEL-ELECTRIC LOCOMOTIVE
The Baldwin DS-4-4-660 was a four-axle 660 horsepower (490 kW) diesel-electric switcher locomotive built by the Baldwin Locomotive Works at it Eddystone, Pennsylvania factory between 1946 and 1949. It replaced the 660 horsepower (490 kW) VO-660 in their catalog, and was in turn replaced by the 750 horsepower (560 kW) DS-4-4-750. It was the low power companion to Baldwin's DS-4-4-1000 models.
Original owners
| Railroad / Owner | Quantity | Road numbers | Notes |
|---|---|---|---|
| American Cyanamid Company | 1 | 13 | |
| American Rolling Mill Company | 1 | 1001 | |
| Chesapeake Western Railway | 3 | 661–663 | 661 scrapped, 662 and 663 survive in Roanoke, VA. |
| Chicago, St. Paul, Minneapolis and Omaha Railway (“Omaha Road”) | 1 | 71 | |
| Chicago and North Western Railway | 3 | 1259–1261 | |
| Crows Nest Pass Coal | 1 | 1 | |
| Escanaba and Lake Superior Railroad | 1 | 101 | |
| Erie Railroad | 5 | 381–385 | |
| Georgia Northern Railway | 1 | 102 | |
| Long Island Rail Road | 4 | 409–412 | |
| New Orleans Public Belt Railroad | 6 | 44–49 | |
| Norfolk Southern Railway | 3 | 661–663 | |
| Patapsco and Back Rivers Railroad | 4 | 306–309 | |
| Pennsylvania Railroad | 99 | 5957–5966, 9000–9049, 9110–9121, 9210–9236 | PRR Class BS-6a |
| Sloss-Sheffield Steel | 1 | 30 | |
| Tennessee Valley Authority | 1 | 100 | |
| Wabash Railroad | 2 | 201–202 | |
| Wyandotte Southern Railroad | 1 | D100 | |
| Wyandotte Terminal Railroad | 1 | 104 | |
| Total | 139 |
A very rusty Baldwin DS-4-4-660 locomotive sits next to the NS main in Roanoke, VA. This is one of "The Lost Engines of Roanoke" and is Chesapeake Western No. 663.
(Hunter Williams, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons)
Overview
Type and origin
Power type: Diesel-electric
Builder: Baldwin Locomotive Works
Build date: June 1946 to May 1949
Total produced: 139
Specifications
Configuration: AAR B-B
Gauge: 4 ft 8+1⁄2 in (1,435 mm)
Length: 46 ft 6+1⁄4 in (14.18 m)
Width: 9 ft 11+1⁄4 in (3.03 m)
Height: 14 ft (4.27 m)
Locomotive weight: 196,600 lb (89,200 kg)
Prime mover: 606NA
RPM range: 625 rpm max.
Engine type: Four-stroke diesel
Aspiration: Normally aspirated, solid injection
Displacement: 1,979 cu in (32.43 L) per cylinder; 11,874 cu in (194.58 L) total
Generator: DC type 480
Traction motors: Westinghouse 362-D
Cylinders: Straight-6
Cylinder size: 12+3⁄4 in × 15+1⁄2 in (324 mm × 394 mm))
Locomotive brake: Air
Train brakes: Air
Performance figures
Power output: 660 hp (492 kW)
Tractive effort: 56,500 lb (25,600 kg)
Career
Locale: North America
