Baldwin DS-4-4-750

Specifications
Specifications
Configuration:;
• AAR	B-B
• UIC	B′B′
Gauge	4 ft 8+1⁄2 in (1,435 mm)
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 generator
Traction motors	DC traction motors
Cylinders	Straight-6
Cylinder size	12+3⁄4 in × 15+1⁄2 in (324 mm × 394 mm)
Transmission	Electric
Loco brake	Air
Train brakes	Air

Baldwin DS-4-4-750
Baldwin DS-4-4-750
	#631, a DS-4-4-750 of the Atchison, Topeka and Santa Fe Railway switches a passenger train in Amarillo, Texas
Power type
Type and origin
Power type	Diesel-electric
Builder	Baldwin Locomotive Works
Model	DS-4-4-750
Build date	July 1949 to February 1951
Total produced	53
Configuration:;
Specifications
Configuration:;
• AAR	B-B
• UIC	B′B′
Gauge	4 ft 8+1⁄2 in (1,435 mm)
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 generator
Traction motors	DC traction motors
Cylinders	Straight-6
Cylinder size	12+3⁄4 in × 15+1⁄2 in (324 mm × 394 mm)
Transmission	Electric
Loco brake	Air
Train brakes	Air
Power output
Performance figures
Power output	750 hp (559 kW)
Locale
Career
Locale	North America

ModelDS-4-4-750

The Baldwin DS-4-4-750 was a four-axle 750 horsepower (560 kW) diesel-electric switcher locomotive built by the Baldwin Locomotive Works at it Eddystone, Pennsylvania factory between 1949 and 1951. It was a bridge between the 660 horsepower (490 kW) DS-4-4-660 and the S-8. It was the low power companion in Baldwin's catalog to their DS-4-4-1000 and the S-12.

Railroad	Quantity	Road numbers	Notes
Baldwin Locomotive Works (plant)	1	301	to Weyerhaeuser Timber Company 301 in 1956; became Texas South-Eastern 301, R.J. Corman (Texas Line) 301, and recently sold to SMS Rail Lines.
Baldwin Locomotive Works (demonstrators)	2	750–751	to Weyerhaeuser Timber Company 101–102. 101 preserved at Train Mountain Railroad Museum.^[1]
American Cyanamid Company	1	14
American Steel and Wire Company	1	20
Atchison, Topeka and Santa Fe Railway	9	525–533
California Western Railroad	2	51–52
Erie Railroad	4	386–389
Pennsylvania Railroad	24	5595–5618
Texas Mexican Railway	2	509–510
Warner Sand and Gravel	1	14	This locomotive is now on the Allentown and Auburn Railroad in Topton, Pennsylvania undergoing restoration.
Youngstown Sheet and Tube	6	608–610, 700–702
Total	53

v t e Diesel locomotives built by the Baldwin Locomotive Works
Early units	Experimental units Baldwin pre-production switchers 4-8+8-4-750/8-DE
Switchers	VO-660 RS-4-TC DS-4-4-660 DS-4-4-750 S-8 VO-1000 DS-4-4-1000 S-12
Road switchers	DRS-4-4-1000 RS-12 DRS-4-4-1500 AS-16 DRS-6-4-1500 AS-416 DRS-6-6-1500 AS-616
Transfer units	DT-6-6-2000 RT-624
Cab units	DR-12-8-1500/2 DR-6 series DR-4-4-15 RF-16 RP-210
Export units	Soviet Railways ДБ20 DRS-6-4-660 DRS-6-4-750 DRS-6-4-1000 RF-615E
(See also: List of Baldwin diesel locomotives and List of preserved Baldwin locomotives)

v t e Diesel–electric switcher locomotives
Alco	ALCO Boxcab ALCO 600 HH600 HH660 HH900 HH1000 S-1 S-2 S-3 S-4 S-5 S-6 T-6 SB-8/SSB-9
Baldwin	VO-660 DS-4-4-660 DS-4-4-750 S-8 RS-4-TC VO-1000 DS-4-4-1000 S-12
Fairbanks-Morse	H-10-44 H-12-44 H-12-44TS H-12-46
GE	60-ton boxcab 100-ton boxcab 600-hp centercab 1000-hp centercab DEY-2 EN-6 25-ton 35-ton 43-ton 44-ton 45-ton 50-ton 60-ton 65-ton 70-ton 80-ton 95-ton 100-ton 110-ton 125-ton 126-ton 128-ton 1800-hp transfer 2000-hp transfer U5B U6B
GM/EMD	SC, SW, NC, NC1, NC2, NW, NW1, NW1A, NW4, T NW2 NW3 NW5 TR1 SW1 SW7 SW8 SW9 SW14 SW600 SW900 SW1000 SW1001 SW1200 SW1500 SW1504 MP15DC MP15AC MP15T RS1325 GMD1
Lima-Hamilton	LS-750 LS-800 LS-1000 LS-1200
National Railway Equipment	1GS7B 2GS14B 3GS21B 3GS21C

References