Baldwin DS-4-4-750

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

Specifications
AAR wheel arr.	B-B
UIC class	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

Performance figures
Power output	750 hp (559 kW)

Career
Locale	North America

The Baldwin DS-4-4-750 was a four-axle 750 horsepower (560 kW) diesel-electric switcher 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.

Original owners

Railroad	Quantity	Road Numbers	Notes
Baldwin Locomotive Works (plant)	1	301	to Weyerhaeuser Timber Company 301 in 1956; became Texas South-Eastern 301, now R.J. Corman (Texas Line) 301
Baldwin Locomotive Works (demonstrators)	2	750–751	to Weyerhaeuser Timber Company 101–102
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 Company	1	14
Youngstown Sheet and Tube	6	608–610, 700–702
Total	53

Page 40 of the Dolzall brothers book "Diesels from Eddystone" describes the DR-4-4-750 as a "Horsepower boost for a lagging seller." Baldwin dropped the DR-4-4-660 model and introduced the new 750 HP DR-4-4-750. The Atchison, Topeka & Santa Fe (AT&SF) purchased nine in August 1948 and 21 units were sold in 1949 to six different customers.

References

Kirkland, John F. (November 1994). The Diesel Builders volume 3: Baldwin Locomotive Works. Pasadena, California: Interurban Press. ISBN 0-916374-93-9.

Dolzall, Gary W. and Stephen F. (1984). Diesels From Eddystone: Baldwin Diesel Locomotives. Milwaukee,Wisconsin: Kalmbach Books. ISBN 0-89024-052-3.

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)

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 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

This article is issued from Wikipedia - version of the 7/17/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.