Baldwin 4-8+8-4-750/8-DE

Baldwin 4-8+8-4 750/8 DE

Type and origin
Power type	Diesel-electric
Builder	Baldwin Locomotive Works
Serial number	BLW 64639, also 4-8+8-4 750/8 DE 1
Model	4-8+8-4 750/8 DE
Build date	1943
Total produced	1

Specifications
AAR wheel arr.	2-D+D-2
UIC class	(2′Do)+(Do2′)
Gauge	4 ft 8 ¹⁄₂ in (1,435 mm)
Length	91 ft 6 in (27.89 m)
Loco weight	685,000 pounds (311,000 kg)
Fuel capacity	2,850 US gal (10,800 l; 2,370 imp gal)]
Prime mover	Eight 408 (but only four installed)
Engine type	Four-stroke diesel
Aspiration	Supercharger
Generator	DC generator
Traction motors	DC traction motors
Cylinders	V8 (×8 planned)
Transmission	Electric
Loco brake	Straight air
Train brakes	Air

Performance figures
Maximum speed	120 mph (190 km/h)
Power output	6,000 hp (4.47 MW) (with all 8 engines installed)
Tractive effort	45,000 lbf (200.17 kN) at 39 mph (63 km/h)

Career
Locale	North America

The Baldwin 4-8+8-4 750/8 DE1 was the Baldwin Locomotive Works' first attempt at road diesel locomotive. The trucks were configured in a 2-D+D-2 wheel arrangement. Only a single test unit was built.

In 1943 Baldwin built an experimental "Centipede" as a demonstrator unit, which was assigned road #6000. The uniquely styled unit, with its upright, aggressive prow, was to be powered with eight model 408 V8 diesel engines (which would have produced 6,000 horsepower (4,500 kW)), though only four were actually installed. The locomotive's running gear design reflected Baldwin steam and electric locomotive practice. The carbody rode on two massive articulated cast steel half-frames cast by General Steel Castings, linked at the middle with a hinged joint. Unpowered four-wheel trucks at each end guided the locomotive through curves for stability at speed.

The locomotive utilized unique "power packages", each consisting of an engine, generator, radiator, electrical cabinet, and other auxiliaries. These power packages could be changed out in as little as 20 minutes. While the locomotive was designed to carry 8 of these power packages, only 4 were ever installed. Each engine powered a single axle of the locomotive.

The lone unit was dismantled soon after production, and its running gear was used for the one of a kind prototype #4500 Seaboard Air Line 3,000 horsepower (2,200 kW) "Centipede".

References

Kirkland, John F. (1994). The Diesel Builders (Volume 3, Baldwin Locomotive Works). Interurban Press. ISBN 0-916374-93-9.
Pinkepank, Jerry A. (1973). The Second Diesel Spotter's Guide. Kalmbach Publishing Co. ISBN 0-89024-026-4.
Dolzall, Gary W. & Dolzall, Stephen F. (1984). Diesels From Eddystone: The Story of Baldwin Diesel Locomotives. Kalmbach Publishing Co. 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)

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