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Baldwin 4-8+8-4-750/8-DE builder's photo.
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Baldwin 4-8+8-4-750/8-DE builder's photo.

Baldwin Locomotive Works, H.L. Broadbelt Collection

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Baldwin 4-8+8-4-750/8-DE Diesel-Electric Road Locomotive
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 No. 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 No. 4500 Seaboard Air Line 3,000 horsepower (2,200 kW) "Centipede".

Baldwin 4-8+8-4 750/8 DE Overview
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

Road number: 6000
AAR wheel arrangement: 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)
Locomotive weight: 685,000 pounds (311,000 kg)
Fuel capacity: 2,850 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
Locomotive 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)
Locale: North America

See also:

Baldwin Diesels

Diesel Locomotives