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The RSD-15 was powered by an ALCO 251 16-cylinder four-cycle V-type prime mover rated at 2,400 horsepower (1.79 MW); it superseded the almost identical ALCO 244-engined RSD-7, and was catalogued alongside the similar but smaller 1,800 hp (1.34 MW) RSD-12, powered by a 12-cylinder 251-model V-type diesel engine.
Model Build date Total produced Wheel arrangement Prime mover Power output Image 60-ton: 1924–1928: 26: B-B: Ingersoll-Rand 10 in × 12 in (254 mm × 305 mm): 300 hp (220 kW) 100-ton
Hamersley Iron in Western Australia bought the prototype in May 1968, formerly lettered as ALCO 415. The locomotive was equipped with a medium height cab and AAR Type B trucks. [3] [4] Chehalis Western Railroad bought a single high cab unit with Hi-Ad trucks. [3] Columbia and Cowlitz Railway bought a single high cab unit with Hi-Ad trucks.
The first unit built as ALCO Specification DL-103b was 4 ft 5 in (1.35 m) longer than the other cab units, and became Chicago, Rock Island and Pacific Railroad #624. The DL-103b had the two radiator sections positioned together at the end of the carbody, while all other units had a split radiator arrangement with one placed at the back of the ...
The RSD-7 was superseded by the ALCO 251-engined ALCO RSD-15, which looks very similar. [1] The RSD-7 was the last ALCO diesel built with a 244 engine. Both rode on a pair of three-axle trucks with all three axles on each truck powered; this is a C-C wheel arrangement. These trucks have an unequal axle spacing due to traction motor positioning ...
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The ALCo Century 636 was the most powerful single-engine diesel-electric locomotive constructed by the American Locomotive Company (ALCo). It used their 251 prime mover. The locomotive had a C-C wheel arrangement and 3,600 horsepower (2,700 kW). The locomotive rode on a pair of trucks of all-new design, known as the Hi-Ad, standing for 'high ...