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Locomotive-Specs
ALCo RS-3m – photo 1© trainspo.com
Diesel locomotive

ALCo RS-3m

Built by ALCo, MLW

Track gauge
1,435 mm
Standard gauge
Years built
1956–1978
Axle arrangement
Bo'Bo'

Overview of the ALCo RS-3m

Discover the robust RS-3m diesel locomotive, a versatile workhorse with a rich operational history in the United States.

This locomotive, identified by its Bo'Bo' classification, has served prominent railroads such as the Housatonic Railroad, Maryland and Delaware Railroad Company, and the Missouri Pacific.

Built between 1956 and 1978 by ALCo and MLW, the RS-3m features a standard 1435 mm gauge, making it a common sight on North American rail lines.

Explore images and details of this reliable diesel locomotive, a testament to enduring railway engineering.

ALCo RS-3m technical specifications

Value
SeriesRS-3
Built byALCo, MLW · 1956–1978
Track gauge1,435 mmStandard gauge4 ft 8½ in
UIC axle arrangementBo'Bo'

Operators of the ALCo RS-3m

Railway companies that have operated the RS-3m, with the class designation used by each of them.

OperatorClassCountry
Housatonic RailroadHRRC RS-3mUnited States
Maryland and Delaware Railroad CompanyMDDE RS-3mUnited States
Missouri PacificMP RS-3mUnited States

ALCo RS-3m photos

Photos © their respective authors, shared on trainspo.com. They may show liveries or variants that differ from the specifications above.

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