#2709
ALCO RSD-1
🇺🇸 United States ·built by American Locomotive Company· from 1942· class of 150 American (later Soviet) 1000hp Co′Co′ diesel-electric locomotives
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3 photos from Wikimedia Commons · credits & licences
- 1. Diesel locomotive DA20-09 (5): George Shuklin· CC BY-SA 2.5
- 2. RSD-1: Wikimedia Commons· Attribution
- 3. RSD-1 final voyage: by Lyna Tucker 633d Air Base Wing Public Affairs· Public domain
what is it?
The ALCO RSD-1 is a diesel-electric locomotive built by the American Locomotive Company (ALCO). This model was a road switcher type rated at 1,000 horsepower (750 kW) and rode on three-axle trucks, having a C-C wheel arrangement. It was often used in much the same manner as its four-axle counterpart, the ALCO RS-1, though the six-motor design allowed better tractive effort at lower speeds, as well as a lower weight-per-axle.
who runs it
base stats
Bars compare against all trains: 600 km/h (maglev), 1,700 seats; power, weight and number built on a log scale up to 20 MW, 1,000 t and 20,000 built.
fun facts
- First built 84 years ago, in 1942.
- 746 kW is about 9 family cars (~85 kW each) flat out.
- Weighs about as much as 19 African elephants (~6 t each).
- 16.8 m long: about 4 cars parked nose to tail.
diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).
spec sheet
- built
- 1942–1946
- number built
- 150
- kind
- Diesel-electric
- traction
- diesel
- origin
- 🇺🇸 United States
- builders
- American Locomotive Company
- operators
- Transportation Corps, Soviet Railways, Ferrocarriles Nacionales de México, Alaska Railroad Corporation
- top speed
- 105 km/h
- power
- 746 kW
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- Co'Co'
- length
- 16.8 m
- weight
- 112 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q1945885, Wikipedia: ALCO RSD-1 (CC BY-SA 4.0).Updated 2026-10-25.