#3204
ALCO S-6
🇺🇸 United States ·built by American Locomotive Company· from 1955· 20th century diesel-electric locomotive
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2 photos from Wikimedia Commons · credits & licences
- 1. Hugh llewelyn 1231 (5963970156): Hugh Llewelyn· CC BY-SA 2.0
- 2. SP 1271 ALCO S6 at Newhall 5-66x4 (29696518236): Drew Jacksich from San Jose, California Republic· CC BY 2.0
what is it?
The Alco S-6 (specification DL 430) was a diesel–electric switcher locomotive constructed by ALCO of Schenectady, New York; a total of 126 locomotives were built between May 1955 and December 1960. The S-6 was an improved version of the earlier S-5.
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 71 years ago, in 1955.
- 671 kW is about 8 family cars (~85 kW each) flat out.
- Weighs about as much as 17 African elephants (~6 t each).
- 13.7 m long: about 3 cars parked nose to tail.
diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).
spec sheet
- built
- 1955–1960
- number built
- 126
- kind
- Diesel
- traction
- diesel
- origin
- 🇺🇸 United States
- builders
- American Locomotive Company
- top speed
- 97 km/h
- power
- 671 kW
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- Bo′Bo′
- length
- 13.7 m
- weight
- 104 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q4652299, Wikipedia: ALCO S-6 (CC BY-SA 4.0).Updated 2026-10-25.