#2317
Southern Pacific class AC-6
🇺🇸 United States ·built by Baldwin Locomotive Works· from 1930· class of 25 American 4-8-8-2 cab forward locomotives
what is it?
Southern Pacific Railroad's AC-6 class of steam locomotives was the third of the railroad's classes built with a 4-8-8-2 wheel arrangement. Like the earlier AC-4 and AC-5 classes, the AC-6 class were cab forward locomotives. The AC-6 was slightly larger than the previous classes with a higher boiler pressure and tractive effort rating.
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 96 years ago, in 1930.
- Weighs about as much as 48 African elephants (~6 t each).
- Served for 25 years (1930–1955).
steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.
spec sheet
- built
- 1930
- in service from
- 1930
- retired
- 1955
- status
- retired
- number built
- 25
- kind
- Steam
- traction
- steam
- origin
- 🇺🇸 United States
- builders
- Baldwin Locomotive Works
- operators
- Southern Pacific Transportation Company
- top speed
- —
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 4-8-8-2
- weight
- 290 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q7570299, Wikipedia: Southern Pacific class AC-6 (CC BY-SA 4.0).Updated 2026-10-25.