#2235
Southern Pacific class AC-2
🇺🇸 United States ·built by Unknown builder· from 1928· class of 12 American 2-8-8-2 cab forward locomotives rebuilt from SP MC-4 class
what is it?
Southern Pacific Railroad's AC-2 class of steam locomotives was the second in the AC series of cab forward locomotives built for Southern Pacific (SP). This class consisted of locomotives that were rebuilt from Baldwin-built SP MC-4 class locomotives by 1930. The rebuild from MC-4 class gained the locomotives about 5,000 pounds-force (22 kN) in tractive effort, but also increased the locomotives' weight by about 50,000 pounds (23,000 kg).
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 98 years ago, in 1928.
- Weighs about as much as 36 African elephants (~6 t each).
- Served for 21 years (1928–1949).
steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.
spec sheet
- built
- 1928
- in service from
- 1928
- retired
- 1949
- status
- retired
- number built
- 12
- kind
- Steam
- traction
- steam
- origin
- 🇺🇸 United States
- builders
- Unknown builder
- operators
- Southern Pacific Transportation Company
- top speed
- —
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 2-8-8-2
- weight
- 218 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q7570295, Wikipedia: Southern Pacific class AC-2 (CC BY-SA 4.0).Updated 2026-10-25.