#1507
2-10-10-2
🇺🇸 United States ·built by Baldwin Locomotive Works· from 1911· Mallet locomotive wheel arrangement
what is it?
Under the Whyte notation for the classification of steam locomotive wheel arrangements, a 2-10-10-2 is a locomotive with two leading wheels, two sets of ten driving wheels, and a pair of trailing wheels. Other equivalent classifications are: UIC classification: 1EE1 (also known as German classification and Swiss classification) Italian and French classification: 150+051 Turkish classification: 56+56 Swiss classification: 5/6+5/6 The equivalent UIC classification is refined to (1′E)E1′ for Mallet locomotives. All 2-10-10-2 locomotives have been articulated locomotives of the Mallet type.
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 115 years ago, in 1911.
- Weighs about as much as 47 African elephants (~6 t each).
- 37.2 m long: about 8 cars parked nose to tail.
steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.
spec sheet
- built
- 1911–1912
- retired
- 1953
- status
- retired
- number built
- —
- kind
- Steam
- traction
- steam
- origin
- 🇺🇸 United States
- builders
- Baldwin Locomotive Works
- operators
- Atchison, Topeka and Santa Fe Railway
- top speed
- —
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 2-10-10-2
- length
- 37.2 m
- weight
- 279 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q2813800, Wikipedia: 2-10-10-2 (CC BY-SA 4.0).Updated 2026-10-25.