#0215
Pennsylvania Railroad class D2
🇺🇸 United States ·built by Altoona Works· from 1868· class of 65 American 4-4-0 locomotives
what is it?
The Pennsylvania Railroad's steam locomotive class D2 (formerly Class B, pre-1895) comprised twenty 4-4-0 locomotives intended for mountain passenger helper service, constructed at the railroad's own Altoona Works (now owned by Norfolk Southern) during 1869–1880. They were the second standardized class of locomotives on the railroad and shared many parts with other standard classes. This design differed from the Class A (later D1) mainly in its smaller drivers for greater tractive effort in mountainous terrain.
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 158 years ago, in 1868.
- Weighs about as much as 6 African elephants (~6 t each).
- 16.5 m long: about 4 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
- 1868–1882
- number built
- 65
- kind
- Steam
- traction
- steam
- origin
- 🇺🇸 United States
- builders
- Altoona Works
- operators
- Pennsylvania Railroad
- top speed
- —
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 4-4-0
- length
- 16.5 m
- weight
- 36.5 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q7120470, Wikipedia: Pennsylvania Railroad class D2 (CC BY-SA 4.0).Updated 2026-10-25.