#1541
Pennsylvania Railroad class K29s
🇺🇸 United States ·built by American Locomotive Company· from 1911· 20th century prototype locomotive
what is it?
The Pennsylvania Railroad's class K29s comprised a single experimental 4-6-2 "Pacific" type steam locomotive. Constructed by Alco-Schenectady, it was given road number 3395. Although only one demonstrator was constructed, the K29s would become the basis for the highly successful K4s Pacifics and L1s Mikados.
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 24 African elephants (~6 t each).
steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.
spec sheet
- built
- 1911
- retired
- 1929
- status
- retired
- number built
- 1
- kind
- Steam
- traction
- steam
- origin
- 🇺🇸 United States
- builders
- American Locomotive Company
- operators
- Pennsylvania Railroad
- top speed
- —
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 4-6-2
- weight
- 144 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q39046521, Wikipedia: Pennsylvania Railroad class K29s (CC BY-SA 4.0).Updated 2026-10-25.