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#2718

Pennsylvania Railroad class J1

๐Ÿ‡บ๐Ÿ‡ธ United States ยทbuilt by Altoona Worksยท from 1942ยท class of 125 American 2-10-4 locomotives

what is it?

The PRR J1 was a class of 2-10-4 "Texas" type steam locomotives built between 1942 and 1944. The J1 locomotives had over 95,000 pounds-force (422.6 kN) of tractive effort, plus an additional 15,000 lbf (66.7 kN) including the booster engine.

who runs it

base stats

  • speed 80 km/htop speed
  • power 4.2 MWpower output
  • weight 268 tin working order
  • built 125made in total

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 84 years ago, in 1942.
  • 4.2 MW is about 50 family cars (~85 kW each) flat out.
  • Weighs about as much as 45 African elephants (~6 t each).
  • 35.7 m long: about 8 cars parked nose to tail.
  • Served for 17 years (1942โ€“1959).

steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.

spec sheet

built
1942โ€“1944
in service from
1942
retired
1959
status
retired
number built
125
kind
Steam
traction
steam
origin
๐Ÿ‡บ๐Ÿ‡ธ United States
builders
Altoona Works
operators
Pennsylvania Railroad
top speed
80 km/h
power
4.2 MW
gauge
1,435 mm standard gauge
wheel arrangement
2-10-4
length
35.7 m
weight
268 t
nicknames
War Babies

From the Wikipedia infobox and Wikidata. Blank means the sources don't say.

Sources: Wikidata Q7120492, Wikipedia: Pennsylvania Railroad class J1 (CC BY-SA 4.0).Updated 2026-10-25.

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