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#2311

Pennsylvania Railroad class O1

🇺🇸 United States ·built by Pennsylvania Railroad· from 1930· class of 8 American 2′B2′ electric locomotives

what is it?

The Pennsylvania Railroad's class O1 comprised eight experimental boxcab electric locomotives built in 1930 and 1931. They were built in preparation for the New York to Washington Electrification project. They had the wheel arrangement classified as 4-4-4 in the Whyte notation (UIC: 2'B2'; AAR: 2-B-2).

who runs it

base stats

  • speed 145 km/htop speed
  • power 1.9 MWpower output
  • weight 136 tin working order
  • built 8made 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 96 years ago, in 1930.
  • Top speed is 1.1× a car on the Dutch motorway (130 km/h).
  • 1.9 MW is about 22 family cars (~85 kW each) flat out.
  • Weighs about as much as 23 African elephants (~6 t each).
  • 15.9 m long: about 4 cars parked nose to tail.
  • Served for 31 years (1930–1961).

electric locomotive: Draws power from overhead wires or a third rail and pulls separate carriages.

spec sheet

built
1930–1931
in service from
1930
retired
1961
status
retired
number built
8
kind
electric
traction
electric
origin
🇺🇸 United States
builders
Pennsylvania Railroad, Altoona Works
operators
Pennsylvania Railroad
top speed
145 km/h
power
1.9 MW
electric system
11 kV 25 Hz AC Catenary
wheel arrangement
4-4-4
length
15.9 m
weight
136 t

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

Sources: Wikidata Q7120502, Wikipedia: Pennsylvania Railroad class O1 (CC BY-SA 4.0).Updated 2026-10-25.

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