#5759
Pennsylvania Railroad 5550
🇺🇸 United States ·built by The T1 Trust· from 2014· American 4-4-4-4 locomotive under construction
what is it?
Pennsylvania Railroad 5550, named Dave Fink, is a mainline duplex drive steam locomotive under construction in the United States. With an estimated completion by 2030, the locomotive will become the 53rd example of the Pennsylvania Railroad's T1 steam locomotive class and the only operational locomotive of its type, as well as the largest steam locomotive built in the United States since 1952 and the only existent duplex locomotive in the world. The estimated cost of PRR 5550 Dave Fink was originally $10 million, but an updated projected cost of $7 million was released with the acquisition of an existing long-haul tender from the Western New York Railway Historical Society in August 2017.
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 12 years ago, in 2014.
- Top speed is 1.6× a car on the Dutch motorway (130 km/h).
- At full speed it would cover Amsterdam–Utrecht (≈ 40 km) in 11 minutes.
- Weighs about as much as 38 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
- 2014–2030
- number built
- 53
- kind
- Steam
- traction
- steam
- origin
- 🇺🇸 United States
- builders
- The T1 Trust
- designer
- Ralph P. Johnson, Raymond Loewy
- operators
- Pennsylvania Railroad T1 Steam Locomotive Trust
- top speed
- 209 km/h
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 4-4-4-4
- length
- 37.2 m
- weight
- 228 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q29960718, Wikipedia: Pennsylvania Railroad 5550 (CC BY-SA 4.0).Updated 2026-10-25.