what is it?
The Prussian S 9 was a class of express steam locomotive with the Prussian state railways, first built in 1908. It had a 4-4-2 (Atlantic) wheel arrangement and a four-cylinder compound engine. It was developed by the firm of Hanomag in Hanover who delivered a total of 99 engines of this class.
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
- Weighs about as much as 11 African elephants (~6 t each).
- 13.1 m long: about 3 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
- —
- retired
- 1926
- status
- retired
- number built
- 99
- kind
- steam locomotive
- traction
- steam
- origin
- 🇧🇪 Belgium
- builders
- Hanomag
- operators
- SNCB/NMBS, Deutsche Reichsbahn, Chemins de fer de l'Est, Prussian state railways, Belgian State Railways
- top speed
- 110 km/h
- power
- —
- gauge
- 1,435 mm standard gauge
- wheel arrangement
- 4-4-2
- length
- 13.1 m
- weight
- 68 t
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q879262, Wikipedia: Prussian S 9 (CC BY-SA 4.0).Updated 2026-10-25.