#2337
Franz Krull Sk class
🇪🇪 Estonia ·built by AS Franz Krull· from 1931· locomotive class manufactured in Estonia
1 photo from Wikimedia Commons · credits & licences
- 1. Mõisaküla depoo: Unknown author Unknown author· Public domain
what is it?
The Franz Krull Sk-class is a class of steam locomotive built by the Franz Krull metal works of Tallinn, Estonia between 1931-1940. The Sk were narrow-gauged and used oil shale as fuel, since it is the primary energy source in Estonia. A total of 16 units were produced, of which none has survived.
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 95 years ago, in 1931.
- Served for 49 years (1931–1980).
steam locomotive: Burns coal, wood or oil to boil water; the steam drives pistons that turn the wheels.
spec sheet
- built
- 1931–1940
- in service from
- 1931
- retired
- 1980
- status
- preserved
- number built
- 16
- kind
- Steam
- traction
- steam
- origin
- 🇪🇪 Estonia
- builders
- AS Franz Krull
- designer
- A. Borsig works, Berlin, Germany
- operators
- Estonian Railways
- top speed
- —
- power
- —
- gauge
- 750 mm narrow gauge
- wheel arrangement
- 2-8-0
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q5492866, Wikipedia: Franz Krull Sk class (CC BY-SA 4.0).Updated 2026-10-25.