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10 photos from Wikimedia Commons · credits & licences
- 1. VR Dm7: Matthew Ross ( Matthewross )· CC BY-SA 3.0
- 2. VR Class Dm7 in Jyvaskyla: Felix O· CC BY-SA 2.0
- 3. Dm7 at Äänekoski: Yaamboo· CC BY-SA 3.0
- 4. Lättähattu VR Dm7 sisältä: Á· CC BY 3.0
- 5. 08 231 Bf Jyväskylä, Dm7 4204: Falk2· CC BY-SA 3.0
- 6. 09.07.16 Keuruu Dm7 4185+4209 (28396506066): Phil Richards from London, UK· CC BY-SA 2.0
- 7. DM7 - Photo series nr 2 of 9 Porvoo: Abc10· CC BY-SA 3.0
- 8. DM7 - Photo series nr 4 of 9 Porvoo: Abc10· CC BY-SA 3.0
- 9. DM7 - Photo series nr 6 of 9 Porvoo: Abc10· CC BY-SA 3.0
- 10. DM7 - Photo series nr 8 of 9 Porvoo: Abc10· CC BY-SA 3.0
what is it?
The Dm6 and Dm7 were diesel multiple units built by Valmet in the 1950s and 1960s for Valtionrautatiet. They are known by their nickname lättähattu (Finnish for "flat hat", the first widespread youth culture movement in Finland).
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 72 years ago, in 1954.
- 16.7 m long: about 4 cars parked nose to tail.
multiple unit: A self-propelled train: motors are spread under the passenger cars, so no separate locomotive.
spec sheet
- built
- 1954
- in service from
- 1954
- number built
- 15
- kind
- multiple unit
- traction
- diesel
- origin
- 🇫🇮 Finland
- builders
- Valmet
- operators
- VR Group, Finnish State Railways
- top speed
- 115 km/h
- power
- 130 kW
- gauge
- 1,524 mm Russian broad gauge
- wheel arrangement
- (1A)(A1)dm
- length
- 16.7 m
- capacity
- 64 passengers
- Dutch name
- VR Dm 7
From the Wikipedia infobox and Wikidata. Blank means the sources don't say.
Sources: Wikidata Q845198, Wikipedia: VR Class Dm7 (CC BY-SA 4.0).Updated 2026-10-25.