#5099· Class 66

British Rail Class 66

🇨🇦 Canada ·built by EMD JT42CWR· from 1998· class of Co′Co′ diesel-electric locomotives

10 photos from Wikimedia Commons · credits & licences

1. 66655 working 4M74 Chesterton Redland Siding to Mountsorrel departs Peterborough: Foulger Rail Photos· CC BY-SA 4.0
2. 66534 on container train: Murgatroyd49· CC BY-SA 4.0
3. British Rail Class 66/5: Hugh Llewelyn· CC BY-SA 2.0
4. British Rail Class 66/6: Phil Sangwell from United Kingdom· CC BY 2.0
5. British Rail Class 66/0: Steve Jones· CC BY-SA 4.0
6. British Rail Class 66/3: The Basingstoker· CC BY-SA 2.0
7. British Rail Class 66/8: Phil Sangwell from United Kingdom· CC BY 2.0
8. British Rail Class 66/7: Rob Hodgkins· CC BY-SA 2.0
9. Carlisle Citadel. DB Class 66 diesel engine - 50090004003: wwwuppertal· CC BY 2.0
10. Carlisle Citadel. DB Class 66 diesel engine - 50090007158: wwwuppertal· CC BY 2.0

what is it?

The British Rail Class 66 is a type of six-axle diesel-electric freight locomotive developed in part from the Class 59, for use on UK railways. Since its introduction the class has been successful and has been sold to British and other European railway companies. In Continental Europe it is marketed as the EMD Class 66 (JT42CWR).

who runs it

GB Railfreight Direct Rail Services Freightliner DB Cargo UK Colas Rail Advenza Freight English, Welsh and Scottish Railway fastline

base stats

speed 121 km/htop speed
built 446made 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 28 years ago, in 1998.

diesel locomotive: A diesel engine on board drives the wheels, usually through a generator (diesel-electric).

spec sheet

built: 1998
in service from: 1998
number built: 446
kind: Diesel-electric
traction: diesel
origin: 🇨🇦 Canada
builders: EMD JT42CWR, Electro-Motive Diesel
operators: GB Railfreight, Direct Rail Services, Freightliner, DB Cargo UK, Colas Rail, Advenza Freight, English, Welsh and Scottish Railway, fastline
top speed: 121 km/h
power: —
Dutch name: Class 66

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

family

Sources: Wikidata Q867817, Wikipedia: British Rail Class 66 (CC BY-SA 4.0).Updated 2026-10-25.