British Rail Class 166

The British Rail Class 166 "Network Express Turbo" diesel multiple units (also known as just "Thames Turbos" ) were built by ABB at York Works from 1992-93. These units are the express version of the Class 165 "Network Turbo" units. They have a top speed of 90mph (suitable for mainline use), are carpeted throughout and have air-conditioning (the 165s lack the latter two features and it should be noted the 166 is similar to the Class 158 in terms of what it offers).

British Rail Class 166 "Network Express Turbo"
300px Great Western Railway 166208 at Didcot Parkway in 2015
In service	11 May 1993 - Present
Manufacturer	ABB
Family name	Networker
Constructed	1992-1993
Number built	21 trainsets
Formation	3 cars per trainset
Fleet numbers	166201 - 166221
Operator	First Great Western
Specifications
Maximum speed	90mph
Engine(s)	Perkins 2006TWH
Safety system(s)	AWS, TPWS

British Rail Class 166 Media

• 166220 arrives at Oxford with a service to London Paddington.

• Clifton Down - GWR 166212 Bristol service.JPG

  Great Western Railway unit 166212 at Clifton Down on the Severn Beach Line in Bristol, July 2017

• 166217 at Reading.JPG

  166207 in Thames Trains livery with First Great Western Link branding.

• GWR Class 166 0.png

  Great Western Railway Class 166 unit

• 166205 First Class Interior.jpg

  The refurbished interior of First Class cabin aboard GWR Class 166 166205

• Hugh llewelyn 166 201 (7808314668).jpg

  First Great Western Class 166 No. 166201 at Moreton in Marsh

• 166207 DMCO First Class Interior.JPG

  The interior of First Class cabin of First Great Western Class 166

• 166207 DMCO Interior.JPG

  The interior of Standard Class accommodation of First Great Western Class 166

• 166207 First Class Cabin.jpg

  The refreshed interior of First Class cabin aboard a First Great Western Class 166

• 166207 MSO Interior.jpg

  The refreshed interior of Standard Class accommodation aboard a First Great Western Class 166