The British Rail Class 166 Networker Turbo is a fleet of diesel-hydraulic multiple unit passenger trains, built by ABB Transportation at their Holgate Road Works in York between 1992 and 1993. They were specified by and built for British Rail, the state-owned railway operator in …

An overview of the Class 166 DMU as it enters 30 years of service across a number of routes.

The British Rail Class 166, officially named Networker Turbo Express, or Thames Turbo is a UK commuter Diesel Multiple Unit (DMU) operated solely by Great Western Railway on their routes through the Thames Valley. As of July 2017, the units are now also being introduced into service in the Bristol area.

They have a top speed of 90 mph (suitable for mainline use), are carpeted throughout and have air-conditioning. Externally, the class 166 can be distinguished from a Class 165 by having opening hoppers on every other window. Until the end of 2013, another distinguishing feature was the presence of first class at each end.

The British Rail Class 166 "Network Express Turbo" diesel multiple units (also known as just "Thames Turbos" [1]) were built by ABB at York Works from 1992-93. These units are the express version of the Class 165 "Network Turbo" units.

以Class 166为代表的小型DMU 欢迎来到“迷你”系列。 大家总是很奇怪于英铁列车（尤其是动车组）的编组数量——很多你所能想到的数字，比如1、2、3、4、5、6其实都有存在而且有运营着一定数量。

The Class 166 is a faster, air-conditioned variant of the Class 165, built for main line workings. Twenty-one 3-car units were built for the Thames and North Downs subdivisions of Network SouthEast in 1992 and 1993.

Operate as 3-car units (DMCL (A)-MS-DMCL (B)) with UAT and PRM Compliant toilet in both DMCL vehicles.

The Class 166 units are three car units, seating 243 Standard Class, and 32 1st Class. They are capable of 90mph. The current stock of 21 units are all allocated to Thames Trains Ltd and are in the Networker colours.

British Rail Class 166 Networker Turbo is a fleet of diesel multiple units (DMUs) built by ABB Transportation at their Holgate Road Works in York between 1992 and 1993. They were specified by British Rail, the state-owned railway operator in Great Britain at the time.