page_title: British Rail Class 166
section_title: Fleet details
hierarchical_section_title: British Rail Class 166 / Fleet details
caption_attribution_description: English: GWR Class 166
context_page_description: The British Rail Class 166 Networker Turbo is a fleet of diesel multiple-unit passenger trains, originally specified by and built for British Rail, the then Great Britain state-owned railway operator. They were built by ABB at York Works between 1992 and 1993. The trains were designed as a faster, air-conditioned variant of the Class 165 Turbo, intended for longer-distance services, and, like the 165s, belong to the Networker family of trains. They were originally known as Networker Turbos to distinguish them from the electrically propelled members of that family. Today, the 166s alongside the 165s are normally referred to as Thames Turbos or just simply Turbos.
  The Class 166s are still in service today and are used for express services out of London Paddington and local services out of Reading and Didcot Parkway alongside the Class 165s. In July 2017, they began operation on the Severn Beach line in Bristol to allow other services to be strengthened. Since September, they have rapidly been introduced on other services such as the Weston-super-Mare to Filton Abbey Wood / Bristol Parkway service and the Cardiff Central to Taunton services.
caption: Great Western Class 166
exif: {}