 the class 170 "turbostar" is a british diesel multiple-unit (dmu) train built by bombardier transportation (and previously adtranz) at its derby litchurch lane works. introduced after privatisation, these trains have operated regional as well as long-distance services, and to a lesser extent suburban services. 122 units have been built. ==design== thumb|left|upright|driving cab of a 170 the class is a development of the design used in the british rail class 165, 166 and 168 dmus known as the networker turbos which were built by brel and later abb transportation ltd before that company became part of bombardier. notable features shared are the aluminium alloy frame and voith transmission as well as the general body shape (the cab ends are similar to those of the class 168, but not class 165/166), interior design and door fittings. the f
Adtranz_multiple_units Bombardier_Transportation_multiple_units British_Rail_diesel_multiple_units