Description and Technical Details
The Clubman/Turbostar/Electrostar platform is a modular design, which share the same basic design, bodyshell and core structure, and is optimised for speedy manufacture and easy maintenance. It consists of an underframe, which is created by seam-welding a number of aluminium alloy extrusions, upon which bodyside panels are mounted followed by a single piece roof, again made from extruded sections. The car ends (cabs) are made from glass-reinforced plastic and steel, and are huck-bolted onto the main car bodies. Underframe components are collected in ‘rafts’, which are bolted into slots on the underframe extrusion. The mostly aluminium alloy body gives light weight to help acceleration and energy efficiency.
Much of the design is derived from the Networker Turbo Class 165 and Class 166 trains built by BREL. Notable features shared are the aluminium alloy frame and two speed Voith T211r hydrodynamic transmission system. The diesel engine has changed to an MTU 6R 183TD. A cardan shaft links the output of the gearbox to ZF final drives (instead of Gmeinder in the Networkers) on the inner bogie of each vehicle. The engine and transmission are situated under the body; one bogie per car is powered, the other bogie unpowered.
Turbostars have been acquired for use by several train operating companies, each with different specifications. One of the more noticeable differences with later units compared to earlier ones are the larger headlights now specified for safety reasons.
Units are numbered 168 xxx, 170 xxx, 171 xxx, or 172 xxx, where xxx is the serial number of the unit. Individual carriages are numbered 50xxx and 79xxx for driving motor cars, and 56xxx and 54xxx for centre cars.
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