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British Rail Turbostar
later classes 168 and 170 to 172
Great Britain | 1998 | 217 produced
First ScotRail 170429 in October 2007 at Edinburgh Waverley
First ScotRail 170429 in October 2007 at Edinburgh Waverley
Hugh Llewelyn

Under the name “Turbostar”, Bombardier (originally Adtranz) combined four classes of diesel multiple units that were based on the classes 165/166 “Networker Turbo”. Production took place at the Adtranz/Bombardier factory in Derby. They were the first new vehicles purchased by British railway companies after privatization, with Chiltern Railways as the first customer.

They are designed to be coupled with the “Sprinters” of classes 150 to 159. However, with a top speed of 100 mph (161 km/h), they are faster over longer distances. Compared to their predecessors, they are also largely constructed of aluminum, but have more powerful engines from MTU.

The different variants each consist of two to four cars. The first delivered Class 168 is also called “Clubman”. Classes 170 and 171 only differ in the couplers. The class 172 has bigger differences, as it has more powerful engines and a mechanical six-speed gearbox instead of the two-stage hydraulic Voith gearbox. In the subclasses 172/2 and 172/3 there are additional gangways on the fronts.

Variant168 three-car170 two-car171 four-car172 two-car
General
Built1998-20041998-20052003-20042010-2011
ManufacturerAdtranz, BombardierBombardier
Axle config2-B+2-B+B-2 2-B+B-2 2-B+2-B+B-2+B-2 2-B+B-2 
Gauge4 ft 8 1/2 in (Standard gauge)
Seats204107241124
Dimensions and Weights
Length232 ft 5 3/4 in154 ft 11 1/16 in309 ft 11 11/16 in154 ft 11 13/16 in
Service weight298,726 lbs199,320 lbs388,476 lbs183,204 lbs
Power
Power sourcediesel-hydraulicdiesel-mechanic
Top speed100 mph
EngineMTU 6R 183 TD13HMTU 6H 1800 R83
Engine type3x 6-cyl. diesel2x 6-cyl. diese14x 6-cyl. diesel2x 6-cyl. diese1
Engine output1,267 hp (945 kW)845 hp (630 kW)1,690 hp (1,260 kW)966 hp (720 kW)
Power Plant
Boiler
Calculated Values
DMU
regional
last changed: 12/2023
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