The reference for locomotives and railcars
British Rail Pacer
later classes 140 to 144
Great Britain | 1981 | 165 produced
142036 in June 2013 at Eccles
142036 in June 2013 at Eccles

When it became clear that the first generation DMUs had reached the end of their service life and that the development of a full-fledged successor would take a long time, the Pacer was developed as a cheap temporary solution. The body of the Leyland National bus was used and placed on a two-axle underframe intended for a high-speed freight car. These two- or three-car vehicles were designed for a maximum service life of 20 years. Since the Sprinters could not replace them, almost all Pacers were still in use in 2015. From the passengers they got the nickname “Nodding Donkeys”, as they had very uncomfortable suspension characteristics and a high noise level. In 2019 and 2020, almost all were phased out, mainly due to new accessibility requirements. In June 2021, the last Transport for Wales vehicles ran for the last time.

Variantas builtre-engined cummins
Built1981, 1984-1987
ManufacturerBritish Leyland, BREL, Derby, Hunslet-Barclay, Walter Alexander
Axle config1A+A1 
Gauge4 ft 8 1/2 in (Standard gauge)
Dimensions and Weights
Length101 ft 4 1/2 in
Wheelbase29 ft 6 1/4 in
Fixed wheelbase29 ft 6 1/4 in
Empty weight116,704 lbs107,744 lbs
Power sourcediesel-mechanicdiesel-hydraulic
Top speed75 mph
EngineLeyland TL11Cummins LTA10-R
Engine type2x 6-cyl. diese1
Engine output410 hp (306 kW)450 hp (336 kW)
Power Plant
Calculated Values
last changed: 08/2023

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