Diesel multiple units

From the late 1950s diesel multiple units (DMUs) started to replace steam traction on Britain's railway network. By 1968 the transition was complete and these multiple units could be seen throughout the UK from humble branch lines to busy commuter services. In turn these early DMUs have been replaced by the modern versions we are all now used to travelling on.

Fortunately you can still experience the pleasure of riding in these 50 year old units on the GWSR.

 

Class 117

Class 117 Diesel Multiple UnitsComprising cars W51405 (DMS), W59510 (TCL), W51360 (DMBS) (substituting for W51363 currently), this Class 117 unit was purchased in 2011 by Cotswold Diesel Railcar Limited and is now running regular services from Toddington. 

  • Power car driven on each bogie inside axle.
  • Built by Pressed Steel between 1959 and 1961, these 3-car units spent most of their lives on the commuter services out of London, Paddington, Plymouth and Cardiff.
  • 2 x Leyland 680 150hp driving through 4-speed epicyclic gearboxes on each power car.
  • 64 feet x 3
  • Power car: 36 tons Trailer: 30 tons
  • 70 mph

 

Class 122

Class 112 Diesel Multiple UnitsNo W55003 is a Class 122 'Bubblecar' owned by Cotswold Diesel Railcar Limited and is currently undergoing refurbishment plus the creation of wheelchair-friendly accommodation at Toddington. 

  • Driven on each bogie inside axle. Strictly speaking a 1A-A1
  • Built locally by Gloucester Railway Carriage and Wagon Co in 1958, these units served lightly used lines, initially in the Midlands and Scotland. Towards the end of its life W55003 actually worked over our line. The nickname 'bubblecar' has its origins in the very small, one or 2 person 3-wheelers being imported from Germany around the time of their introduction.
  • 2 x Leyland 680 150hp driving through 4-speed epicyclic gearboxes
  • 64 feet
  • 36 tons
  • 70 mph which, given the 'lively ride' you experience at 25 mph, must have been quite exciting.

 

Class 117/107

Class 117/107 Diesel Multiple UnitsComprising cars SC52029 (107 DMCL), W51360 (117 DMBS), this hybrid unit is owned by Cotswold Diesel Railcar Limited and is now undergoing restoration. 

  • Power car driven on each bogie inside axle.
  • The Class 117 DMBS was built by Pressed Steel in 1960 and would have spent most of its life on the commuter services out of London, Paddington, Plymouth and Cardiff.
  • The 107 DMCL was built at BR Derby in 1960 and spent most of its working life in the Glasgow area.
  • 2 x Leyland 680 150hp driving through 4-speed epicyclic gearboxes on each power car.
  • 117 DMBS: 64 feet; 107 DMCL: 58 feet
  • 117 DMBS: 36 tons; 107 DCML: 35 tons
  • 70 mph