Luggage racks were fitted at each end of the saloon, with one able to be locked for mail and parcels.Ī total of 182 units were built. A wheelchair space was provided in the passenger section closest to the accessible toilet. Toilets were fitted to both vehicles, one was wheelchair accessible (as defined at the time of construction) and one standard. The passenger saloons are air conditioned, a first for regional trains in the UK. Other sets were later retrofitted with first class accommodation. Most units were built with standard class accommodation only, some Scottish based sets were fitted with a small first class section in one vehicle. This allowed three car sets to be formed by inserting an additional driving car into a set with an adaptor for two different gangway sizes. Each vehicle is fitted with a BSI autocoupler at both ends, however only the cab ends have automatic electrical connecters. Most units were built with two coaches, but a batch of units contained an additional centre car for the busy Transpennine Route. The engines were rated at 350 hp (260 kW) or 400 hp (300 kW) depending on the batch. Each vehicle is fitted with a diesel engine supplied by Cummins or Perkins, powering a Voith hydraulic transmission driving both axles on the inner bogie. The bodyshells are aluminium with doors at each end of the passenger saloon. The Class 158 is a two or three car diesel unit designed for regional express units.
2.2 Passenger facilities and performance.The Class 159 DMUs are almost identical to the Class 158s, having been converted from Class 158 to Class 159 in two batches to operate express services from London Waterloo to the West of England. They were built to replace many locomotive-hauled trains, and allowed cascading of existing Sprinter units to replace elderly 'heritage' DMUs. The British Rail Class 158 Express Sprinter is a diesel multiple-unit passenger train (or DMU), built for British Rail between 19 by British Rail Engineering Limited (BREL) at its Derby Litchurch Lane Works.
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