British Rail Class 438

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British Rail Class 438 (4-TC)
Weymouth Quay railway station 1986.jpg
Class 438 unit at Weymouth Quay
In service1966–1988
ManufacturerBR/BREL York
Family nameBR Mark 1 EMU
Number built34 sets, 1 spare DTSO
Formation4 car sets - DTSO-TFK-TBSK-DTSO
Fleet numbers401–434, later 8001–8034
Capacity42 First, 160 Standard
Operator(s)British Rail
Depot(s)Bournemouth TMD
Car lengthDTSO: 19.70 m (64 ft 8 in)
TFK/TBSK: 19.65 m (64 ft 6 in)
Width2.82 m (9 ft 3 in)
Maximum speed90 miles per hour (145 km/h)
WeightDTSO: 32.5 tonnes (32.0 long tons; 35.8 short tons)
TFK: 35.4 tonnes (34.8 long tons; 39.0 short tons)
TBSK: 33.6 tonnes (33.1 long tons; 37.0 short tons)
Total: 134 tonnes (132 long tons; 148 short tons)
Train heatingElectric train heating
Braking system(s)Air (EP/Auto)
Safety system(s)AWS
Track gauge1,435 mm (4 ft 8 12 in)

The British Rail 4-TC multiple units were unpowered fixed formation 4 carriage set (fitted with driving cabs at each end) converted by BR at York Works from locomotive-hauled Mark 1 carriages in 1966-1967 and 1974. The units built on experience gained from the prototype 6TC unit. They were initially classified as Class 442 and numbered in the 300 and 400 series. This was later changed to Class 491, under which they spent the majority of their working lives. Shortly before withdrawal they were reclassified Class 438 and the units were renumbered to 8001-8034.