What is British Rail Class 438?
{{Infobox Train | name = British Rail Class 438 (4-TC) | background = #012545;color:white | image = Weymouth Quay railway station 1986.jpg | imagesize = 300px | caption = Class 438 unit at [[Weymouth Quay railway station|Weymouth Quay]] | service = 1966–1988 | manufacturer = BR/BREL York | family = BR Mark 1 EMU | Constructed = 1966–1967, 1974 (converted) | formation = 4 car sets - DTSO-TFK-TBSK-DTSO | numberbuilt = 34 sets, 1 spare DTSO | designation = 401–434, later 8001–8034 | weight = DTSO: {{convert|32.5|t}}<br>TFK: {{convert|35.4|t}}<br>TBSK: {{convert|33.6|t}}<br>Total: {{convert|134|t}} | capacity = 42 First, 160 Standard |Operator = [[British Rail]] |Depots = Bournemouth TMD | carlength = DTSO: {{convert|19.70|m|ftin|0|abbr=on}}<br> TFK/TBSK: {{convert|19.65|m|ftin|0|abbr=on}} | width = {{convert|2.82|m|ftin|0|abbr=on}} | maxspeed = {{convert|90|mph|km/h|0}} |brakes = Air (EP/Auto) | safety = [[Automatic Warning System|AWS]] | hvac = Electric train heating | bogies = B5 | gauge = {{RailGauge|sg}} }} The [[British Rail]] '''[[British Rail unit designations|4-TC]]''' multiple units were unpowered fixed formation 4 carriage sets (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 [[British Rail Class 6Pul#6TC|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. {{British Rail EMU}} {{transport-stub}} [[Category:British Rail electric multiple units|438]]