Preserved Great Western Railway vehicle no. 814 at the Didcot Railway Centre.
In service
1959–2004
Manufacturer
BR Wolverton & York
Family name
British Railways Mark 1
Constructed
1959, 1968
Number built
9
Fleet numbers
80450–80458
Operators
British Railways
Specifications
Car length
64 ft 6 in (19.66 m)
Width
9 ft 3 in (2.82 m)
Height
12 ft 9+1⁄2 in (3.90 m)
Maximum speed
90–100 mph (145–161 km/h)
Weight
34–36 tonnes (33.5–35.4 long tons; 37.5–39.7 short tons)
HVAC
Dual (steam & electric), ETH 3 or 4
Bogies
BR2 or B5
Braking system(s)
Vacuum or Dual (Air & Vacuum)
Track gauge
4 ft 8+1⁄2 in (1,435 mm)
A brake Post Office stowage van is a type of rail vehicle built for use in a travelling post office.
British Rail built nine of these vehicles between 1959 and 1968, to two similar designs, both based on the Mark 1 coach design. They were numbered in the range 80450-80458. Following the Great Train Robbery, vehicles from 80456 onwards featured a revised design with smaller windows.
In the early 1970s, British Rail introduced the TOPS classification system. Vehicles were given the TOPS code NU, followed by an A if they were air-braked, V if vacuum-braked, or an X if they had both air and vacuum brakes.
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