Title: British Rail Class 20 - Wikipedia
Headings: British Rail Class 20
British Rail Class 20
From Wikipedia, the free encyclopedia
Contents
Overview
Operation
British Rail
After privatisation
Sub-classes
Liveries
British Rail
Privatisation
Accidents and incidents
In popular culture
Preservation
Model railways
Notes
References
Sources
Further reading
External links

Content: Contents
1 Overview
2 Operation
2.1 British Rail
2.2 After privatisation
3 Sub-classes
4 Liveries
4.1 British Rail
4.2 Privatisation
5 Accidents and incidents
6 In popular culture
7 Preservation
8 Model railways
9 Notes
10 References
10.1 Sources
11 Further reading
12 External links
Overview
Designed around relatively basic technology, the 73-tonne locomotives produce 1,000 horsepower (750 kW) and can operate at up to 75 mph (121 km/h). Designed to work light mixed freight traffic, they have no train heating facilities. Locomotives up to D8127 were fitted with disc indicators in the style of the steam era; when headcodes were introduced in 1960 the locomotive’s design was changed to incorporate headcode boxes. Although older locomotives were not retro-fitted with headcode boxes, a few of the earlier batch acquired headcode boxes as a result of repairs. Unusually for British designs, the locomotive had a single cab. This caused serious problems with visibility when travelling nose first, though in these circumstances the driver's view is comparable to that on the steam locomotives that the Class 20s replaced. It was common however to find Class 20s paired together at the nose, with their cabs at opposite ends, ensuring that the driver could quite clearly see the road ahead. Two Class 20s, coupled nose to nose, hauling a freight train in 1986
The Class 20 saw only limited service on passenger trains. A small number were fitted with a through pipe for steam heating, primarily for use in conjunction with a Class 27 locomotive on the West Highland Line.