Class 40

The Class 40 was one of the early classes of diesel locomotive built by British Railways as part of their modernisation plan which would ultimately replace steam. Class 40s served across the rail network being allocated to London Midland, Eastern, North Eastern and Scottish Regions. Initially the class was used on top link expresses though their performance, while adequate on some routes like the West Coast Main Line, was not on other routes and they were replaced by more powerful locomotives on expresses before long.

One drawback with the Class 40 was their weight, at over 130 tons, and the long 1-Co-Co-1 bogies with extra unpowered wheels to carry the bulk. One Class 40 gained a bit of notoriety early in it's career as it was hauling the train involved in the Great Train Robbery in 1962.

Number built: 200
Built: 1958-62
Builder: English Electric
Engine: English Electric 12CSVT Mark 2
Power: 2, 000 hp (1, 490 kW)

The popular Class 40, known as the Whistler due to the sound they make, continued to serve BR well, much of the time on freights and secondary passenger duties. Withdrawals began in the late 1970s and all were withdrawn by 1985 though 7 have been preserved though not all currently in running order.
40 106 at Highley

40 118 at Tyseley Loco Works

Class 92

Designed for freight and overnight passenger traffic through the Channel Tunnel the Class 92 is an advanced and powerful electric locomotive that can operate on electricity drawn from both with 750v DC third rail and 25kV AC overhead lines. Unfortunately for the Class 92 a lot of their planned work disappeared while they were being built meaning that many were stored out of use for a number of years, at one stage in the early 2000s over half the fleet was in storage. Nowadays more have been activated, some being exported to work in Europe. However the reliability of those that do remain in service on British rails has sometimes been questionable.

Number built: 46
Built: 1993-95
Builder: Brush Traction
Engine: ABB 6FRA 7059B traction motors
Power: 6, 700 hp (5, 000 kW) - 25kV AC
5, 360 hp (4, 000 kW) - 750v DC

The Class 92 is a complicated locomotive with many systems duplicated to avoid the chance of failure in the Channel Tunnel. Most of their work (of those not in storage or working in Europe) these days is on freight but some are also being used on Caledonian sleeper services from London to Scotland, however a number of failures have seen the introduction on these services delayed. One interesting piece of trivia is that the very last train to be run on British Rail late on 21/11/1997 was hauled by 92 003.
Euro Porte 2 92 028 and Caledonian Sleeper 92 014 at Stafford

EWS 92 011 at Peckham Rye