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British Rail Class 20
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British Rail Class 20
The British Rail Class 20, otherwise known as an English Electric Type 1, is a class of diesel-electric locomotive. In total, 228 locomotives in the class were built by English Electric between 1957 and 1968, the large number being in part because of the failure of other early designs in the same power range to provide reliable locomotives.
The locomotives were originally numbered D8000–D8199 and D8300–D8327. They are known by railway enthusiasts as "Choppers".
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, and a guard can watch the train from the other locomotive without the need for a brakevan.
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. Otherwise their use was limited to summer relief services, particularly to Skegness often under the adopted title of The Jolly Fisherman starting from various places including Burton-on-Trent, Stoke-on-Trent, Derby and Leicester. Also occasionally other holiday resorts on the east coast of England, occasional duties as a pilot, and short distance diversions of electric-hauled trains over non-electrified lines.
The shift of light mixed freight to the road network left British Rail with an oversupply of small locomotives. The Class 20s, however, could work in multiple and so could handle heavier traffic. Most spent the majority of their working lives coupled nose to nose in pairs to provide a more useful 2,000 hp (1,500 kW) unit and to solve the visibility problems.
As of 2024, most have now been withdrawn, but a small number remain in consistent mainline service with Balfour Beatty in addition to other charter operators including LSL TOC. Industrial use of the Class 20 continues at Hope Cement Works with locomotives supplied by Swietelsky (formerly Harry Needle Railroad Company). Several that are usually operated singly have been fitted with nose-mounted video cameras as a way of solving the visibility problems.[citation needed]
The Série 1400 locomotives of Portuguese Railways (CP) and the G class locomotives of Midland Railway of Western Australia are based on the BR Class 20s, with the latter units featuring a different cab, based on the Jamaican Railways Class 81.[citation needed]
In June 1957, D8000 was delivered to Devons Road depot in Bow, London. The rest of the first batch of Class 20s were delivered to Devons Road over the following nine months, to work cross-London transfer freights. The following eight locos allocated to Hornsey depot. After a trial with D8006, D8028–D8034 were allocated for work in highland Scotland, and had tablet catcher recesses built into the cabsides. D8035–D8044 were originally to be allocated to Norwich, but were actually used for empty coaching stock (ECS) workings in and out of London Euston. D8050–D8069 were allocated to the new Tinsley TMD in South Yorkshire, from where they regularly worked into Lincolnshire and East Yorkshire. D8070–D8127 were sent to operate in the Scottish Lowlands, particularly in the Forth-Clyde area, and the Fife coalfield. This completed the original orders for 128 locos, the last being delivered in August 1962.
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British Rail Class 20
The British Rail Class 20, otherwise known as an English Electric Type 1, is a class of diesel-electric locomotive. In total, 228 locomotives in the class were built by English Electric between 1957 and 1968, the large number being in part because of the failure of other early designs in the same power range to provide reliable locomotives.
The locomotives were originally numbered D8000–D8199 and D8300–D8327. They are known by railway enthusiasts as "Choppers".
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, and a guard can watch the train from the other locomotive without the need for a brakevan.
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. Otherwise their use was limited to summer relief services, particularly to Skegness often under the adopted title of The Jolly Fisherman starting from various places including Burton-on-Trent, Stoke-on-Trent, Derby and Leicester. Also occasionally other holiday resorts on the east coast of England, occasional duties as a pilot, and short distance diversions of electric-hauled trains over non-electrified lines.
The shift of light mixed freight to the road network left British Rail with an oversupply of small locomotives. The Class 20s, however, could work in multiple and so could handle heavier traffic. Most spent the majority of their working lives coupled nose to nose in pairs to provide a more useful 2,000 hp (1,500 kW) unit and to solve the visibility problems.
As of 2024, most have now been withdrawn, but a small number remain in consistent mainline service with Balfour Beatty in addition to other charter operators including LSL TOC. Industrial use of the Class 20 continues at Hope Cement Works with locomotives supplied by Swietelsky (formerly Harry Needle Railroad Company). Several that are usually operated singly have been fitted with nose-mounted video cameras as a way of solving the visibility problems.[citation needed]
The Série 1400 locomotives of Portuguese Railways (CP) and the G class locomotives of Midland Railway of Western Australia are based on the BR Class 20s, with the latter units featuring a different cab, based on the Jamaican Railways Class 81.[citation needed]
In June 1957, D8000 was delivered to Devons Road depot in Bow, London. The rest of the first batch of Class 20s were delivered to Devons Road over the following nine months, to work cross-London transfer freights. The following eight locos allocated to Hornsey depot. After a trial with D8006, D8028–D8034 were allocated for work in highland Scotland, and had tablet catcher recesses built into the cabsides. D8035–D8044 were originally to be allocated to Norwich, but were actually used for empty coaching stock (ECS) workings in and out of London Euston. D8050–D8069 were allocated to the new Tinsley TMD in South Yorkshire, from where they regularly worked into Lincolnshire and East Yorkshire. D8070–D8127 were sent to operate in the Scottish Lowlands, particularly in the Forth-Clyde area, and the Fife coalfield. This completed the original orders for 128 locos, the last being delivered in August 1962.
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