Class 55: 55019
Steam
Diesel
Wagons
Coaches
Class 55: 55019
The British Rail Class 55, also known as a Deltic, is a class of diesel locomotive built in 1961 and 1962 by English Electric for British Railways. They were designed for the high-speed express passenger services on the East Coast Main Line (ECML) between Edinburgh and London King's Cross. They gained the name 'Deltic' from the prototype locomotive, DP1 Deltic (the running number DP1 was never carried), which in turn was named after its Napier Deltic power units. At the time of their introduction into service, the Class 55s were the most powerful single-unit diesel locomotives in the world, with a power output of 3,300 hp (2,500 kW). They had an official maximum speed of 100 miles per hour (160 km/h), however this was frequently exceeded, especially in their later years of service, with speeds of up to 117 miles per hour (188 km/h), being recorded on level gradients, and up to 125 miles per hour (201 km/h) whilst decending Stoke Bank
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