The production ‘Deltics’ were a powerful Type 5 locomotive, designed for high-speed express passenger services on the East Coast Main Line. When introduced in 1961, these were the most powerful diesel locomotives in the world. Powered by two big Napier diesel engines, these locomotives – later known as Class 55s – were capable of speeds of up to 117mph (188 km/h) and all were given names in the best tradition of East Coast express locomotives.
Known affectionately as ‘KOYLI’ by enthusiasts, 55002 is finished in a two-tone green livery, reminiscent of the early 1960s, but with full yellow ends and the classic white cab window surrounds.