Manufacturer catalogue image
Era 4 (1948 to 1956) British Railways Early Crest
Inspired by Thompson's rebuilt Gresley K4 in which it was reclassified as a K1/1, the only locomotive in that particular Class, A. H. Peppercorn took advantage of Thompson's retirement in 1946 to develop the design into the K1 Class. The K1 Class, which was made up of 70 locomotives, were all built in Glasgow at the North British Locomotive Company's Park Works over a 10 month period between May 1949 and March 1950. As was the North British Locomotive Company's all of the Class were sent to Eastfield shed, Glasgow for running in before being sent to England where they were used for both freight and express passenger workings. Thirty of the Class were sent to the Eastern Region while the remaining forty were dispatched to the North Eastern Region. Many of the North Eastern K1s were often seen as far North as Edinburgh and early on in their working life were regularly used on the West Highland line. A significant number of those allocated to the Eastern Region were based at March.
All of the Class were fitted with electric lighting and self-cleaning smoke boxes identified with an SC plate situated just beneath the shed plate while some were fitted with AWS (Automatic Warning System). The first 50 K1 locomotives were outshopped in black with 'British Railways' emblazoned on the tender while the remaining twenty were released with the early BR emblem. From 1957 all of the Class received the BR crest. As described the Class were used throughout the former LNER network as they were proven to be an incredible mixed traffic locomotive with each of the Class being paired with a 4200 gallon tender as used with the LNER/BR Class B1 locomotive.
During the early to mid-1950s the K1s were starting to be transferred from the GE Section of the Eastern Region with the result that by 1961 only eight remained at March, however by the middle of 1962 these had been moved to Retford and Doncaster. Withdrawal of the K1s began in December 1962 but it was a very slow demise as it took a full five years before the last locomotive, 62005 was withdrawn from service on the Eastern Region in 1967. Luckily 62005 survived into preservation and can be seen operating, at the time of writing on the North Yorkshire Moors Railway.
Locomotive 62006 entered traffic, allocated to Darlington Shed, on June 15, 1949, where the engine spent nearly five years operating from. Moving to Blaydon Shed on January 31, 1954, 62006 spent its working life in the North-East, spending time allocated to Gateshead from May 6, 1952, Heaton from September 23rd that year and Alnmouth from November 4th. A final spell at Sunderland Shed from June 19, 1966 preceded 62006"s withdrawal from service on September 4th that year, being sold for scrap to Hughes, Bolckow, Blyth during December 1966. The Sir Nigel Gresley Locomotive Trust Ltd is the owner and operator of the A4 Pacific locomotive 4498 / 60007 Sir Nigel Gresley, the post war steam speed record holder.sirnigelgresley.org.uk
* Class names often change over the lifespan of a locomotive, so this is not necessarily the class name used by the operator in the period modelled.
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