The London and North Eastern Railway (LNER) Peppercorn Class A1 is a type of express passenger steam locomotive. Forty-nine original Peppercorn Class A1s were built to the design of Arthur Peppercorn (who was the last Chief Mechanical Engineer (CME) of the LNER) during the early British Railways era, but all were scrapped with the discontinuation of steam, with none of the original production run surviving into preservation. In 2008, a brand new 50th Peppercorn A1 locomotive, 60163 Tornado, was completed. Background Most of the former LNER Class A1 locomotives designed by Sir Nigel Gresley had been rebuilt as LNER Class A3 locomotives prior to this class being conceived. The few straggling LNER Class A1 locomotives that remained unrebuilt during the tenure of Peppercorn's predecessor, Edward Thompson, were redesignated by him as Class A10s in preparation for the construction of his new Class A1 locomotives. Thompson rebuilt the pioneer LNER Pacific Great Northern in 1945; originally this was the new Class A1, but the rebuild was not repeated. Instead, initiated by Thompson but largely taken forward by his successor Arthur Peppercorn, Great Northern was designated Class A1/1, and a new class of Peppercorn A1s ordered. The locomotives were designed to cope with the heaviest passenger trains in the post-war period on the East Coast Main Line (London – York – Newcastle – Edinburgh – Aberdeen) which consisted normally of trains with up to 15 coaches and up to 550 tons. The Peppercorn A1s were able to pull such a train on the flat at a speed of 60–70 mph (95-110 km/h). The class used a double Kylchap chimney system and, like previous LNER Pacifics, had a 3-cylinder arrangement. Original locomotives Construction The new A1s were ordered by the LNER but were delivered after the LNER had been nationalised to form part of British Railways at the start of 1948. The 49 engines were built at the Eastern Region's Doncaster and Darlington works between 1948 and 1949. Withdrawal By summer of 1966, all 49 class members had gone for scrap. The last to be withdrawn from stock was No. 60145 Saint Mungo, after a working life of just 17 years. 60145 Saint Mungo was planned to be preserved by Geoff Drury; however, this ultimately was unsuccessful and none of the original locomotives were preserved. List of original locomotives Below is a list of original Peppercorn A1 Locomotives Notes on names The names