The Peppercorn Class A1 was a serires of express passenger steam locomotives that were built by the London and North Eastern Railway between 1948 and 1949. They were design by Arthut Peppercorn who was the last Chief Mechanical Engineer of the company during the early BR days. These locomotives were made to cope with the heaviest passenger trains in the East Coast Main Line, being able to haul trains up to 15 coaches and 550 tons while maintaining a speed of 95 to 110 km/h. The 49 engines had three cylinders and double chimney. After a short work life of just 17 years, all engines were scrapped by the summer of 1966.

In 2008 the 50th engine was built based on the original drawings but that is an history for another time.

Buit: 1948 - 1949.
Builder: Doncaster Works/Darlington Works.
Engines built: 49 (nº 60114 to 60162).
First run: August 1948.
Last run: June 1966.
Withdraw October 1962 to June 1966.
Power class: BR: 8P6F.
Power: 2000kW.
Top speed: 100mph (160km/h).
Config: 4-6-2.
Driving dia.: 2.032m.
Lenght:22.24m.
Total Weight: 168.8 t (106.9t for the loco).
Capacity: 9.1t of coal and 23,000L of water.
Boiler pressure: 250psi.