Hornby R3984 LNER, P2 Class, 2-8-2, 2002 'Earl Marischal' - Era 3Product Info The London and North Eastern Railway (LNER) Edinburgh to Aberdeen route had steep gradients and tight curves and the express passenger service was usually worked by a double header of two small engines. To overcome this situation, Nigel Gresley, Chief Mechanical Engineer (CME) of the LNER began designing a new locomotive at the LNER Doncaster Works in 1932. The 2 8 2 configured locomotive was given the classification P2 and had four