R3984 Class P2 2-8-2 2002 ‘Earl Marischal’ LNER Green Steam LocomotiveThe 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 driving axles for