R3977 Thompson Class A2/2 4-6-2 'Earl Marischal' BR Green Late Crest 60502 Steam Locomotive option-set-039 DCC Fitted and DCC Sound

DCC Fitted and DCC Sound (LokSound V5

doubling the number of motors while increasing the traction potential and weight for new standard of running smoothness and pulling power

Brush was selected

2x types of sprung buffers

R3977 Thompson Class A2/2 4-6-2 'Earl Marischal' BR Green Late Crest 60502 Steam Locomotive option-set-039 DCC Fitted and DCC SoundUpon becoming Chief Mechanical Engineer of the LNER, Thompson sought to create an unstreamlined, mixed traffic version of Gresley's A4 Pacific locomotives. Being unable to secure permission to construct new locomotives, Thompson decided to rebuild the 2 8 2 P2 Class locomotives as the new A2 2 Class. Thompson advocated divided drive, a system in which the middle cylinder drove the forward two of the six driving wheels whilst the outside cylinders