TT4031A GWR Mk3 Trailer Standard Open 42299 option-set-048 design and development work on

design and development work on the locomotive took place at Robert Stephenson & Co's Newcastle factory and while George Stephenson is acknowledged as the engineer responsible for Rocket

Brass posts

their expected use was to be for freight

Weighted for trouble-free operation

Originally built in 1923 and famous the world over

TT4031A GWR Mk3 Trailer Standard Open 42299 option-set-048 design and development work onIn order to allow running at 125 mph on Britain's Victorian era railways, new rolling stock was needed by British Railways. Significant improvements over the Mk2 included new secondary air suspension between the bogies and the coach body as well as aerodynamic skirting on the underframe. Mk3 coaches are 75ft (23m) long, enabling far greater capacity than older coaches. Mk3 coaches also incorporate disk brakes and wheel slip protection enabling faster