SIR NIGEL GRESLEY

LNER Class A4 4498 (Sir Nigel Gresley)

Type: Steam Locomotive

Configuration: 4-6-2 “Pacific”

Designer: Sir Nigel Gresley

Built: 1937 at Doncaster Works

Top Speed: 112 mph (Post-war UK steam record, 1959)

Boiler Pressure: 250 psi

Cylinders: 3 (18.5 in × 26 in)

Driving Wheel Diameter: 6 ft 8 in

Tractive Effort: 35,455 lbf

Fuel: Coal

Brakes: Originally vacuum; now dual air and vacuum

Livery: Most famously LNER Garter Blue

Current Status: Operational, mainline certified