LNER Class A3 4472 Flying Scotsman

express steam locomotive

LNER A1 and A3 4472 Flying Scotsman is a British steam locomotive. It is a LNER Class A3 locomotive, and has a 4-6-2 wheel configuration. It was built in 1923, during the Interwar period in the aftermath of World War 1 from 1918-1939. It was originally built as an LNER Class A1 Pacific in 1923 and it was rebuilt in 1947 as a A3 Pacific after World War 2 ended in 1945. It was withdrawn in 1963 and later preserved and saved from being scrapped during the Cold War.

Flying Scotsman
Flying Scotsman on the West Somerset Railway on 11 September 2017 in BR green livery with prominent German-style smoke deflectors and double chimney.
Type and origin
Power typeSteam
DesignerNigel Gresley
BuilderDoncaster Works
Build dateFebruary 1923 (built as A1) 1947 (rebuilt as A3)
Specifications
Configuration:
 • Whyte4-6-2
Gauge4 ft 8 12 in (1,435 mm) standard gauge
Driver dia.80 in (2,032 mm) diameter
Length70 ft (21.34 m)
Height13 ft (3.96 m)
Loco weight96.25 long tons (97.79 t; 107.80 short tons)
Cylinders3
Performance figures
Tractive effort
  • as built: 29,835 lbf (132.71 kN)
  • as A3: 32,910 lbf (146.39 kN)
Career
OperatorsLondon and North Eastern Railway, British Railways
ClassA3
Numbers
  • 1472 (to February 1924)
  • 4472 (February 1924 – January 1946)
  • 502 (January–May 1946)
  • 103 (May 1946–December 1948)
  • 60103 (December 1948 on)
Official nameFlying Scotsman
Retired15 January 1963
Restored1968, 1996, 2016
Current ownerNational Railway Museum

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