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LNER Class A4 4468 Mallard

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LNER Class A4 4468 Mallard
Number 4468 Mallard in York
Mallard. Note "Coronation" train plate.

Years built

03 March 1938


Sir Nigel Gresley
Doncaster Works, Doncaster, South Yorkshire

Number Produced


Years in Operation

03 March 1938 to 25 April 1963

Fleet Numbers




Number Preserved


Number Scrapped


l x w x h)

Length: 70 ft (21.3 metres)


4 ft 8 1⁄2 in (1,435 mm)

V - E - T - D

The LNER (London North Eastern Railway) 4468 Mallard (BR 60022), is a type of LNER Class A4 4-6-2 'Pacific' steam locomotive. The locomotive was built in the LNER Doncaster works on the 3rd of March, 1938.

The Mallard is one of the well known Class A4 Pacifics designed by Sir Nigel Gresley, and holds the record for the fastest steam locomotive in the world. Mallard made the record on July 3rd, 1938, and was also designed for fast express passenger trains; hence the streamlining.


The A4 Pacific locomotives were designed and built in order to compete with the automobile. Back in the 1930s, the growing trend of the automobile greatly reduced profits, not to mention ticket sales, for the railways. LNER fought back when they introduced a new, streamlined locomotive that was capable of making the trip from London to Edinburgh 2 hours faster than the car.

The record, set by Mallard on the 3rd of July, 1938 for fastest steam traction locomotive, was a top speed of 126mph (202kph). This record's validity was originally opposed by some, because the Mallard only ran the record speed for a few yards (metres). It was also set going down hill and the speed documentation wasn't very reliable, but was eventually proven by Sir Nigel Gresley himself. The Mallard soon overheated one of its crankpins during the run, but took less than 9 days to get Mallard into service again. The Mallard's main rival for the record is a German locomotive; the DRG Class 05 No. 002. This locomotive made its run of 124.5mph (200kph) on a level grade crossing, and has reliable documentation. Hence, the DRG Class 05 No. 002 becoming the second-fastest steam locomotive in the world, and the Mallard being the fastest.

During WW2, Mallard was painted in Black in order to blend with the dark background at night in case of air raids. Her number was also changed to 22. In 1948, the big four companies were nationalized into British Railways and Mallard was renumbered to 60022 and was based at Grantham Shed. By the time of her retirement from active revenue service on April 25th, 1963, she was working at Kings Cross shed. Instead of being scrapped, Mallard was donated to the National Railway Museum in York where she resides today.


File:All six A4 pacific locos railway museum York.png
  • Mallard is officially the steam locomotive which achieved the highest officially recorded speed in history.
     Whether or not any other steam locomotives could have achieved a higher speed if properly modified is up to debate.
  • In 2013-14 Mallard was displayed among it's other sister A4 locomotives during the celebrations of the 75th anniversary of Mallard's world-speed record run, held in the National Railway Museum, York, England. The six locomotives gathered were named Dominion of Canada, Bittern, Union of South Africa, Dwight. D. Eisenhower, Sir Nigel Gresley and Mallard.
  • Mallard once made a appeareance in the popular children's book series, The Railway Series. Along with this The Mallard made an appearance in the 1979 Railway Series annual and documentary based off The Railway Series.



  • Book: Collins Eyewitness Guides Train published by Harper Colins
  • Book: The Railway Data File published by Silverdale Books. ISBN: 1-85605-499-3.
  • LNER

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