Below are the names and numbers of the steam locomotives that comprised the LNER Gresley Classes A1 and A3, that ran on the Great Northern (GNR) and latterly the London and North Eastern Railway network.

Realising the need for standardisation, Gresley adopted his GNR Pacific design as the standard express passenger locomotive for the LNER main line, designating it 'A1' within the LNER locomotive classification system. The choice was made after comparative trials with an equivalent North Eastern Railway (NER) Pacific, classified 'A2'.

2010年6月14日 · LNER Gresley Classes A1 and A3s on the East Coast Main Line Trains of London and North Eastern Railway on the East Coast Main Line Locomotive turntables in the United Kingdom

The London and North Eastern Railway LNER Gresley Classes A1 and A3 locomotives represented two distinct stages in the history of the British 4-6-2 "Pacific" steam locomotives designed by Nigel Gresley.

They were designed to haul the fastest and heaviest trains on the LNER. The first two engines appeared from Doncaster works as GNR locomotives 1470 and 1471 (later 4470 and 4471 and then BR 60113 and 60102) and they were originally classified as A1 engines.

The London and North Eastern Railway LNER Gresley Classes A1 and A3 locomotives represented two distinct stages in the history of the British 4-6-2 "Pacific" steam locomotives designed by Nigel Gresley.

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LNER class A1 Pacific No 4474, not yet named, departs from Paddington with the 1.30pm Plymouth express in April 1925 during the exchange trials with the GWR. F.R. Hebron/Rail Archive Stephenson

A1 Pacific 4474 'Victor Wild' passes Wendover with an up express for Marylebone, 3/6/39. At the time the loco was allocated to 9G Gorton but 10 days later it was reallocated to Leicester GC