The North Eastern Railway Class D (later London and North Eastern Railway (LNER) Class H1) was a class of 4-4-4T three-cylinder

side tank A tank locomotive or tank engine is a steam locomotive that carries its water in one or more on-board water tanks, instead of a more traditional tender. Most tank engines also have bunkers (or fuel tanks) to hold fuel; in a tender-tank locomo ...

steam locomotive designed by

Vincent Raven Sir Vincent Litchfield Raven, KBE (3 December 1859 – 14 February 1934) was an English railway engineer, and was chief mechanical engineer of the North Eastern Railway from 1910 to 1922. Biography Vincent Raven was born the son of a clergy ...

in 1913. They were used for rural passenger services. Forty five were built in total; a first batch of twenty, then a further twenty five after the War. Between 1931 and 1936, all of the LNER H1 class were rebuilt with a

4-6-2T Under the Whyte notation for the classification of steam locomotives, represents the wheel arrangement of four leading wheels on two axles, six powered and coupled driving wheels on three axles and two trailing wheels on one axle. The locomot ...

wheel layout and re-classified as A8. They were scrapped between 1957 and 1960.

References

D 4-4-4T locomotives Railway locomotives introduced in 1913 Standard gauge steam locomotives of Great Britain Passenger locomotives {{England-steam-loco-stub