The first London and North Eastern Railway (LNER) Class A2 was a class of 4-6-2 steam locomotive designed by Vincent Raven for the North Eastern Railway (as NER class 4.6.2). Two were built by the NER in 1922 before the grouping and another 3 by the LNER in 1924. Their LNER numbers were 2400–2404. All five locomotives were named by the LNER. Because of the great length of their parallel boilers, the Raven pacifics earned the nickname 'Skittle-alleys'.