4-6-2

plural 4-6-2s

1. rail transportUnder the Whyte notation system, the wheel arrangement of a steam locomotive that has four coupled leading wheels, six coupled driving wheels, and a pair of trailing wheels; a locomotive with this arrangement.

   Therefore, the new standard design in fact has materialised as a 4-6-2 with two 20 in. cylinders and a boiler pressure of 250 lb. per sq. in.

   1951 April 28, Stirling Everard, “A Matter of Pedigree”, in Railway Magazine, number 600, page 272

   Synonyms: Pacific