Designed by Wilson Worsdell, the NER P3 class would later be reclassified under the LNER to J27. The J27 was a modification of the earlier NER P2 (LNER J26), the biggest changes were in the depth of the firebox and shallower sloping grate. 115 engines in total were built and over their working careers received many modifications. The class were built to handle long distance freight and mineral trains but were soon displaced once larger engines started to be built. The design proved to be robust and a very capable workhorse, pulling heavy coal trains, with the last J27 being withdrawn in September 1967.
