The Great Northern Railway Class H2 and H3 (classified K1 and K2 by the LNER) was a class of 2-6-0 steam locomotive designed for mixed-traffic work. The class was created as a locomotive which could haul heavier goods trains at speeds of up to 40 mph.

As is customary, engine classes are organized according to the man who was locomotive superintendent when the class was introduced, and to whom the design is often attributed. Six men held this post during the existence of the Great Northern Railway.

The Great Northern Railway class H2 and H3 (classified K1 and K2 by the LNER) was a class of 2-6-0 steam locomotive designed for mixed-traffic work. The class was created as a locomotive which could haul heavier goods trains at speeds of up to 40 mph.

The Great Northern Railway Class H4 (classified K3 by the LNER) was a class of 2-6-0 steam locomotive designed for mixed-traffic work. The type was a more powerful development of the earlier H3 (LNER K2) class and was notable at the time, as the 6-foot-diameter (1.8 m) boilers were the largest fitted to any British locomotive to that date.

These were fitted to the next batch of 2-6-0s which were ordered in August 1913 to become GNR Class H3 (LNER Class K2). The firebox was 6in longer although the throatplate sloped backwards resulting in the same length at the base. The larger boiler also allowed the fitting of a …

Gresley Class H2 2-6-0 10 engines built with 4'-8" diam. boilers (LNER K1), rebuilt later with 5'-6" diam. boilers GNR H3 (LNER K2). Gresley Class H3 2-6-0 65 engines built with 5'-6" diam. boilers (LNER K2). The majority of the boiler changes took place at Cowlairs instead of …

Feb 25, 2021 · Also notes that exhaust steam injectors of F pattern (as fitted to K3 class and GNR Atlantics) was more reliable than H type fitted to LNER Pacifics and V2 class which mainly ran on live steam unless newly ex-works.

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Die 65 Lokomotiven der H3 Class der Great Northern Railway (GNR) mit der Achsfolge 2-6-0 wurden von Nigel Gresley entworfen und von 1913 bis 1921 gebaut. Die Maschinen waren eine Weiterentwicklung der GNR H2 Class, deren zehn Exemplare zwischen 1920 und 1937 ebenfalls zu H3 Class umgebaut wurden.

Described in OS Nock (RWC III, pl 22) as generally similar in capability to Ivatt's 0-6-0s, these American engines were ordered to cover a power shortage in the West Riding.