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 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.

The first ten locomotives were built at the GNR's Doncaster Works in 1920, to the design of Nigel Gresley. Six further batches were built at Doncaster and Darlington Works, Armstrong Whitworth, Robert Stephenson and Company and the North British Locomotive Company. The last examples were delivered in 1937, with a total of 193 locomotives having ...

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.

The following is a list of locomotives built for the Great Northern Railway. 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 class were later developed into the more powerful H4 (LNER K3) class.

The Great Northern Railway Class H4 was a class of 2-6-0 steam locomotive designed for mixed-traffic work.

2018年6月13日 · English: Great Northern Railway Gresley Class H4 2-6-0 locomotives Later LNER K3 class

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.

No. 203 was a class H4 2-6-0 steam locomotive that was built for the London and North Eastern Railway by Darlington Works in 1925. 203 & its siblings were mixed-traffic locomotives. On the 2nd July, 1925, the 1925 Centenary Celebrations was held at Darlington and there were cavalcade of locomotives and No. 203 was also in the cavalcade.

Gresley designed and patented an unusual pony truck that featured swing links on the bolster above the center pin line and the one below. Two points on each bolster connected to the ends of arms above (upper bolster) and below (lower bolster). The system acted to equalize the weight on the two pony truck wheels, stabilizing and smoothing the ride.