The Great Northern Railway (GNR) Class O1 was a class of two-cylinder 2-8-0 steam locomotive designed by Nigel Gresley for heavy freight work and built by the GNR between 1913 and 1919.

The O1 had two 21in diameter cylinders powered by a 5ft 6in diameter boiler which was fitted with a 24-element Robinson superheater. The O1 was Gresley's second design for the GNR and …

The Great Northern O-1 was a class of 145 American 2-8-2 "Mikado"-type steam locomotives built by the Baldwin Locomotive Works between 1911 and 1919 and used by the Great Northern …

Feb 25, 2021 · One of the more interesting aspects of the Groves account, and to an extent in his description of Gresley's O1 type, the period surveyed covers the introduction of superheating …

Robinson launched his design for the GCR in 1911, while Gresley 's two-cylinder 1913 design on the GNR was followed by a three-cylinder version five years later. At Grouping (1923), the …

The Great Northern Railway (GNR) Class O1 was a class of two-cylinder 2-8-0 steam locomotive designed by Nigel Gresley for heavy freight work and built by the GNR between 1913 and 1919.

Class O1 became Class O3 (February 1944) so that O1 could be used for Thompson’s rebuilds from Class O4. The engines were renumbered 3475-94 (1946). Nos. 3487/90/92 were …

The O1 was designed by Sir Nigel Gresley for the Great Northern Railway to reduce the number of heavy coal trains between Grantham and London with more powerful locomotives.

Sep 26, 2004 · Designed by Nigel Gresley for the mineral (e.g. coal) trains in the early days of his superintendency. They were rated at 80 wagons aggregating a trailing load of 1,300 tons (up …

Dec 16, 2024 · The Great Northern Railway (GNR) Class O1 was a class of two-cylinder 2-8-0 steam locomotive designed by Nigel Gresley for heavy freight work and built by the GNR …