L1, L01, L.1, L 1 or L-1 may refer to:
L5 or L-5 may refer to:
L2, L2, L02, L II, L.2 or L-2 may refer to:
C2 or a derivative (C-2, C2, etc.) may refer to:
L3, L03, L.3 or L-3 may refer to:
Under the Whyte notation for the classification of steam locomotives, a 2-6-4 locomotive has two leading wheels, six coupled driving wheels and four trailing wheels.
R1, R.I., R01 or R-1 may refer to:
Dugald Drummond was a Scottish steam locomotive engineer. He had a career with the North British Railway, LB&SCR, Caledonian Railway and London and South Western Railway. He was the older brother of the engineer Peter Drummond, who often followed Dugald's ideas in his own work.
The Metropolitan Railway H Class consisted of eight 4-4-4T steam locomotives, numbered 103 to 110. They were built by Kerr, Stuart & Co of Stoke on Trent in 1920 at a cost of £11,575 each. A "notable addition" to the Metropolitan Railway, these locomotives were purchased for the express passenger trains on the mainline between Harrow —the change point from electric locomotives—and Aylesbury or Verney Junction.
The Metropolitan Railway K Class consisted of six 2-6-4T steam locomotives, numbered 111 to 116.
A condensing steam locomotive is a type of locomotive designed to recover exhaust steam, either in order to improve range between taking on boiler water, or to reduce emission of steam inside enclosed spaces. The apparatus takes the exhaust steam that would normally be used to produce a draft for the firebox, and routes it through a heat exchanger, into the boiler water tanks. Installations vary depending on the purpose, design and the type of locomotive to which it is fitted. It differs from the usual closed cycle condensing steam engine, in that the function of the condenser is primarily either to recover water, or to avoid excessive emissions to the atmosphere, rather than maintaining a vacuum to improve both efficiency and power.
Under the Whyte notation for the classification of steam locomotives, 0-8-4 represents the wheel arrangement of no leading wheels, eight powered and coupled driving wheels on four axles, and four trailing wheels on two axles.
J1, J01, J.I, J-I or J-1 may refer to:
The London and North Eastern Railway (LNER) Class A8 was a type of 4-6-2T steam locomotive, designed by both Vincent Raven and Nigel Gresley. They were rebuilt from the LNER Class H1s, a 4-4-4T class.
The North Eastern Railway Class D was a class of 4-4-4T three-cylinder side tank steam locomotive designed by Vincent Raven in 1913. They were used for rural passenger services. Forty five were built in total; a first batch of twenty, then a further twenty five after the War.
The London and North Eastern Railway (LNER) Class L1 was used for two different types of 2-6-4T steam locomotive at different times:
The London and North Eastern Railway (LNER) Thompson Class L1 was a class of 2-6-4T steam locomotives designed by Edward Thompson. The prototype no. 9000 was built in 1945, but the remaining 99 were built under British Railways jurisdiction between 1948–1950. The prototype was well received, however the production batch were not, and all were withdrawn and scrapped between 1960 and 1962.
The NER Class X was a class of 4-8-0T tank locomotive designed by Wilson Worsdell for the North Eastern Railway. They were intended for use as powerful shunting engines to arrange and move coal wagons for loading into ships. In total 15 were built, 10 by the NER between 1909 and 1910, and a further five in 1925 by the London and North Eastern Railway (LNER). They had three cylinders with divided drive: the inside cylinder driving the leading axle, the outside cylinders driving the centre.
The GCR Class 1B was a class of 2-6-4T (tank) locomotives on the Great Central Railway. They were notable as the first locomotives of the 2-6-4T wheel arrangement to be used by a British standard-gauge railway; there had been two narrow-gauge examples on the Leek & Manifold Valley Light Railway since 1904.
The GER Class S44 was a class of forty 0-4-4T steam locomotives designed by James Holden for the Great Eastern Railway. They all passed to the London and North Eastern Railway at the 1923 grouping and received the classification G4.
Despite the advent of electric and diesel locomotives in the mid-20th century, steam locomotives continued to be used and constructed into the 21st century. The regular use of steam locomotives in non-tourist revenue service concluded in 2024.