J73 could refer to:
The General Electric J73 turbojet was developed by General Electric from the earlier J47 engine. Its original USAF designation was J47-21, but with innovative features including variable inlet guide vanes, double-shell combustor case and 50% greater airflow was redesignated the J73. It was only used in the North American F-86H.
HMS Niger was a Halcyon-class minesweeper of the Royal Navy. She was launched in 1936 and was sunk during the Second World War.
In geometry, a Johnson solid is a strictly convex polyhedron, which is not uniform, and each face of which is a regular polygon. There is no requirement that each face must be the same polygon, or that the same polygons join around each vertex. An example of a Johnson solid is the square-based pyramid with equilateral sides (J1); it has 1 square face and 4 triangular faces.
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Felis is a genus of small and medium-sized cat species native to most of Africa and south of 60° latitude in Europe and Asia to Indochina.
JB or J.B. may refer to:
HMS Kandahar (F28) was a K-class destroyer built for the Royal Navy during the 1930s, named after the Afghan city of Kandahar.
The Beagle class was a class of sixteen destroyers of the Royal Navy, all ordered under the 1908-1909 programme and launched in 1909 and 1910. The Beagles served during World War I, particularly during the Dardanelles Campaign of 1915.
The British Rail Class 73 is a British electro-diesel locomotive. The type is unusual in that it can operate from the Southern Region's 650/750 V DC third-rail or an on-board diesel engine to allow it to operate on non-electrified routes. This makes it very versatile, although the diesel engine produces less power than is available from the third-rail supply so the locomotives are rarely operated outside of the former Southern Region of British Rail. Following the withdrawal and scrapping of the more powerful Class 74 electro-diesels in 1977, the Class 73 was unique on the British railway network until the introduction of the Class 88 electro-diesels in 2017. Ten locomotives have been scrapped.
The London and North Eastern Railway (LNER) produced several classes of locomotive, mostly to the designs of Nigel Gresley, characterised by a three-cylinder layout with a parallel boiler and round-topped firebox. It produced the most iconic locomotive of its day, 4468 'Mallard', the holder of the world steam locomotive speed record. It also built the world-famous 4472 'Flying Scotsman'. However, its locomotive inheritance was much greater than just the 'A4 Class', it also produced highly successful mixed-traffic and freight designs.
The J-class submarines were seven submarines developed by the Royal Navy prior to the First World War in response to claims that Germany was developing submarines that were fast enough to operate alongside surface fleets. Six were completed during mid-1916, while a seventh entered service at the end of 1917.
The Great Western Railway (GWR) 9400 Class is a class of 0-6-0 pannier tank steam locomotive, used for shunting and banking duties.
HMS Trinidad was a Royal Navy Crown Colony-class cruiser. She was lost while serving in the Arctic on convoy duty after being damaged escorting PQ 13 in 1942.
British Rail Class D3/14 was a diesel-electric locomotive built by the London and North Eastern Railway at its Doncaster Works. It had a Petter engine, and Brush Traction electricals. It was absorbed by British Railways on nationalisation, but was withdrawn in the pre-TOPS era.
HMS Samphire was a Flower-class corvette that served in the Royal Navy.
The NER Class L was a class of 0-6-0T steam locomotives of the North Eastern Railway. They were a specialised design, intended for use on the Redheugh and Quayside banks on either side of the River Tyne. They were replaced on the Quayside branch by NER Class ES1 electric locomotives in 1905 but were re-allocated to other duties.
HMS Hardy was a V-class destroyer of the Royal Navy that saw service during the Second World War.
The GER Class T77 was a class of twenty-five 0-6-0 steam locomotives designed by A. J. Hill for the Great Eastern Railway. They all passed to the London and North Eastern Railway at the 1923 grouping and received the classification J19.
The GER Class D81 was a class of twenty-five 0-6-0 steam locomotives designed by A. J. Hill for the Great Eastern Railway. The all passed to the London and North Eastern Railway at the 1923 grouping and received the classification J20.
Cultural deprivation is a theory in sociology where a person has inferior norms, values, skills and knowledge. The theory states that people of the working class experience cultural deprivation and this disadvantages them, as a result of which the gap between classes increases.
The Cricket class and following classes of coastal destroyers were a series of small torpedo boat destroyers (TBDs) intended to complement the Royal Navy's Tribal-class destroyers. The thirty-six vessels which broadly comprised this group actually consisted of several distinct classes, as each contractor built to their own designs.
Baroda and Gujarat States Agency was a political agency of British India, managing the relations of the British government of the Bombay Presidency with a collection of princely states.
Brighton Lovers Walk Traction and Rolling Stock Maintenance Depot is a traction maintenance depot located in Brighton, East Sussex, England. The depot is situated adjacent to the Brighton Main Line and is to the north of Brighton station.