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Quick Reaction Alert
Quick Reaction Alert (QRA) is state of readiness and '' modus operandi'' of air defence maintained at all hours of the day by NATO air forces. The United States usually refers to Quick Reaction Alert as 'Airspace Control Alert'. Some non-NATO countries also maintain QRA, either full-time or part-time. Operation QRA in the United Kingdom Pilots and engineers on QRA duty are at immediate readiness twenty-four hours a day fully dressed in the Crew Ready Room, which are next to the hangars (a hardened aircraft shelter known informally as ''Q-sheds'') which houses the interceptor aircraft, since 2007 the Eurofighter Typhoon. Pilots are on QRA duty around once or twice a month, each a twenty-four-hour shift. Engineers are on QRA duty three or four times a year, each for a twenty-four-hour a day shift for seven days at a time. Two Typhoon aircraft are on duty, along with a Voyager tanker at RAF Brize Norton in Oxfordshire; before 2014 this was carried out by a TriStar. Civili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Combat Readiness
readiness is a condition of the armed forces and their constituent units and formations, warships, aircraft, weapon systems or other military technology and equipment to perform during combat military operations, or functions consistent with the purpose for which they are organized or designed, or the managing of resources and personnel training in preparation for combat. Most armed forces maintain varying levels of readiness by the troops to engage in combat due to economic considerations which vary from minutes to months.Jordan, pp.2-3 In modern armed forces troops designated special forces are usually those kept at the highest state of readiness for combat, and are often alerted only a few hours before being committed to combat. Where time is of the essence in military action being initiated, the troops, such as pilots of interceptor aircraft, may be kept in constant state of combat readiness. See also *Alert crew * Alert state *COGCON *DEFCON *Mobilization *Scrambling (mil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swanwick, Hampshire
Swanwick () is a village in Hampshire, England, east of the River Hamble and north of the M27 motorway. The village is located within the borough of Fareham and is the site of the London Area Control Centre (LACC) and the London Terminal Control Centre (LTCC), part of National Air Traffic Services Air Traffic Control Centre, and Bursledon Brickworks, the last remaining example of a Victorian steam-powered brickworks. Swanwick has no real village centre and the only commercial premises of note is the Elm Tree Public House. Since the 1980s, the gradual spread of housing developments has meant that Swanwick has partly merged with the new development of Whiteley although the only direct vehicular access is via Yew Tree Drive (once a bus only route). Swanwick railway station on the West Coastway Line is approximately one mile south of the village and is nearer Park Gate than Swanwick. The village's "twin" Lower Swanwick is situated two miles west of the village on the edge of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shetland
Shetland, also called the Shetland Islands and formerly Zetland, is a subarctic archipelago in Scotland lying between Orkney, the Faroe Islands and Norway. It is the northernmost region of the United Kingdom. The islands lie about to the northeast of Orkney, from mainland Scotland and west of Norway. They form part of the border between the Atlantic Ocean to the west and the North Sea to the east. Their total area is ,Shetland Islands Council (2012) p. 4 and the population totalled 22,920 in 2019. The islands comprise the Shetland (Scottish Parliament constituency), Shetland constituency of the Scottish Parliament. The local authority, the Shetland Islands Council, is one of the 32 council areas of Scotland. The islands' administrative centre and only burgh is Lerwick, which has been the capital of Shetland since 1708, before which time the capital was Scalloway. The archipelago has an oceanic climate, complex geology, rugged coastline, and many low, rolling hills. The lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Saxa Vord
Remote Radar Head Saxa Vord or RRH Saxa Vord (aka RAF Saxa Vord), is a Royal Air Force radar station located on the island of Unst, the most northern of the Shetland Islands in Scotland. As of July 2019 it is once more a fully operational radar station, after closure in 2006. The station's motto ''Praemoneo de Periculis'' ('Premonition of Peril') reflects its role. RAF Saxa Vord is further north than Saint Petersburg in Russia, and on the same latitude as Anchorage, Alaska. The station was named after Saxa Vord, which is the highest hill on Unst at . It holds the unofficial British record for wind speed, which in 1992 was recorded at — just before the measuring equipment blew away. History Early years The island of Unst has played an important part in the defence of the UK since the outbreak of the Second World War. By 1945, there were two radar sites on the island – one on Saxa Vord hill, and the other at Skaw on the east coast. This latter is the older, being built in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Outer Hebrides
The Outer Hebrides () or Western Isles ( gd, Na h-Eileanan Siar or or ("islands of the strangers"); sco, Waster Isles), sometimes known as the Long Isle/Long Island ( gd, An t-Eilean Fada, links=no), is an island chain off the west coast of mainland Scotland. The islands are geographically coextensive with , one of the 32 unitary council areas of Scotland. They form part of the archipelago of the Hebrides, separated from the Scottish mainland and from the Inner Hebrides by the waters of the Minch, the Little Minch, and the Sea of the Hebrides. Scottish Gaelic is the predominant spoken language, although in a few areas English speakers form a majority. Most of the islands have a bedrock formed from ancient metamorphic rocks, and the climate is mild and oceanic. The 15 inhabited islands have a total population of and there are more than 50 substantial uninhabited islands. The distance from Barra Head to the Butt of Lewis is roughly . There are various important prehisto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RRH Benbecula
Remote Radar Head Benbecula or RRH Benbecula, is an air defence radar station operated by the Royal Air Force. It is located at Cleitreabhal a'Deas, from Lochmaddy on the isle of North Uist in the Outer Hebrides of Scotland. The radar site was previously known as RAF Benbecula, the name having previously been associated with an RAF airfield on the island of Benbecula (now known as Benbecula Airport) and a nearby weapons testing range (now known as MoD Hebrides). History Radar station Although Benbecula Airport is now a civilian airfield, a military presence remained and the RAF Benbecula name continued when a radar station was established. A control and reporting centre, part of the UK Air Surveillance And Control System (ASACS), was constructed at the airfield which linked it to RAF Buchan in Aberdeenshire. The station was downgraded in the late 1990s to a remote radar head and the RAF pulled-out of the main airfield site at Benbecula. Initially under the command and co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Remote Radio Head
A remote radio head (RRH), also called a remote radio unit (RRU) in wireless networks, is a remote radio transceiver that connects to an operator radio control panel via electrical or wireless interface. When used to describe aircraft radio cockpit radio systems, the control panel is often called the radio head. In wireless system technologies such as GSM, CDMA, UMTS, LTE the radio equipment is remote to the BTS/NodeB/eNodeB. The equipment is used to extend the coverage of a BTS/NodeB/eNodeB in challenging environments such as rural areas or tunnels. They are generally connected to the BTS/NodeB/eNodeB via a fiber optic cable using Common Public Radio Interface protocols. RRHs have become one of the most important subsystems of today's new distributed base stations. The RRH contains the base station's RF circuitry plus analog-to-digital/digital-to-analog converters and up/down converters. RRHs also have operation and management processing capabilities and a standardized optical ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UK Air Surveillance And Control System
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 1707 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solway Firth
The Solway Firth ( gd, Tràchd Romhra) is a firth that forms part of the border between England and Scotland, between Cumbria (including the Solway Plain) and Dumfries and Galloway. It stretches from St Bees Head, just south of Whitehaven in Cumbria, to the Mull of Galloway, on the western end of Dumfries and Galloway. The Isle of Man is also very near to the firth. The firth comprises part of the Irish Sea. The firth’s coastline is characterised by lowland hills and small mountains. It is a mainly rural area, with mostly small villages and settlements (such as Powfoot). Fishing, hill farming, and some arable farming play a large part in the local economy, although tourism is increasing. The northern part of the English coast of the Solway Firth was designated as an Area of Outstanding Natural Beauty, known as the Solway Coast, in 1964. Construction of the Robin Rigg Wind Farm in the firth began in 2007. Within the firth, there are some salt flats and mud flats that can b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flight Information Region
In aviation, a flight information region (FIR) is a specified region of airspace in which a flight information service and an alerting service (ALRS) are provided. The International Civil Aviation Organization (ICAO) delegates which country is responsible for the operational control of a given FIR. FIRs are the largest regular division of airspace in use in the world today, and have existed at least since 1947. Smaller countries' airspace is encompassed by a single FIR; larger countries' airspace is subdivided into a number of regional FIRs. Some FIRs encompass the territorial airspace of several countries. Oceanic airspace is divided into oceanic information regions and delegated to a controlling authority bordering that region. The division among authorities is done by international agreement through the International Civil Aviation Organization (ICAO). There is no standard size for FIRs–some are merely vertical extensions of their respective countries, however small they m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prestwick
Prestwick ( gd, Preastabhaig) is a town in South Ayrshire on the west coast of Ayrshire in Scotland about southwest of Glasgow. It adjoins the larger town of Ayr to the south on the Firth of Clyde coast, the centre of which is about south, and the small village of Monkton, Ayrshire, Monkton to the north. It had a population of 14,901 at the 2011 census. The town is served by Glasgow Prestwick Airport, which serves many European destinations as well as transatlantic and other international cargo flights. The town was the first home of The Open Championship, the Open Golf Championship, which was played on the Prestwick Golf Club, Prestwick Old Course from 1860 to 1872. History Prestwick's name comes from the Old English for, ''priest's farm'': ''preost'' meaning "priest" and ''wic'' meaning "farm". The town was originally an outlying farm of a religious house. George T. Flom suggested that the name was of Old Norse origin. In this case, it would mean "priest's bay". From ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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