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Time Based Separation
The impact of strong headwinds on an aircraft’s speed during approach results in decreasing landing rates, generating delays and cancellations at airports with a significant cost to airspace users and the travelling public. In early 2000, EUROCONTROL started researching Time Based Separation (TBS), a new operating procedure for separating aircraft by time during strong headwind conditions, instead of distance. TBS addresses headwind disruptions by reducing the spacing between pairs of aircraft. As wake decay is more rapid in strong headwinds conditions, wake vortex is quickly dispersed permitting a safe reduction in the spacing between aircraft through TBS preserving runway throughput. NATS joined the TBS research in SESAR and in 2014 was preparing its first deployment for spring 2015 at London Heathrow airport. Furthermore, TBS is now a part of the SESAR Deployment Programme. Time Based Separation was successfully implemented at Heathrow by NATS and Leidos working in conjunc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tailwind
A tailwind is a wind that blows in the direction of travel of an object, while a headwind blows against the direction of travel. A tailwind increases the object's speed and reduces the time required to reach its destination, while a headwind has the opposite effect. The terms are also used metaphorically in business and elsewhere about circumstances where progress is made harder (headwind) or easier (tailwind). Travel In aeronautics, a headwind is favorable in takeoffs and landings because an airfoil moving into a headwind is capable of generating greater lift than the same airfoil moving through tranquil air, or with a tailwind, at equal ground speed. As a result, aviators and air traffic controllers commonly choose to take off or land in the direction of a runway that will provide a headwind. Aircraft carriers usually turn into the wind during takeoffs and landings, and may increase their own speed. While on take-off and landing, headwinds are good because they allow th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
EUROCONTROL
The European Organisation for the Safety of Air Navigation, commonly known as Eurocontrol (stylised ''EUROCONTROL''), is an international organisation working to achieve safe and seamless air traffic management across Europe. Founded in 1960, Eurocontrol currently has 41 member states and is headquartered in Brussels, Belgium. It has several local sites as well, including an Innovation Hub in Brétigny-sur-Orge, France, the Aviation Learning Centre (ALC) in Luxembourg, and the Maastricht Upper Area Control Centre (MUAC) in Maastricht, the Netherlands. The organisation employs approximately two thousand people, and operates with an annual budget in excess of half a billion Euro. Although Eurocontrol is not an agency of the European Union, the EU has delegated parts of its Single European Sky regulations to Eurocontrol, making it the central organisation for coordination and planning of air traffic control for all of Europe. The EU itself is a signatory of Eurocontrol and all EU me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wake Vortex
Wake turbulence is a disturbance in the atmosphere that forms behind an aircraft as it passes through the air. It includes variety of elements, the most significant of which are wingtip vortices and jetwash. Jetwash refers to the rapidly moving gases expelled from a jet engine; it is extremely turbulent but of short duration. Wingtip vortices, however, are much more stable and can remain in the air for up to three minutes after the passage of an aircraft. It is therefore not true turbulence in the aerodynamic sense, as true turbulence would be chaotic. Instead, it refers to the similarity to atmospheric turbulence as experienced by an aircraft flying through this region of disturbed air. Wingtip vortices occur when a wing is generating lift. Air from below the wing is drawn around the wingtip into the region above the wing by the lesser amount of pressure above the wing, causing a vortex to trail from each wingtip. The strength of wingtip vortices is determined primarily by the we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NATS Holdings
NATS Holdings, formerly National Air Traffic Services and commonly referred to as NATS, is the main air navigation service provider in the United Kingdom. It inherited the traditions of UK air traffic control, which (founded over Croydon Airport) was the world's first air traffic control regime. It provides en-route air traffic control services to flights within the UK flight information regions and the Shanwick Oceanic Control Area, and provides air traffic control services to 14 UK airports. The workforce of NATS is mainly made up of air traffic controllers (ATCOs), air traffic control engineers (ATCEs), air traffic services assistants (ATSAs) and science technical analytical and research staff (STARs). Administrative and support staff make up the remainder of the 4,200 or so employees of NATS. NATS is split into two main service provision companies: ''NATS En-Route PLC'' (NERL) and ''NATS Services Ltd'' (NSL). * NERL is the sole provider of civilian en-route air traffic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SESAR Joint Undertaking
The Single European Sky ATM Research 3 Joint Undertaking is an institutionalised European public-private partnership, established in 2021, to accelerate through research and development the delivery of the Digital European Sky, as part of the SESAR project. Initiated in 2004, the SESAR projectis the technological arm of the EU's Single European Sky initiative to integrate EU Member States' ATM systems. Bringing together the EU, Eurocontrol, and more than 50 organisations covering the entire aviation value chain, including drones, this European partnership is investing more than EUR 1.6 billion between now and 2030 to accelerate, through research and innovation, the delivery of an inclusive, resilient and sustainable Digital European Sky. Overview Advancing innovations applied today in the digital economy will result in a radical transformation of Europe’s aviation infrastructure, making air transport smarter, more sustainable, connected and accessible to all. Transforming ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Heathrow Airport
Heathrow Airport (), called ''London Airport'' until 1966 and now known as London Heathrow , is a major international airport in London, England. It is the largest of the six international airports in the Airports of London, London airport system (the others being Gatwick Airport, Gatwick, London City Airport, City, Luton Airport, Luton, Stansted Airport, Stansted and London Southend Airport, Southend). The airport facility is owned and operated by Heathrow Airport Holdings. In 2021, it was the List of busiest airports by international passenger traffic, seventh-busiest airport in the world by international passenger traffic and List of the busiest airports in Europe, eighth-busiest in Europe by total passenger traffic. Heathrow was founded as History of Heathrow Airport#1920s, a small airfield in 1929 but was developed into a much larger airport after World War II. The airport lies west of Central London on a site that covers . It was gradually expanded over seventy-five year ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wake Turbulence
Wake turbulence is a disturbance in the atmosphere that forms behind an aircraft as it passes through the air. It includes variety of elements, the most significant of which are wingtip vortices and jetwash. Jetwash refers to the rapidly moving gases expelled from a jet engine; it is extremely turbulent but of short duration. Wingtip vortices, however, are much more stable and can remain in the air for up to three minutes after the passage of an aircraft. It is therefore not true turbulence in the aerodynamic sense, as true turbulence would be chaotic. Instead, it refers to the similarity to atmospheric turbulence as experienced by an aircraft flying through this region of disturbed air. Wingtip vortices occur when a wing is generating lift. Air from below the wing is drawn around the wingtip into the region above the wing by the lesser amount of pressure above the wing, causing a vortex to trail from each wingtip. The strength of wingtip vortices is determined primarily by the we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air Traffic Control In Europe
The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth's surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation). By mole fraction (i.e., by number of molecules), dry air contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1% at sea level, and 0.4% over the entire atmosphere. Air composition, temperature, and atmospheric pressure vary with altitude. Within the atmosphere, air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
