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Hardstand
A hardstand (also hard standing and hardstanding in British English) is a paved or hard-surfaced area on which vehicles, such as cars or aircraft, may be parked. The term may also be used informally to refer to an area of compacted hard surface such as Macadam#Water-bound macadam, macadam. Uses Hardstands are found at airports, military building, military facilities, freight terminals, and other facilities where heavy vehicles need to be parked for significant periods of time. They also exist, paved or unpaved, at places where road vehicles are parked. At airports, hardstands enable airliners to board or offload passengers using stair trucks or mobile ramps, and (on smaller aircraft) built-in airstairs, without needing dedicated jet bridges. Purpose The purpose of a hardstand is to provide a strong surface for stationary vehicles, including where the vehicles may otherwise sink into the ground if left for extended periods of time. A hardstand is configured with a slope for drain ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airport Apron
The airport apron, apron, flight line, or ramp is the area of an airport where aircraft are parked, unloaded or loaded, refueled, boarded, or maintained. Although the use of the apron is covered by regulations, such as lighting on vehicles, it is typically more accessible to users than the runway or taxiway. However, the apron is not usually open to the general public, and a permit may be required to gain access. An apron's designated areas for aircraft parking are called aircraft stands. By extension, the term ''apron'' is also used to identify the air traffic control (ATC) position responsible for coordinating movement on this surface at busier airports. When the aerodrome control tower does not have control over the apron, the use of the apron may be controlled by an apron management service (also known as apron control or apron advisory) to provide coordination between the users. Apron control allocates aircraft parking stands (gates) and communicates this information to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Index Of Aviation Articles
Aviation is the design, development, production, operation, and use of aircraft, especially heavier-than-air aircraft. Articles related to aviation include: A Aviation accidents and incidents – Above Mean Sea Level (AMSL) – ADF – Accessory drive – Advance airfield – Advanced air mobility – Advanced technology engine – Adverse yaw – Aerial ramming – Aerial reconnaissance – Aerobatics – Aerodrome – Aerodrome mapping database (AMDB) – Aerodynamics – Aerofoil – Aerodrome beacon – Aeronautical Information Manual (AIM) – Aeronautical chart – Aeronautical Message Handling System – Aeronautical phraseology – Aeronautics – Aeronaval – Aerospace – Aerospace engineering – Afterburner – Agile Combat Employment (ACE) – Aileron – Air charter – Air defense identification zone (ADIZ) – Air freight terminal – Air traffic flow management – Air-augmented rocket – Airband – Airbase (AFB) – Airborne colli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airplane
An airplane (American English), or aeroplane (Commonwealth English), informally plane, is a fixed-wing aircraft that is propelled forward by thrust from a jet engine, Propeller (aircraft), propeller, or rocket engine. Airplanes come in a variety of sizes, shapes, and wing configurations. The broad spectrum of uses for airplanes includes recreation, air transportation, transportation of goods and people, military aviation, military, and Experimental aircraft, research. Worldwide, commercial aviation transports more than four billion passengers annually on airliners and transports more than 200 billion tonne-kilometersMeasured in RTKs—an RTK is one tonne of revenue freight carried one kilometer. of cargo annually, which is less than 1% of the world's cargo movement. Most airplanes are flown by a pilot on board the aircraft, but some are designed to be unmanned aerial vehicle, remotely or computer-controlled such as drones. The Wright brothers invented and flew the Wright Flyer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operational Readiness Platform
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 maintain a QRA, either full-time or part-time. Operation QRA in the United Kingdom There are two QRA stations in the United Kingdom, one at RAF Coningsby in the east of England, and the other at RAF Lossiemouth in Scotland. Pilots and engineers on QRA duty are at immediate readiness twenty-four hours a day. They are 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parking Lot
A parking lot or car park (British English), also known as a car lot, is a cleared area intended for parking vehicles. The term usually refers to an area dedicated only for parking, with a durable or semi-durable surface. In most jurisdictions where cars are the dominant mode of transportation, parking lots are a major feature of cities and suburban areas. Shopping malls, sports stadiums, and other similar venues often have immense parking lots. (See also: multistorey car park) Parking lots tend to be sources of water pollution because of their extensive impervious surfaces, and because most have limited or no facilities to control runoff. Many areas today also require minimum landscaping in parking lots to provide shade and help mitigate the extent to which their paved surfaces contribute to heat islands. Many municipalities require a minimum numbers of parking spaces for buildings such as stores (by floor area) and apartment complexes (by number of bedrooms). In th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Truck
A truck or lorry is a motor vehicle designed to transport freight, carry specialized payloads, or perform other utilitarian work. Trucks vary greatly in size, power, and configuration, but the vast majority feature body-on-frame construction, with a cabin that is independent of the payload portion of the vehicle. Smaller varieties may be mechanically similar to some automobiles. Commercial trucks can be very large and powerful and may be configured to be mounted with specialized equipment, such as in the case of refuse trucks, fire trucks, concrete mixers, and suction excavators. In American English, a commercial vehicle without a trailer or other articulation is formally a "straight truck" while one designed specifically to pull a trailer is not a truck but a " tractor". The majority of trucks currently in use are powered by diesel engines, although small- to medium-size trucks with gasoline engines exist in North America. Electrically powered trucks are more popu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tank
A tank is an armoured fighting vehicle intended as a primary offensive weapon in front-line ground combat. Tank designs are a balance of heavy firepower, strong armour, and battlefield mobility provided by tracks and a powerful engine; their main armament is often mounted within a turret. They are a mainstay of modern 20th and 21st century ground forces and a key part of combined arms combat. Modern tanks are versatile mobile land weapons platforms whose main armament is a large- calibre tank gun mounted in a rotating gun turret, supplemented by machine guns or other ranged weapons such as anti-tank guided missiles or rocket launchers. They have heavy vehicle armour which provides protection for the crew, the vehicle's munition storage, fuel tank and propulsion systems. The use of tracks rather than wheels provides improved operational mobility which allows the tank to overcome rugged terrain and adverse conditions such as mud and ice/snow better than wheele ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macadam
Macadam is a type of road construction pioneered by Scottish engineer John Loudon McAdam , in which crushed stone is placed in shallow, convex layers and compacted thoroughly. A binding layer of stone dust (crushed stone from the original material) may form; it may also, after rolling, be covered with a cement or bituminous binder to keep dust and stones together. The method simplified what had been considered state-of-the-art at that point. Predecessors Pierre-Marie-Jérôme Trésaguet Pierre-Marie-Jérôme Trésaguet is sometimes considered the first person to bring post-Roman science to road building. A Frenchman from an engineering family, he worked paving roads in Paris from 1757 to 1764. As chief engineer of road construction of Limoges, he had opportunity to develop a better and cheaper method of road construction. In 1775, Tresaguet became engineer-general and presented his answer for road improvement in France, which soon became standard practice there. Paperback ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asphalt Concrete
Asphalt concrete (commonly called asphalt, blacktop, or pavement in North America, and Tarmacadam, tarmac or bitumen macadam in the United Kingdom and the Republic of Ireland) is a composite material commonly used to surface road surface, roads, parking lots, airports, and the core of embankment dams. Asphalt mixtures have been used in pavement construction since the nineteenth century. It consists of Construction aggregate, mineral aggregate Binder (material), bound together with bitumen (a substance also independently known as asphalt, Pitch (resin), pitch, or tar), laid in layers, and compacted. The American English terms ''asphalt'' (or ''asphaltic'') ''concrete'', ''bituminous asphalt concrete'', and ''bituminous mixture'' are typically used only in engineering and construction documents, which define concrete as any composite material composed of mineral aggregate adhered with a binder. The abbreviation, ''AC'', is sometimes used for ''asphalt concrete'' but can also denot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pavers (flooring)
A paver is a paving stone, sett, tile, brick or brick-like piece of concrete commonly used as exterior flooring. They are generally placed on top of a foundation which is made of layers of compacted stone and sand. The pavers are placed in the desired pattern and the space between pavers that is created with the integrated spacer bar is then filled with concrete sand or a polymeric sand. No actual adhesive or retaining method is used other than the weight of the paver itself except edging. Pavers can be used to make roads, driveways, patios, walkways and other outdoor platforms. In a factory, concrete pavers are made with a mixture of sand, stone, cement and iron oxide pigments in a mold and then cured prior to packaging. Block paving Block paving, also known as brick paving, is a commonly used decorative method of creating a pavement or hardstanding. The main benefit of bricks over other materials is that individual bricks can later be lifted up and replaced. This allows for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
