A runway (RWY) is a strip of land on an airport, on which aircraft can take off and land. Chennai International Airport ( சென்னை பன்னாட்டு விமான நிலையம்) is located in Meenambakkam, south of India, officially the Republic of India (भारत गणराज्य inc-Latn Bhārat Gaṇarājya; see also other Indian languages) is a country An airport is a location where Aircraft such as airplanes, Helicopters and blimps take off and land Takeoff is the phase of Flight in which an Aircraft goes through a transition from moving along the ground ( Taxiing) to flying in the air usually Landing is the last part of a Flight, where a flying Animal, Aircraft, or Spacecraft returns to the ground Runways may be a man-made surface (often asphalt, concrete, or a mixture of both) or a natural surface (grass, dirt, or gravel). Asphalt concrete, normally known simply as Asphalt, is a Composite material commonly used for construction of pavement, Highways and Concrete is a construction material composed of Cement (commonly Portland cement) as well as other cementitious materials such as Fly ash and Slag Sod or turf is grass and the part of the Soil beneath it held together by the Roots or a piece of this material Soil, often typeset as SOiL, is a four piece rock band from Chicago Illinois United States founded by Shaun Glass Tom Schofield Tim King and Adam Zadel Gravel is rock that is of a specific Particle size range In Geology, gravel is any loose rock that is larger than two millimeters (2mm
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Orientation and dimensions
Runways are generally numbered according to their magnetic heading (the takeoff direction it is "pointing towards"). In Navigation, a course is the intended path of a vehicle over the surface of the Earth The runway number is the whole number nearest one-tenth the magnetic azimuth of the centerline of the runway, measured clockwise from the magnetic north. Azimuth ( is a mathematical concept defined as the angle usually measured in degrees (° between a reference plane and a point. Each digit is pronounced separately for clarity in radio communications. For example, Runway Three Six would be aligned in roughly a 360 degrees direction (magnetic north), Runway Nine would be used for a runway with a 94 degree-alignment (close to magnetic east), and Runway One Seven for 168 degrees. This article describes the unit of angle For other meanings see Degree. The Earth's North Magnetic Pole is the wandering point on the Earth's surface at which the Earth's magnetic field points vertically downwards (i Each runway can be used in either direction, and hence has two numbers, each 180° apart. Thus, Runway One Zero (100°) becomes Runway Two Eight (280°) when used in the opposite direction and Runway One Eight (180°) becomes Runway Three Six (360°). Runways in North America that lie within the Northern Domestic Airspace are, because of the magnetic north pole, usually numbered according to true north. Canadian airspace is the region of navigable Airspace above the surface of the Earth that falls within a region roughly defined by the Canadian land mass the Canadian The Earth's North Magnetic Pole is the wandering point on the Earth's surface at which the Earth's magnetic field points vertically downwards (i noted by the Chinese Polymath Shen Kuo in the 11th century and possibly the egyptians over 6 millenia ago
In International Civil Aviation Organization (ICAO) and some United States military (such as Edwards Air Force Base) airports, numbers for runways less than 100° include the leading "zero", for example, Runway Zero Two or Runway Zero One Left. The International Civil Aviation Organization ( ICAO) an agency of the United Nations, codifies the principles and techniques of international air navigation The United States Armed Forces are the overall unified military forces of the United States Edwards Air Force Base is a United States Air Force base located on the border of Kern County and Los Angeles County California in the Antelope However in the United States at most civil aviation airports, numbers for runways less than 100° are often given as single digits; for instance, Runway Nine or Runway Four Right. The United States of America —commonly referred to as the Civil aviation is one of two major categories of flying representing all non- Military aviation, both private and commercial This also includes some military airfields such as Cairns Army Airfield. Cairns Army Airfield is a military Airport forming a part of Fort Rucker, in Dale County, Alabama, USA This American anomaly may lead to inconsistencies in conversations between American pilots and controllers in other countries. It is very common in a country such as Canada for a controller to clear an incoming American aircraft to, for example, Runway 04, and the pilot read back the clearance as Runway 4. Users of flight simulation programs may note that those of American origin might apply U. S. usage to airports around the world. For example Runway 05 at Halifax (CYHZ) will appear on the FS program as the single digit 5 rather than 05.
Runway designations do change over time. Because the magnetic poles slowly drift on the Earth's surface, but the runways stay fixed, the magnetic bearing will change. Depending on the airport location and how much drift takes place, it may be necessary over time to change the runway designation. As runways are designated with headings rounded to the nearest 10 degrees, this will affect some runways more than others. For example,if the magnetic heading of a runway is 276 degrees , it would be designated Runway 28. If the magnetic heading changed upwards by 5 degrees, a huge change but the Runway would still be Runway 28. If on the other hand the original magnetic heading was 284 (Runway 28), and the heading increased by only two degrees to 286, the runway should become Runway 29. Because the drift itself is quite slow, runway designation changes are relatively uncommon, and not welcomed, as they do require an accompanying change in a wide range of navigational and descriptive documents. In addition, such changes may also cause confusion at airports which have two runways that are one number apart from each other, such as Runways 7/25 and 8/26 at Denver International Airport. Denver International Airport, often called DIA, is by land size at, the largest international Airport in the United States, and the second largest
If there is more than one runway pointing in the same direction (parallel runways), each runway is identified by appending Left (L), Center (C) and Right (R) to the number — for example, Runways One Five Left (15L), One Five Center (15C), and One Five Right (15R). Runway Zero Two Left (02L) becomes Runway Two Zero Right (20R) when used in the opposite direction (derived from adding 18 to the original number for the 180 degrees when approaching from the opposite direction).
At large airports with more than three parallel runways (for example, at Los Angeles International Airport in Los Angeles, California, Detroit Metropolitan Wayne County Airport in Romulus, Michigan or Hartsfield-Jackson International Airport in Atlanta, Georgia), some runway identifiers are shifted by 10 degrees to avoid the ambiguity that would result with more than three parallel runways. Los Angeles International Airport is the primary Airport serving Los Angeles, California, the second-most populated metropolitan area of Los Angeles (lɑˈsændʒələs los ˈaŋxeles in Spanish) is the largest City in the state of California and the American West Detroit Metropolitan Wayne County Airport, sometimes called Detroit Metropolitan Airport, Detroit Metro Wayne Airport, Metro Airport, or simply Romulus is a city in Wayne County in the US state of Michigan. In Los Angeles, this system results in Runways Six Left, Six Right, Seven Left, and Seven Right, even though all four runways are exactly parallel (approximately 69 degrees). Los Angeles International Airport is the primary Airport serving Los Angeles, California, the second-most populated metropolitan area of
For fixed-wing aircraft it is advantageous to perform take-offs and landings into the wind to reduce takeoff roll and reduce the ground speed needed to attain flying speed. Overview Fixed-wing aircraft range from small training and recreational aircraft to Wide-body aircraft and military cargo aircraft. Larger airports usually have several runways in different directions, so that one can be selected that is most nearly aligned with the wind. Airports with one runway are often constructed to be aligned with the prevailing wind. The prevailing winds are the trends in speed and direction of Wind over a particular point on the Earth 's surface
Runway dimensions vary from as small as 245 m (804 ft) long and 8 m (26 ft) wide in smaller general aviation airports, to 5,500 m (18,045 ft) long and 80 m (262 ft) wide at large international airports built to accommodate large passenger jets. General aviation (abbr GA) is one of two categories of Civil aviation. An international airport is an Airport typically equipped with Customs and Immigration facilities to handle international flights to and from other A jet airliner, sometimes contracted to jetliner, is a passenger Airplane (passenger Aeroplane) that is powered by Jet engines.
Placement and grouping
Two runways pointing in the exact same direction are classed as dual or parallel runways depending on the separation distance. In some countries, flight rules mandate that only one runway may be used at a time under certain conditions (usually adverse weather) if the parallel runways are too close to each other. The weather is a set of all the phenomena occurring in a given Atmosphere at a given Time.
Declared distances
- TORA
- Takeoff Run Available - The length of runway declared available and suitable for the ground run of an airplane taking off. Takeoff is the phase of Flight in which an Aircraft goes through a transition from moving along the ground ( Taxiing) to flying in the air usually
- TODA
- Takeoff Distance Available - The length of the takeoff run available plus the length of the clearway, where provided (the clearway length allowed must lie within the aerodrome or airport boundary. Distance is a numerical description of how far apart objects are According to JAR TODA is the lesser of TORA plus clearway or 1. 5 times TORA).
- ASDA
- Accelerate Stop Distance Available - The length of the takeoff run available plus the length of the stopway, where provided.
- LDA
- Landing Distance Available - The length of runway which is declared available and suitable for the ground run of an aeroplane landing. Landing is the last part of a Flight, where a flying Animal, Aircraft, or Spacecraft returns to the ground
"Sections" of a runway
- The Runway Strip is the cleared, grassy area around the paved runway. It is kept free from any obstacles that might impede flight or ground roll of aircraft, although the grass is not always necessarily in good condition. The grass is often marked with white cones or gables.
- The Runway is the entire paved surface, which typically features threshold markings, numbers, centerlines, and overrun areas at both ends.
- Blast pads, also known as overrun areas or stopways, are often constructed just before the start of a runway where jet blast produced by large planes during the takeoff roll could otherwise erode the ground and eventually damage the runway. Jet blast is the phenomenon of rapid air movement produced by the jet Engines of Aircraft, particularly on or before takeoff Overrun areas are also constructed at the end of runways as emergency space to slowly stop planes that overrun the runway on a landing gone wrong, or to slowly stop a plane on an aborted take-off or a take-off gone wrong. Blast pads are often not as strong as the main paved surface of the runway and are marked with yellow chevrons. Planes are not allowed to taxi, take-off or land on blast pads, except in an emergency.
- Displaced thresholds may be used for taxiing, takeoff, and landing rollout, but not for touchdown. A displaced threshold often exists because obstacles just before the runway, runway strength, or noise restrictions may make the beginning section of runway unsuitable for landings. A displaced threshold is a Runway Threshold located at a point other than the physical beginning or end of the runway It is marked with white paint arrows that lead up to the beginning of the landing portion of the runway.
Runway lighting
History
The first runway lighting appeared in 1930 at Cleveland Municipal Airport (now known as Cleveland Hopkins International Airport) in Cleveland, Ohio. Cleveland Hopkins International Airport is a public Airport located nine miles (14 km) southwest of the Central business district of Cleveland Cleveland is a City in the US state of Ohio and the County seat of Cuyahoga County, the most populous county in the state
Technical specifications
Runway lighting is used at airports which allow night landings. Seen from the air, runway lights form an outline of the runway. A particular runway may have some or all of the following.
- Runway End Identification Lights (REIL) Unidirectional (facing approach direction) or omnidirectional pair of synchronized flashing lights installed at the runway threshold, one on each side. Runway End Identifier Lights (REIL are installed at many Airports to provide rapid and positive identification of the approach end of a particular Runway.
- Runway end lights A pair of four lights on each side of the runway On precision instrument runways, these lights extend along the full width of the runway. These lights show green when viewed by approaching aircraft and red when seen from the runway.
- Runway Edge Lights White elevated run the length of the runway on either side. Runway Edge Lights are used to outline the edges of Runways during periods of darkness or restricted visibility conditions On precision instrument runways, the edge-lighting becomes yellow in the last 2,000 ft (610 m) of the runway. Taxiways are differentiated by being bordered by blue lights, or by having green centre lights, depending on the width of the taxiway, and the complexity of the taxi pattern. A taxiway is a path on an Airport connecting Runways with ramps Hangars terminals and other facilities
- Runway Centerline Lighting System (RCLS) Lights embedded into surface of the runway at 50 ft (15 m) intervals along the runway centerline on some precision instrument runways. White except last 3,000 ft (914 m), alternate white and red for next 2,000 ft (610 m) and red for last 1,000 ft (305 m).
- Touchdown Zone Lights (TDZL) This consists of rows of white light bars (with three in each row) on either side of the centerline over the first 3,000 ft (914 m) (or to the midpoint, whichever is less) of the runway.
- Taxiway Centerline Lead-Off Lights Installed along lead-off markings, alternate green and yellow lights embedded into runway pavement. It starts with green light about runway centerline to the position of first centerline light beyond holding position on taxiway.
- Taxiway Centerline Lead-On Lights Installed same way as Taxiway centerline Lead-Off Lights.
- Land and Hold Short Lights A row of white pulsating lights installed across the runway to indicate hold short position on some runways which are facilitating LAHSO operations. Land and Hold Short Operations (or LAHSO, pronounced "La-So" is an Aeronautical term referring to a situation in which a landing Aircraft is
- Approach Lighting System or ALS, is a lighting system installed on the approach end of an airport runway and consists of a series of lightbars, strobe lights, or a combination of the two that extends outward from the runway end.
According to Transport Canada's regulations, the runway-edge lighting must be visible for at least 2 miles (3 kilometres). Transport Canada is the department within the government of Canada which is responsible for developing Regulations, Policies and services A mile is a unit of Length, usually used to measure Distance, in a number of different systems including Imperial units United States The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand Additionally, a new system of advisory lighting, Runway Status Lights, is currently being tested in the United States. Runway Status Lights (RWSL is a fully automatic advisory safety system as a part of an ongoing effort to explore new technologies to increase safety during airport ground operations The United States of America —commonly referred to as the
The edge lights must be arranged such that:
- the minimum distance between lines is 75 ft (23 m), and maximum is 200 ft (61 m);
- the maximum distance between lights within each line is 200 ft (61 m);
- the minimum length of parallel lines is 1,400 ft (427 m);
- the minimum number of lights in the line is 8. [1]
Control of Lighting System Typically the lights are controlled by a control tower, a Flight Service Station or another designated authority. A control tower, or more specifically an air traffic control tower is the name of the airport building from which the Air traffic control unit controls the movement of aircraft A flight service station ( FSS) is an air traffic facility that provides information and services to aircraft pilots before during and after flights but unlike Some airports/airfields (particularly uncontrolled ones) are equipped with Pilot Controlled Lighting, so that pilots can temporarily turn on the lights when the relevant authority is not available. Pilot Controlled Lighting ( PCL) also known as Aircraft Radio Control of Aerodrome Lighting ( ARCAL) or Pilot Activated Lighting ( PAL This avoids the need for automatic systems or staff to turn the lights on at night or in other low visibility situations. This also avoids the cost of having the lighting system on for extended periods. Smaller airports may not have lighted runways or runway markings. Particularly at private airfields for light planes, there may be nothing more than a windsock beside a landing strip. A windsock or wind cone is a conical Textile Tube designed to indicate Wind direction and relative Wind speed.
Runway markings
There are various runway markings and signs on any given runway. Larger runways have a distance remaining sign (black box with white numbers). This sign uses a single number to indicate the thousands of feet remaining, so 7 will indicate 7,000 ft (2,134 m) remaining. The runway threshold is marked by a line of green lights.
There are three types of runways:
- Visual Runways are used at small airstrips and are usually just a strip of grass, gravel, asphalt or concrete. Although there are usually no markings on a visual runway they may have threshold markings, designators, and centerlines. Additionally, they do not provide an instrument-based landing procedure; pilots must be able to see the runway to use it. Also, radio communication may not be available and pilots must be self-reliant.
- Non-precision instrument runways are often used at small-medium size airports. These runways, depending on the surface, may be marked with threshold markings, designators, centerlines, and sometimes a 1,000 ft (305 m) mark (known as an aiming point, sometimes installed at 1,500 ft (457 m)). They provide horizontal position guidance to planes on instrument approach via Non-directional beacon (NDB), VHF omnidirectional range (VOR), Global Positioning System, etc. A Non-directional beacon ( NDB) is a Radio transmitter at a known location used as an aviation or marine Navigational aid This article is about the radio navigation aid see VOR for other uses Basic concept of GPS operation A GPS receiver calculates its position by carefully timing the signals sent by the constellation of GPS Satellites high above the Earth
- Precision instrument runways, which are found at medium and large size airports, consist of a blast pad/stopway (optional, for airports handling jets), threshold, designator, centerline, aiming point, and 500 ft (152 m), 1,000 ft (305 m)/1,500 ft (457 m), 2,000 ft (610 m), 2,500 ft (762 m), and 3,000 ft (914 m) touchdown zone marks. Precision runways provide both horizontal and vertical guidance for instrument approaches.
National variants
- In Australia, Canada, Japan, the United Kingdom, as well as some other countries all 3-stripe and 2-stripe touchdown zones for precision runways are replaced with one-stripe touchdown zones. For a topic outline on this subject see List of basic Australia topics. Country to "Dominion of Canada" or "Canadian Federation" or anything else please read the Talk Page For a topic outline on this subject see List of basic Japan topics. The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom, the UK or Britain,is a Sovereign state located
- In Australia, precision runways consist of only one 1-stripe touchdown zone, aiming point, and one 1-stripe touchdown zone. Furthermore, all non-precision and visual runways lack an aiming point.
- Some European countries replace the aiming point with a 3-stripe touchdown zone.
- Runways in Norway have yellow markings instead of the usual white ones. Norway ( Norwegian: Norge ( Bokmål) or Noreg ( Nynorsk) officially the Kingdom of Norway, is a Constitutional This also occurs on some airports in Japan. The yellow markings are used to ensure better contrast against snow.
- Runways may have different types on each end. To cut costs, many airports do not install precision guidance equipment on both ends. Runways with one Precision end and any other type of end can install the full set of touchdown zones, even if some are past the midpoint. If a runway has Precision markings on both ends, touchdown zones within 900 ft (274 m) of the midpoint are omitted, to avoid pilot confusion over which end the marking belongs to.
Pavement
The choice of material used to construct the runway depends on the use and the local ground conditions. Generally speaking, for a major airport, where the ground conditions permit, the most satisfactory type of pavement for long-term minimum maintenance is concrete. Although certain airports have used reinforcement in concrete pavements, this is generally found to be unnecessary, with the exception of expansion joints across the runway where a dowel assembly, which permits relative movement of the concrete slabs, is placed in the concrete. expansion joint is an assembly designed to safely absorb the heat-induced expansion and contraction of various construction materials A dowel is a solid cylindrical rod, usually made of Wood, Plastic or Metal. Where it can be anticipated that major settlements of the runway will occur over the years because of unstable ground conditions, it is preferable to install asphaltic concrete surface, as it is easier to patch on a periodic basis. Asphalt ( is a sticky black and highly viscous liquid or semi-solid that is present in most crude Petroleums and in some natural deposits sometimes termed asphaltum For fields with very low traffic of light planes, it is possible to use a sod surface. Sod or turf is grass and the part of the Soil beneath it held together by the Roots or a piece of this material
The development of the pavement design proceeds along a number of paths. Exploratory borings are taken to determine the subgrade condition, and based upon relative bearing capacity of the subgrade, different pavement specifications are established. Typically, for heavy-duty commercial aircraft, the pavement thickness, no matter what the top surface, varies from as little as 10 inches (25 centimetres) to as much as 4 ft (1 m), including subgrade. Inches redirects here To see the Les Savy Fav album see Inches. A centimetre ( American spelling: centimeter, symbol cm) is a unit of Length in the Metric system, equal to one hundredth
Historically, airport pavements have been designed by two methods. The first, Westergaard, is based upon the assumption that the pavement is an elastic plate supported on a heavy fluid base with a uniform reaction coefficient known as the K value. In Mathematics, a coefficient is a Constant multiplicative factor of a certain object Experience has shown that the K values upon which the formula was developed are not applicable for newer aircraft with very large footprint pressures.
The second method is called the California bearing ratio and was developed in the late 1940s. It is an extrapolation of the original test results, which are not applicable to modern aircraft pavements or to modern aircraft landing gear. Some designs were predicated upon melding of these two design theories; they are empirical in nature and are not reliable. Another, more recent, method is an analytical system based on the introduction of vehicle response as an important design parameter. Essentially it takes into account all factors, including the traffic conditions, service life, materials used in the construction, and, especially important, the dynamic response of the vehicles using the landing area.
Because airport pavement construction is so expensive, every effort is made to minimize the stresses imparted to the pavement by aircraft. Manufacturers of the larger planes design landing gear so that the weight of the plane is supported on larger and more numerous tires. Attention is also paid to the characteristics of the landing gear itself, so that adverse effects on the pavement are minimized. However, in the final analysis, if plane weights continue to increase as they have in the past, it will be necessary to provide substantially stronger pavements than those that are generally in use in Europe and the United States. Sometimes it is possible to reinforce a pavement for higher loading by applying an overlay of asphaltic concrete or portland cement concrete that is suitably bonded to the original slab. Portland cement is the most common type of Cement in general usage in many parts of the world as it is a basic ingredient of Concrete, mortar, Stucco
Posttensioning concrete has been developed for the runway surface. This permits the use of thinner pavements and should result in longer concrete pavement life. Because of the susceptibility of thinner pavements to frost heave, this process is generally applicable only where there is no appreciable frost action.
Pavement surface
Runway pavement surface is prepared and maintained to maximise friction for wheel braking. To minimize hydroplaning following heavy rain, the pavement surface is usually grooved so that the surface water film flows into the grooves and the peaks between grooves will still be in contact with the aircraft tires. Hydroplaning or aquaplaning by a Road Vehicle occurs when a layer of Water builds between the Rubber Tires of the vehicle To maintain the macrotexturing built into the runway by the grooves, maintenance crews engage in Airfield rubber removal in order to meet required FAA friction levels. Airfield rubber removal, also known as runway rubber removal is the use of High pressure water, Abrasives, Chemicals and/or other mechanical means
Active runway
The active runway is the runway at an airport that is in current use for takeoffs and landings. An airport is a location where Aircraft such as airplanes, Helicopters and blimps take off and land Takeoff is the phase of Flight in which an Aircraft goes through a transition from moving along the ground ( Taxiing) to flying in the air usually Landing is the last part of a Flight, where a flying Animal, Aircraft, or Spacecraft returns to the ground Since takeoffs and landings are usually done as close to "into the wind" as possible, wind direction generally determines the active runway (or just the active in aviation slang). Wind is the flow of Air or other Gases that compose an Atmosphere (including but not limited to the Earth's) Slang is the use of highly informal Words and expressions that are not considered standard in the speaker's Dialect or Language.
Selection of the active runway, however, depends on a number of factors. At a non-towered airport, pilots usually select the runway most nearly aligned with the wind, but they are not obliged to use that particular runway. A non-towered airport, sometimes referred to as an uncontrolled airport, is an Airport with no operating tower or Air traffic control unit For example, a pilot arriving from the east may elect to land straight in to an east-west runway despite a minor tailwind or significant crosswind, in order to expedite his arrival, although it is recommended to always fly a regular traffic pattern to more safely merge with other aircraft.
At controlled airports, the active is usually determined by a tower supervisor. However, there may be constraints, such as policy from the airport manager (calm wind runway selection, for example, or noise abatement guidelines) that dictate an active runway selection that isn't the one most nearly aligned with the wind.
At major airports with multiple runways, the active could be any of a number of runways. For example, when O'Hare (ORD) is landing on 27R and 32L, departures use 27L and 32R, thus making four active runways. When they're landing on 14R and 22R, departures use 22L and 9L, and occasionally a third arrival runway, 14L, will be employed, bringing the active runway count to five.
At major airports, the active runway is based on existing weather conditions (visibility and ceiling, as well as wind, and runway conditions such as wet/dry or snow covered), efficiency (ORD can land more aircraft on 14R/32L than they can on 9L/27R), traffic demand (when a heavy departure rush is scheduled, a runway configuration that optimizes departures vs arrivals may be desirable), and time of day (ORD is obliged to use runway 9L/27R during the hours of roughly midnight to 6 a. m. due to noise abatement).
Runway Length
Although runway length may be of some academic interest, in terms of usability for air carrier operations, a runway of at least 6,000 ft (1,829 m) in length is usually adequate for aircraft weights below approximately 200,000 pounds (90,718 kilogrammes). Although Runway length may be of some academic interest in terms of usability for Airline operations a runway of at least 6000 ft (1820 m in length is usually adequate for An airline provides air transport services for Passengers or Freight, generally with a recognized operating certificate or license The pound or pound-mass (abbreviation lb, lbm, or sometimes in the United States #) is a unit of Mass Larger aircraft including widebodies (Boeing 747, 767, 777, and 787 ); Airbus A310, A330, A340, A350, and A380; McDonnell-Douglas DC-10 or MD-11; and the Lockheed L1011) will usually require at least 8,000 ft (2,438 m) at sea level and somewhat more at higher altitude airports. wide-body aircraft is a large Airliner with twin aisles and typically a fuselage diameter of 5 to 6 metres (16 to 20 ft The Boeing Company is a major Aerospace and defense corporation originally founded by William E WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Airbus SAS (ˈɛərbʌs in English, Airbus2ogg|/ɛʁbys/]] in French, and /ˈɛːɐbʊs/ in German) is an aircraft manufacturing WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout The Lockheed Corporation (originally Loughead Aircraft Manufacturing Company was an American aerospace company founded in 1912 which merged with Martin Marietta WikipediaWikiProject Aircraft. Please see WikipediaWikiProject Aircraft/page content for recommended layout Altitude is the Elevation of a point or object from a known level or datum (plural data International widebody flights may also have landing requirements of 10,000 ft (3,048 m) or more and takeoff requirements of 13,000 ft (3,962 m)+ ft.
At sea level, 10,000 ft (3,048 m) can be considered an adequate length to accommodate virtually any aircraft. Mean sea level (MSL is the average (mean height of the Sea, with reference to a suitable reference surface For example, at O'Hare International Airport, when landing simultaneously on 22R and 27L or parallel 27R, it is routine for arrivals from the Far East which would normally be vectored for 22R (7,500 ft (2,286 m)) or 27R (8,000 ft (2,438 m)) to request 27L (10,000 ft (3,048 m)). The Far East is a term often used by people in the Western world to refer to the countries of East Asia. It is always accommodated, although occasionally with a delay.
See also
- Engineered materials arrestor system
- Precision Approach Path Indicator
- Visual Approach Slope Indicator
- Aviation
- List of airports
- Airfield rubber removal
- Runway safety area
Notes
References
- United States Areonautical Information Manual - Federal Aviation Administration - published yearly
- United States Airport Facility Directory - Federal Aviation Administration - published every 56 days.
External Links
- [1]] PDF file from the CAA describing airfield markings and lighting standards as well as UK aircraft and helicopter marshalling signals. An Engineered materials arrestor system or Engineered materials arresting system (EMAS is a bed of lightweight crushable Concrete built at the end of a runway The Precision Approach Path Indicator (PAPI is a light system positioned beside the Runway that consists of two three or four boxes of lights that provide a visual indication The Visual Approach Slope Indicator (VASI is a system of Lights on the side of an airport Runway that provides visual descent guidance information during Aviation refers to activities involving man-made flying devices ( Aircraft) including the people organizations and regulatory bodies involved with them List of airports is an organized list of airports Due to the size of the list it has been broken down into Airfield rubber removal, also known as runway rubber removal is the use of High pressure water, Abrasives, Chemicals and/or other mechanical means A Runway safety area (RSA or runway end safety area (RESA is defined as "the surface surrounding the runway prepared or suitable for reducing the risk of damage to airplanes
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