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Topic: Instrument Landing System

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	Instrument Landing System - Wikipedia, the free encyclopedia
		The Instrument Landing System (ILS) is an instrument approach system which provides precise guidance to an aircraft approaching a runway and in the case of one type of Category III approach, it also provides guidance along the runway surface.
		The approach light system (abbreviated ALS) assists the pilot in transitioning from instrument to visual flight, and to align the aircraft visually with the runway centreline.
		The Transponder Landing System (TLS) is another alternative to an ILS that can be used where a conventional ILS will not work or is not cost-effective.
	en.wikipedia.org /wiki/Instrument_Landing_System (1828 words)

	Microwave landing system - Wikipedia, the free encyclopedia
		The NASA 737 research aircraft on the Wallops runway in 1987 with the Microwave Landing System equipment in the foreground.
		The Microwave Landing System (MLS) is an all-weather, precision landing system originally intended to replace or supplement the Instrument Landing System (ILS).
		Similar to other precision landing systems, lateral and vertical guidance may be displayed on conventional course deviation indicators or incorporated into multipurpose cockpit displays.
	en.wikipedia.org /wiki/Microwave_Landing_System (1856 words)

	Avionics - Wikipedia, the free encyclopedia
		Systems that allow the aircraft to fly safely or have direct control over the aircraft are all directly controlled by the pilot.
		Weather systems such as weather radar and lightning detectors are especially important for aircraft flying at night or in Instrument meteorological conditions, where it is not possible for pilots to see the weather ahead.
		Combined with displays and flight control systems, these three core systems allow all the aircraft systems (not just avionics) to have their data compiled and manipulated to make it easier to maintain, easier to fly and safer.
	en.wikipedia.org /wiki/Avionics (2839 words)

	ILS (Instrument Landing System)
		Instrument landing system (ILS) facilities are a highly accurate and dependable means of navigating to the runway in IFR conditions.
		The localizer is a VHF radio transmitter and antenna system using the same general range as VOR transmitters (between 108.10 MHz and 111.95 MHz).
		The apparent sensitivity of the instrument increases as the aircraft nears the runway.
	www.allstar.fiu.edu /aero/ILS.htm (2872 words)

	Transponder Landing System
		This system is the Transponder Landing System, developed by Advanced Navigation and Positioning Corp. of Hood River, Ore. The concept is simple, the ground installation easy, and the potential applications are endless.
		Systems have been installed in Madras Ore., (south of the ANPC headquarters in Hood River) and at Watertown, Wis., where the EAA dignitaries can see the system in operation.
		The localizer and glideslope angle of arrival AOA sensors are used to define the flightpath from the transponder system as it nears the runway.
	www.gaavionics.com /tls.htm (1817 words)

	Highbeam Encyclopedia - Search Results for Landing
		Angels Landing a hiker's paradise: The trek, however, is not for those afraid of heights
		The application of imaging sensors to aircraft landings in adverse weather.
		The landing phase of a jump strategies to minimize injuries:"what goes up, must come down," according to the old saying.
	www.encyclopedia.com /SearchResults.aspx?Q=Landing&StartAt=11 (764 words)

	History of Aircraft Landing Aids
		But near the landing point, the space between the beams was extremely narrow, and it was often easy for the pilot to miss the exact centerpoint that he had to hit for landing.
		The first landing of a scheduled U.S. passenger airliner using ILS was on January 26, 1938, as a Pennsylvania-Central Airlines Boeing 247-D flew from Washington, D.C., to Pittsburgh and landed in a snowstorm using only the ILS system.
		Helicopters have used visual landing procedures for most of their history, and on June 12, 1987, the FAA opened its national concepts development and demonstration heliport.
	www.centennialofflight.gov /essay/Government_Role/landing_nav/POL14.htm (1141 words)

	instrument-landing system - HighBeam Encyclopedia (Site not responding. Last check: 2007-11-01)
		The pilot flies his aircraft along a course delineated by the intersection of two radio beams—the localizer beam for guidance in the horizontal plane and the glide-slope beam for guidance in the vertical plane.
		Limitations inherent in the system prevent it from being used safely in locations where the land beyond the approach end of the runway is not level.
		Radio marker beacons are also installed at several locations along the approach path to tell the pilot on the landing approach how far he is from the end of the runway.
	www.encyclopedia.com /doc/1E1-instrm-la.html (426 words)

	Dictionary : Instrument_Landing_System
		Ground-based components and instrument indications of an Instrument Landing System.
		The Instrument Landing System (ILS) is a landing navigation system that is used only within a short distance from the airport.
		For instance, it might tell the pilot that the plane's landing gear should be lowered.
	www.centennialofflight.gov /essay/Dictionary/ILS/DI87.htm (306 words)

	The Hindu : National : Instrument landing system upgraded at Delhi
		The new system would enable operations in a visibility range of 50 to 200 metres as against the present CAT-III A which caters to the range of 200 to 400 metres.
		The system provides a controller display at the control tower wherein the positions of vehicles in the manoeuvring area aredisplayed with the help of a transponder mounted on vehicles.
		The whole system has been checked in actual operating environment with the help of an aircraft and vehicles for its adequacy during a trial conducted on December 20 where AAI representatives and the Director General of Civil Aviation (DGCA) were present.
	www.hindu.com /2005/12/27/stories/2005122701031300.htm (477 words)

	Instrument landing (Dr Peter B Ladkin)
		There are three categories of Instrument Landing System (ILS) approaches, Cat I, II and III, and Cat III is further subdivided into A, B, and C. The categories are differentiated according to the minimum weather conditions required for landing.
		In order to land legally for most Cat I Instrument Landing System approaches, besides the usual visibility conditions, some part of the runway, its lighting or its environment must be visible when you're roughly 200 feet above the ground (and therefore a few more hundred feet from touchdown).
		It is possible that the landing described was made under Cat IIIA, in which case use of some automated systems is mandatory, and hand-flying is not an option.
	yarchive.net /air/airliners/instrument_landing.html (348 words)

	ILS Basics (Site not responding. Last check: 2007-11-01)
		Up to now, your instrument approach experience has allowed you to land in weather conditions as adverse as an overcast ceiling of 400 ft. and visibility as low as one-half mile.
		You might be surprised to learn that the Instrument Landing System pre-dated the invention and deployment of the VOR system.
		Test installations of VOR systems in the late 1940s quickly showed their usefulness and by the early 1950s wide-spread installation of these systems was a high priority for the FAA, then known as the CAA.
	www.navfltsm.addr.com /ils.htm (2715 words)

	Instrument Landing System (Site not responding. Last check: 2007-11-01)
		The glide slope transmitter is located between 750 feet and 1,250 feet from the approach end of the runway (down the runway) and offset 250 to 650 feet from the runway centerline.
		Pilots must be aware of the vertical height between the aircraft's glide slope antenna and the main gear in the landing configuration and, at the DH, plan to adjust the descent angle accordingly if the published TCH indicates the wheel crossing height over the runway threshold may not be satisfactory.
		All pilots should be aware that disturbances to ILS localizer and glide slope courses may occur when surface vehicles or aircraft are operated near the localizer or glide slope antennas.
	home.netvista.net /~hpb/ils.html (1915 words)

	cbs2.com - Landing System Failures Puzzle LAX Officials
		In some cases when the instrument landing system isn't working, pilots can land by relying on their own vision, FAA spokesman Ian Gregor said.
		The malfunctioning system is one of eight localizers placed at each end of the airport's four parallel runways, one of which is closed for construction.
		On July 26, a system designed to alert controllers at the airport tower to potential collisions on the ground was partially disabled minutes before a turboprop plane narrowly missed a jet that had strayed onto its runway.
	cbs2.com /topstories/local_story_228000403.html (523 words)

	Navaids
		The term ILS is the acronym of Instrumen Landing System.
		ILS is a terminal navaid which provides informations to the pilot of an aircraft, in cooperation with the respectives aircraft equipments, for a precision approach and landing in the airport in which is available this navaid.
		The system reliability up to the equipments reliability, the installation quality and the enviromental conditions (mountains, buildings, climatologic conditions.For this reason there is a theoritical study all the above conditions, which must not change after the installation.
	www.hcaa-eleng.gr /en/systems/navaids_en.html (664 words)

	Colorado Springs Airport - Instrument Landing System- Runway 17L/35R
		The project is to implement a CAT II Instrument Landing System (ILS) for the south end of Runway 17L/35R.
		An ILS is an approach-and-landing aid system designed to identify an approach path for alignment and descent of aircraft making landings.
		Currently, the airport has two ILS approaches allowing landings from the north using Runway 17L and the south using Runway 35L during instrument flight rule conditions (low visibility).
	www.springsgov.com /AirportPage.asp?PageID=5467 (77 words)

	[No title] (Site not responding. Last check: 2007-11-01)
		Award the purchase of a Mark 20A Instrument Landing System, as a sole source purchase, to Airsys ATM, Inc. for the total cost of $724,284, including tax, and authorize the Director of General Services to execute the purchase order.
		The instrument landing system assists aircraft in landing during inclement weather when visibility is poor.
		The General Services Department/Purchasing Division has determined that the required Mark 20A Instrument Landing System can only be supplied by the original equipment manufacturer, Airsys ATM, Inc. at a total cost of $724,284, including tax.
	www.sanjoseca.gov /cty_clk/4_3_01docs/8.1.htm (346 words)

	Instrument Landing System (Site not responding. Last check: 2007-11-01)
		This system helps aircraft land and is used at all times, but mostly under reduced visibility conditions.
		In nearly 60 years of use ILS systems were never found at fault in an airplane Crash.
		This flawless record is a direct result of the training given to Navaid technicians.
	ca.geocities.com /bandetcaroly/firstw.htm (301 words)

	CHAPTER 9 AUTOMATIC CARRIER LANDING SYSTEM
		landing of the aircraft on an aircraft carrier in rough
		Landing an aircraft on a stationary land airstrip
		system is located on the carrier and uses two antennas.
	www.tpub.com /content/aviation/14030/css/14030_205.htm (265 words)

	SAAB Trainers: Safir, SAAB 105, & Supporter
		The SAAB 105 has tricycle landing gear, all with single wheels, the nose gear retracting forward and the main gear tucking into the fuselage.
		There was talk of upgrading the archaic and increasingly decrepit cockpit instrument system to feature two multifunction displays (MFDs), but it is unclear if this idea ever got out of the talk stage.
		The tail arrangement was conventional in appearance, though originally all three tail surfaces had been "all moving"; the all-moving tailfin was later abandoned in favor of a fixed tailfin with rudder.
	www.vectorsite.net /avsa105.html (4275 words)

	Citebase - Terrain modelling of glideslope for instrument landing system
		Terrain modelling of glideslope for instrument landing system
		The paper makes a contribution to the evaluation of irregularities introduced in electronically defined glideslopes of UHF instrument landing systems (ILS) by the unevenness of the terrain around the glideslope antenna.
		Various methods of physical and geometric optics have been applied in recent years to model and estimate the glideslope aberration at given locations prior to actual installation.
	citebase.eprints.org /cgi-bin/citations?id=oai:iiscePrints.OAI2:1099 (185 words)

	instrument-landing system
		air traffic control - air traffic control, the system by which airplanes are safely routed into and out of major...
		ILAS - ILAS, instrument low-approach system: see instrument-landing system.
		air navigation: Aircraft Instruments - Aircraft Instruments Light aircraft, flown by pilotage, typically have a simple set of navigational...
	www.factmonster.com /ce6/sci/A0825296.html (349 words)

	Citebase - Microwave Landing System-A Favoured Alternative to Current ILS
		While this system has served aviation well during this period of rapidly growing aircraft traffic, speeds and variety, its limitations have steadily been coming to the forefront.
		Among its chief drawbacks in the present form are (i) restriction of flight control manoeuverability, (ii) limited landing traffic rates, and (iii) special terrain and siting requirements.
		After evaluating the various systems proposed by different countries, IC A 0 has accepted the Time Reference Scanning Beam Microwave Landing System (TRSB-MLS) for world-wide use.
	citebase.eprints.org /cgi-bin/citations?id=oai:iiscePrints.OAI2:1066 (262 words)

	Instrument Landing System (Site not responding. Last check: 2007-11-01)
		Sanford, Fla., January, 1999 – Orlando Sanford Airport will break ground on a new instrument landing system (ILS), during a special ceremony January 26, 1999.
		The ILS provides navigational assistance for aircraft landing on the Airport’s main runway, 27R, during inclement weather.
		Commissioned for operation in spring of 1999, Hypower, Inc. of Orlando is performing the installation in accordance with Federal Aviation Administration standards.
	www.orlandosanfordairport.com /documents/press_releases/ils.htm (64 words)

	AllRefer.com - instrument-landing system, Instrument (Aviation, Instruments Etc.) - Encyclopedia
		You are here : AllRefer.com > Reference > Encyclopedia > Aviation, Instruments Etc. > instrument-landing system
		instrument-landing system (ILS), ground-based radio system designed to provide an airplane pilot with precise guidance for the final approach in landing.
		The pilot flies his aircraft along a course delineated by the intersection of two radio beams : the localizer beam for guidance in the horizontal plane and the glide-slope beam for guidance in the vertical plane.
	reference.allrefer.com /encyclopedia/I/instrm-la.html (370 words)

	Modeling of Instrument Landing System (ILS) Localizer Signal on Runway 25L at Los Angeles International Airport ... (Site not responding. Last check: 2007-11-01)
		Modeling of Instrument Landing System (ILS) Localizer Signal on Runway 25L at Los Angeles International Airport (ResearchIndex)
		Modeling of Instrument Landing System (ILS) Localizer Signal on Runway 25L at Los Angeles International Airport
		1 Improvement of Automatic Landing Through the Use o f a Space..
	citeseer.ist.psu.edu /99682.html (262 words)

	48180, Instrument Landing System (ILS) ASII (Site not responding. Last check: 2007-11-01)
		This course provides training for technicians on the Airport Systems International, Incorporated 1100 Series ILS.
		Lectures include the 1100 Localizer, 1110 Glideslope, and 1130 Marker Beacon.
		Note: If a prerequisite is not linked, then the prerequisite is an inactive or cancelled course.
	www.academy.jccbi.gov /cgi/course.cgi?cn=48180&INDEX=AF (60 words)

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