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In aviation, the instrument landing system (ILS) is a precision radio navigation system that provides short-range guidance to aircraft to allow them to approach a runway at night or in bad weather. In its original form, it allows an aircraft to approach until it is 200 feet (61 m) over the ground, within a 1 ⁄ 2 mile (800 m) of the runway.
The S-Series of ILS specifications is a common denominator for a set of specifications associated to different integrated logistics support aspects. [1] Originally developed by AECMA (French acronym for the Association Européenne des Constructeurs de Matériel Aeronautique, later ASD), the S-Series suite of ILS specifications is managed currently jointly by multinational teams from the ...
It is typically located about 1 NM (1.85 km) inside the point where the glideslope intercepts the intermediate altitude and transmits a 400 Hz tone signal on a low-powered (3 watts), 75 MHz carrier signal. Its antenna is highly directional, and is pointed straight up. The valid signal area is a 2,400 ft (730 m) × 4,200 ft (1,280 m) ellipse (as ...
Honeywell Primus is a range of Electronic Flight Instrument System (EFIS) glass cockpits manufactured by Honeywell Aerospace. Each system is composed of multiple display units used as primary flight display and multi-function display.
Inventory Locator Service, LLC (ILS) is an American company that started the first e-Marketplace for aviation, marine, and defense industries.ILS has its headquarters in Memphis, Tennessee, United States of America; with relationships globally, especially in North America, through its parent company CAMP Systems, Inc., a subsidiary of Hearst Corporation. [1]
TLS uses the existing Mode 3/A/C/S transponder equipment to determine the aircraft's position. It then transmits the correct signal on the same frequencies used for the current ILS system. All the pilot is required to do is wait for clearance from ATC for the TLS approach and then tune an ILS receiver to the appropriate frequency.
An "approach plate" depicting an instrument approach procedure for an ILS approach to Tacoma Narrows Airport in the United StatesIn aviation, an instrument approach or instrument approach procedure (IAP) is a series of predetermined maneuvers for the orderly transfer of an aircraft operating under instrument flight rules from the beginning of the initial approach to a landing, or to a point ...
FIG 1-1-8: Coverage volume of the azimuth station FIG 1-1-9: Coverage volumes of the elevation station The azimuth station transmits MLS angle and data on one of 200 channels within the frequency range of 5031 to 5090.7 MHz and is normally located about 1,000 feet (300 m) beyond the stop end of the runway, but there is considerable flexibility ...