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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.
Harmonisation between PAPIs and an ILS system must take into account the distance between eye height and ILS receiver height for various aircraft. [1]: 8–33 For a typical 3 degree approach slope, PAPI lights should be angled as follows: 3°30', 3°10', 2°50', 2°30' (3.50°, 3.17°, 2.83°, 2.50°). [1]: 8–36
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]
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 ...
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 ...
Autoland systems were designed to make landing possible in visibility too poor to permit any form of visual landing, although they can be used at any level of visibility. . They are usually used when visibility is less than 600 meters runway visual range and/or in adverse weather conditions, although limitations do apply for most aircraft—for example, for a Boeing 747-400 the limitations are ...
Sold for: $1.1 million. There were only 200 of these made, and it's often referred to as the Holy Grail of baseball cards. Apparently, these cards were produced by the American Tobacco Company ...
The entire system can be transported in a standard 20' Conex container which can also be used as the center of operations, or on a single 463L master pallet. The system can be transported by truck, ship, or any suitable transport aircraft such as a C-130 or C-17 , and can also be airlifted by helicopter.