System for airplane landing in which the pilot is guided by radio beams.
A precise landing aid consisting of several components giving the pilot vertical and horizontal electronic guidance. Elements usually include: 1. an outer marker, a radio beam 4 to 6 miles from the touchdown point where the electronic signal begins; 2. an approach lighting system at the runway end; 3. a localizer radio beam which provides the horizontal guide; and 4. a glide slope which provides vertical guidance on the angle of descent for landing.
Although it sounds pretty generic, an ILS is a specific and accurate set of equipment used to provide a very accurate instrument approach. It provides both lateral (left/right) guidance through a localizer and vertical (up/down) guidance through a glideslope, all of which can be used completely blind outside the cockpit. Even fairly unsophisticated aircraft can use an ILS to get within 200' of most airports and this is the system that specially equipped and trained transport aircraft and pilots can use to land completely blind.
Provides radio-based horizontal and vertical guidance to an aircraft approaching a runway. It is used to guide landing aircraft during conditions of low visibility.
A system that provides the lateral, longitudinal, and vertical guidance necessary for a landing.
Ground-based precision approach system which provides precise azimuth and glide slope information for display on aircraft flight instruments; the microwave landing system (MLS) and GPS (augmented) can provide this also
A navigational aid used to facilitate the landing of an aircraft at an airport in instrument weather, i.e. low visibility.
A radionavigation precision-approach system that provides aircraft with horizontal and vertical guidance just before and during landing and that, at certain fixed points, indicates the distance to the reference point of landing. abbreviation: ILS Fr: système d'atterrissage aux instruments
An electronic system which helps to guide pilots to runways for landing during periods of limited visibility or adverse weather.
(Abbreviated ILS.) A navigational aid used to facilitate the landing of an aircraft in instrument weather at an airport. The instrument landing system consists of two parts: 1) a directional guide to bring the plane to the correct runway; and 2) a glide path to bring the plane down at the correct glide angle or slope to touch the runway at the correct point. Current safety requirements demand that visual contact with the ground be possible within the final several hundred feet of descent.
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.