Where are all the elements of an ILS positioned?
ILS component placement: X-Plane requires all ILS components to be placed in their correct, real-world locations. The localizer aerial (image on the left) is positioned beyond the far end of the runway it serves, pointing back down the runway towards approaching aeroplanes. This ensures that an aeroplane can have localizer guidance on the final stages of its flare to land (after it has crossed the runway threshold, or as it begins its missed approach. The localizer is almost always perfectly aligned with the runway it serves … but sometimes they are slightly offset, usually to provide terrain clearance on the approach. If so, the localizer position will be moved so that it still points across the touch down zone of the runway. You can see an example of this at KBOS. The glideslope aerial is positioned to one side of the touch down zone, usually perpendicular to the touch down zone markings on the runway, close to the VASI / PAPI location. It operates on a frequency paired to the loca
