instrument runway
1instrument runway/instrument approach runway — A runway equipped with visual and electronic navigational aids for which a precision or a nonprecision approach with straight in landing minimums has been approved. There may be more than one instrument runway on an airfield. The various types of …
2precision instrument runway — A runway having an operative nonvisual precision approach aid (i.e., instrument landing system) specially marked with nonprecision instrument runway indications along with a touchdown zone, fixed distance markers, and side strips. The normal… …
3nonprecision instrument runway — A runway having an existing instrument approach procedure utilizing air navigation facilities with only horizontal guidance, for which a straight in nonprecision instrument approach procedure has been approved. The normal markings for such… …
4runway marking — There are three types of markings on civil airfields: visual, nonprecision instrument, and precision instrument. Military airfields may use abbreviated markings in some cases. The basic markings on runways used for operations under VFR (visual… …
5Instrument flight rules — (IFR) are a set of regulations and procedures for flying aircraft whereby navigation and obstacle clearance is maintained with reference to aircraft instruments only , while separation from other aircraft is provided by Air Traffic Control. In… …
6Runway visual range — (RVR) is a term used in aviation meteorology to define the distance over which a pilot of an aircraft on the centreline of the runway can see the runway surface markings delineating the runway or identifying its centre line. RVR is normally… …
7Runway edge lights — are used to outline the edges of runways during periods of darkness or restricted visibility conditions. These light systems are classified according to the intensity they are capable of producing: High Intensity Runway Lights (HIRL) Medium… …
8runway-edge light system — Runway edge lights are used to outline the edges of runways during periods of darkness or restricted visibility conditions. The runway edge lights are white, except on instrument runways where yellow replaces white on the last 2000 ft, or half… …
9Instrument landing system — The Instrument Landing System (ILS) is a ground based instrument approach system that provides precision guidance to an aircraft approaching a runway, using a combination of radio signals and, in many cases, high intensity lighting arrays to… …
10Instrument approach — Terminal procedures for an ILS approach in the United States. (The disclaimers shown in red in the illustration do not appear on the original approach plate.) For aircraft operating under instrument flight rules (IFR), an instrument approach or… …
