localizer

The localizer antenna array sits beyond the far end of the runway and radiates two overlapping lobes; the aircraft's receiver reads the difference and shows how far left or right of centreline it is. A localizer-only approach, without the glideslope, gives lateral guidance and a stepped descent.

Nearby in Aviation

• line up and wait — A clearance to enter the runway and hold in the takeoff position without a takeoff clearance.
• livery — The paint scheme and markings an aircraft wears.
• METAR — The routine coded weather observation issued for an aerodrome, normally every half hour or hour.
• missed approach — The published procedure flown when an approach cannot be continued to a landing.