DME
A radio system that tells an aircraft its slant distance from a ground beacon.
Also written
distance measuring equipment
The aircraft interrogates the ground station and times the reply. Paired with a VOR or an ILS, DME turns a bearing or a course into a position, which is what makes "10 DME" a usable reporting point.
Nearby in Aviation
- displaced threshold — A runway threshold moved down the paved surface, so the pavement before it may be taxied on but not landed on.
- diversion — A flight that lands somewhere other than its planned destination.
- ETOPS — The approval that allows a twin-engined airliner to fly a route far from any suitable diversion airport.
- ferry flight — A flight with no revenue payload, flown to reposition an aircraft.