Definition
A published instrument approach procedure that requires both a VOR (VHF Omnidirectional Range) station for course guidance and DME (Distance Measuring Equipment) for distance information from a specified ground station. The pilot tracks a VOR radial inbound to the airport while using DME readings to identify fixes, step-down points, and the missed approach point.
Plain English
An instrument approach where the pilot follows a radio beam from a ground station for direction, and uses a separate distance signal to know how far they are from that station. Both pieces of information are required to fly the approach.
Context Anchor
Seen on instrument approach charts and in instrument clearances, such as when a pilot is cleared to fly a specific VOR/DME approach to an airport or runway.
Derivation
Approach comes from older French and Latin roots meaning “to come nearer.” In aviation, the word has a more exact meaning: not just getting closer to an airport, but following a published method for arriving safely.
Why Pilots Care
Provides a usable approach at many airports that lack an ILS, allowing safe descent in low visibility when the facility is on the field or nearby.
Intuition Check
Do not read “approach” here as simply flying toward the airport. A VOR/DME approach is a published procedure with required courses, distances, altitudes, and minimums.
Example Sentence 1
With the ILS out of service, the crew briefed the VOR/DME approach to Runway 27 and confirmed the DME was receiving the correct station.
Example Sentence 2
On the VOR/DME approach the crew crossed the 5-mile fix and began their descent to the minimum descent altitude.