Plain English Meaning

An approach that gives you a narrow course to follow toward the airport, plus a continuous readout of how far you are from a fixed point on the field. The course is not lined up straight with the runway, so you fly the course down, then maneuver to land.

Full Definition

An instrument approach that uses a Localizer-Type Directional Aid (LDA) for lateral guidance combined with Distance Measuring Equipment (DME) to provide the pilot with slant-range distance information to a specific reference point on the airport. The LDA provides course guidance similar to an localizer but is not aligned within of the runway, and DME replaces the need for or derived from other to approach segments and the .