Plain English Meaning

An approach that gives you a left-right needle and an up-down needle, like an ILS, but the left-right path is not lined up with the runway. You follow it down to a point where you can see the runway, then maneuver visually to land.

Full Definition

An instrument approach procedure that uses a Localizer-Type Directional Aid (LDA) for lateral guidance combined with an electronic glideslope for vertical guidance. The LDA provides course guidance comparable in accuracy to a localizer, but its course is not aligned with the runway centerline (typically offset by more than 3 degrees), so the approach is not classified as a even though it provides lateral and vertical electronic guidance.