Plain English Meaning

An RNAV approach that gives the pilot a left/right course and a stable up/down glidepath down to a published decision altitude, instead of stepping down level by level.

Full Definition

A type of RNAV (area navigation) instrument approach that provides both lateral course guidance and vertical path guidance to a Decision Altitude (DA). The lateral guidance comes from GPS or another approved RNAV source, and the vertical guidance comes from either barometric altimetry (Baro-VNAV) or from a satellite-based such as . are lower than -only but generally higher than .