Aeronautical Terms beginning with L

LAAS

Local Area Augmentation System

Lateral Navigation (LNAV)

The function of RNAV systems that computes, displays, and provides lateral guidance to a profile or path. Sometimes referred to as managed navigation.

LNAV

Lateral Navigation

LOA

Letter of Acceptance

Long-Range Navigation System (LRNS)

n electronic navigation unit that is approved for use under instrument flight rules (IFR) as a primary means of navigation, and has at least one source of navigational input, such as inertial navigation system (INS) and/or GPS.

LP

Localizer Performance without Vertical Guidance

LPV

Localizer Performance with Vertical Guidance

LRN

Long-Range Navigation

LRNS

Long-Range Navigation System