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Terms for subject Aviation (1801 entries)
lateral navigation/vertical navigation A navigation system that presents to the pilot computed vertical guidance referenced to a specified vertical path angle (VPA) nominally 3°. The computer-resolved vertical guidance is based on barometric altitude and is specified as a VPA from reference datum height (RDH)
lateral separation Separation between aircraft at the same altitude expressed in terms of distance or angular displacement between tracks
ldg gr landing gear
ldr leader
lead pursuit attack An attack geometry that will cause the attacker to fly in front of the target
lead turn A turn which is initiated prior to passing the opponents 3/9 line
ldr leader
l left
lethal envelope The envelope within which the parameters can be met for successful employment of a munition by a particular weapons system
level set level set method bonly
level set level set method bonly
lg landing gear
Lib Liberator
l lift
light gun A hand-held directional light signalling device that emits a brilliant, narrow beam of white, green or red light, as selected by the tower controller. The light gun is used as an alternate means of communication for controlling traffic operating in the vicinity of the airport and on the airport movement area.
light icing An atmospheric condition in which the rate of ice accumulation may create a problem if flight is prolonged in this environment for over one hour
light turbulence Turbulence that momentarily causes slight, erratic changes in altitude or attitude (this could be reported as "light turbulence") or turbulence that causes slight, rapid and somewhat rhythmic bumpiness without appreciable changes in altitude or attitude
lighter-than-air aircraft An aircraft supported in the atmosphere by its buoyancy
limited weather information system An automated weather system that produces an hourly report containing wind speed and direction, temperature, dew point, and altimeter setting
Line Maintenance Breakdown Part Sub-component of an LRU (Line Replaceable Unit) which may be replaced without removing the LRU from the aircraft. Depending on its complexity, an LMP can be repairable or expendable. geseb