L-Band carrier (1575.42 Mhz)
L1011 Lockheed Model 1011 Aircraft
L2 L-Band carrier (1227.6 MHz)
LAAS Local Area Augmentation System
LAC Lineas Aereas Del Caribe (an airline)
LADGPS Local Area Differential GPS
LAN Local Area Network
LAT Latitude
L-Band A radio frequency band from 390 to 1550 MHz.
LCC Leadless Chip Carrier
LCD Liquid Crystal Display
LCP Lighting Control Panel
LCSTB Low Cost Simulation Testbed
LD Lower Data
LDCC Leaded Chip Carrier
LDGPS Local Area Differential Global Positioning Satellite
LDU Lamp Driver Unit
LED Light Emitting Diode
Leg The section of the flight between two waypoints.
LF Low Frequency. The frequency range from 30 to 300
kHz.
LGA Low Gain Antenna
LH Lufthansa
LHP Lightning HIRF Protection
LIB Left Inboard
LISN Line Impedance Stabilization Network
LLP Left Lower Plug. Identifies the plug on the rear con-nector of an avionics unit.
LLWAS Low-Level Wind Shear Alert System
L/M List of Materials
LMM Locator Middle Marker. An NDB that is co-located at the same site as the 75 MHz middle marker beacon.
LMP Left Middle Plug. Identifies the plug on the rear con-nector of an avionics unit.
LMT Local Mean Time
LNA Low Noise Amplifier
LNAV Lateral Navigation
LOB Left Outboard
LOC Localizer. The lateral guidance portion of an ILS sys-tem.
Lock-On The condition that exists when the DME receives reply pulses to at least 50 percent of the interroga-tions. Valid distance information is then available.
LOM Locator Outer Marker. An NDB that is co-located at the same site as the 75 MHz outer marker beacon.
LON Longitude
LORAN Long Range Navigation. A system using a ground facil-ity composed of a master station and a slave station. The airborne receiver computes the position of the aircraft by using two or more received master-slave pairs of signals. LORAN-A operates at 1850,1900 and 1950 kHz. LORAN-C operates at 100 kHz. LORAN A was replaced by LORAN C in 1980.
LORAN C Long Range Navigation System
LOS Line Of Sight
LPC Low Pressure Compressor
LPT Low Pressure Turbine
LRA (See RALT)
LRM Line Replaceable Module
LRRA (See RALT)
LRU Line Replaceable Unit
LSB (1) Lower Sideband. The lower sideband is the differ-
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