TM 55-6930-214-10
L
LDNS
Lightweight Doppler navigation set
LOS
Line-of-sight
LRF/D/T
Laser range finder/designation/tracking
LKD
Locked
LT
Light
M
Malfunction
MALF
MCS
Main computational system
Mission elapsed time
MET
Manual freeze
MF
Manual
MNL
Monitor
MON
MS
Malfunction simulation
Missile or mean sea level
MSL
MSTR
Master
N
NAV
Navigation
NOE
Nap-of-the-earth
Main rotor speed
NR
O
Observer
OBS or OBV
ORT
OTW
Out-the-window
OUTBD
Outboard
OVRD
Override
P
PA
PAR
Precision approach radar
PDS
Program design specifications
PEN AIDS
Penetration aids
PF
Parameter freeze
PH
PLT
Pilot
PNVS
Pilot night vision sensor
PTR
Pointer
Private
PVT
Q
R
RA
Radar altitude
RCL
Recall
Remote display
RD
Glossary 3