TM 55-6930-212-10
H - Continued
HF
High frequency
HYD
Hydraulic
HZ
Hertz
I
IAS
Indicated airspeed
IC
Initial condition
ICS
Intercommunications system
ID
Identification
IFF
Identification friend or foe
IFR
Instrument flight regulations
ILS
Instrument landing system
INC
Instrument meteorological conditions
IND
Indicator
INFO
Information
INST
Instrument
INT
Inter; internal; intensity
INTLK
Interlock
IOS
Instructor operator station
IPFN
Panama City
ITLH
Tallahassee
K
KHZ
Kilohertz
L
LAT
Latitude
LBS
Pounds
LF
Low frequency
LH
Left-hand
LONG
Longitude
LOS
Line-of-sight
LSF/LS
Lawson AAF
LVL
Level
M
MAINT
Maintenance
MALF; MAL
Malfunction
MAX
Maximum
MEM
Memory
MET
Mission elapsed time
MGM
Dannelly
MHZ
Megahertz
MIN
Minutes; minimum
Glossary 3
