APPENDIX B
ABBREVIATIONS AND TERMS
AJ -anti-jam
ALT -altitude
ANT -antenna
APU -auxiliary power unit
ATF -aircraft torque factor
BL -butt line
°C -degree Celsius
CBIT -continuous built in test
CCU -converter control unit
CDU -central display unit
CG -center of gravity
CL -center line
DCU -dispenser control unit
DEG -degree
ECM -electronic counter measure
F -change in .at plate drag area
TRQ -change in torque
ECU -electrical control unit
ENG -engine
EOT -element-on-time
ERFS -extended range fuel system
ESU -electronic sequence unit
ESSS -external stores support system
ETF -engine torque factor
ETL -effective translational lift
°F -degree Fahrenheit
FAT -free-air temperature
FPM -feet-per-minute
ft -feet
GPS -global positioning system
GW -gross weight
HAT -height above terrain
HMU -hydromechanical unit
(fuel control)
HQ -have quick
hr -hour
HSI -horizontal situation indicator
HSP -hot start preventor
HSS -horizontal stores support
HUD -heads up display
IAS -indicated airspeed
IAW -in accordance with
IB -inboard
IGE -in ground effect
IN -inch
IN HG -inch of mercury
IPS -inlet particle separator
-inches per second
IR -infrared
IRCM -infrared countermeasures
KCAS -knots calibrated airspeed
KIAS -knots indicated airspeed
KN -knot
KTAS -knots true airspeed
lb -pound(s)
Change 4 B-1 B-2 Change 4
APPENDIX
lb/gal -pounds-per-gallon
lb/hr -pounds-per-hour
LDI -leak detection isolation
LDS -load-demand spindle
LIM -limit
LLL -low light level
LRU -line replaceable unit
LWC -liquid water content
MAX -maximum
MGRS -military grid reference system
MIN -minimum
min -minutes
Ng SPEED 1 or 2 -No. 1 or No. 2 engine
compressor speed % rpm
NM -nautical miles
Np -power turbine speed
NVG -night vision goggles
° -degree
% RPM R -rotor rpm, percent
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