ACRONYM.TXT
Two Letter abbreviations 


 OA	Passenger count in zone A (first class)
 OB	Passenger count in zone B (business class)
 OA	Passenger in zone A (first class)
 OB	Passenger count in zone B (business Class)
 OC	Passenger count in zone C (coach class)
 AL	Flight level
 CG 	Center of gravity
 Cl 	Cost index
 CL	Cruising level
 CR	Company route
 CW 	Cruise wind
 CZ 	Crusing speed {KT knots or M mach}
 DA 	Departure aerodrome
 DG 	Drag factor
 DP 	Dew point
 DS 	Destination station
 DX 	Long Distance
 E1-9 	Engine parameters


 EO 	Estimated time over ;
 ET
 FB 	Amount of fuel boarded
 FC 	Estimated further clearance
 FD 	Fuel over destination


 FF 	Fuel flow factor in pounds per hour
 Fl 	Flight Identification
 FL	Flight level
 FO 	First officer
 FR 	Fault report prefix
 FX 	Enroute fix
 GA	?
 GL 	Geographical location
 HD	Aircraft heading
 IC 	Aircraft icing
 IN 	Time in
 IR 	In range (of VHF radio)
 J2	?
 LA	Identification of officer landing aircraft
 LT 	Light
 MA 	Message assurance
 MN 	Maintenance
 MT 	Maximum takeoff power computation
 N1 	Speed of turbine 1
 N2 	Speed of turbine 2
 NA 	Navaid
 NL 	Number of landings
 NP	Next report point

 OF 	Time off
 ON 	Time on
 OP 	Oil pressure
 OS 	Other supplementary information
 OT 	Time out or oil temperature
 OV 	Present location (over)

 PB	Number of persons on board
 PD 	Point of departure
 PW 	Position weather

 QN	Altimeter settings

 RD	Departure runway
 RF 	Request flight level
 Rl	Return in time i
 RL 	Requesting cruising level
 RM	 Remarks
 RO 	Return on time
 RQ 	Request
 RT 	Route information
 RL 	Request cruising level

 SA 	Alternative aerodrome
 Sl 	Special communication adressing instruction
 SK 	Sky conditions
 SL 	Selcal code
 SP 	Significant point
 ST 	Standard takeoff power
 
 TA 	Static air temperature
 TB 	Turbulence
 TD 	Takeoff temperature
 TE 	Time enroute
 TM 	Surface air temperature
 TO 	Time over
 TP 	Transmission path

 V1 	Velocity 1  Can stop on runway - the velocity at which the pilot
    	can still close throttles and stop safely.
 VR 	Rotate - Velocity at which the pilot pulls back on yoke.
 VR	 Runway visual range
 V2 	Velocity 2 full - velocity at which aircraft actually flies.
 Wl 	Weather
 WP 	Way point
 WV 	Wind information
 WR 	Warning prefix
 WX 	Weather
 
 ZW 	Zero fuel weight
 


 THREE LETTER Abbreviations
 
 ADF 	Automatic dirction finding
 ADS	Automatic dependent surveillance
 AEP 	Fixed ICAO format position report with weather
 AGM 	Start of standard message
 ALT	Altitude
 ALT 	Altimeter
 APP 	Approach
 APU 	Auxiliary power unit
 ATA 	Actual time of arrival
 AUW 	All up weight
 AWD 	Automated weather data
 
 BBG 	in reference to HAZMAT. cargo
 BKN 	Broken
 
 CHP 	Chop
 CLR 	Clear ;
 CPT 	Captain
 CRZ 	used in conjunction with engine data (cruise)
 CTL 	Control
 CVG 	Covering
 DAI 	Display aircraft itinerary
 DBI 	Data base initialization-update
 DDG 	in reference to HAZMAT cargo
 DDX 	Display dispatch message
 DEV 	Display aircraft deviations
 DFR	Display flight routing
 DLD 	in reference to cargo
 DTX 	Display text
 EAC 	Expect approach clearance
 EDA 	Engine data Fo.Ctvs
 EDF    Engine data Follows
 EFC 	Expect final clearance
 EGT 	Exhaust Gas Thrust
 ENG 	Engine data
 EOK 	Everything"OK"
 EON 	Expected touchdown time
 EPR 	Exhaust pressure ratio
 ERR 	Error message
 ERT 	Estimated ramp time
 ELT 	Estimated Landing Time
 FDD 	Flight data recorder information
 FLR 	Fault report
 FLT 	Flight
 FOB 	Fuel on board 
 FPR 	Flightplan request 
 FQY 	Frequency I
 FRM	Maintenance codes I
 FTM 	used before waypoint name
 GMT	Greenwich Mean Time
 
 HDG 	Heading
 
 IAS 	Indicated air speed
 IFR 	Instrument flight rules
 
 LIF 	Request for Load information (weight and balance)
 LND 	Landing
 LOM 	Locator outer marker
 LWT 	Landing weight
 MCH 	Mach (aircraft speed)
 MEL 	Minimum essential list (maintenance codes)
 MSA 	Minimum safe altitude
 MSL 	Mean sea level
 NDP 	Non-directional beacon
 NRP	No report (?)
 NVD 	No visual defects
 
 OAT 	Outside air temperature
 OCA 	Ocean control area
 OCC 	Occasional (weather)
 OFF 	Off time

 OUT 	Out time
 OVR 	Over

 PAX 	Passenger
 PCU 	Power control unit
 POD 	Point of descent
 POS 	Position
 PWD 	Predicted weather data

 QFE 	Airport elevation altimeter pressure setting
 QNF 	Mean sea level altimeter pressure setting

 RCA 	Reached cruise speed altitude
 REV 	in reference to cargo
 ROC 	Rate of climb
 ROD	Rate of descent
 RVR	Runway visual range &
 RWY    Runway
 SAT 	Static air temperature
 SMI 	Standard message identifiers |
 SMT 	Standard message text :;;
 STA 	Station :
 T/O 	Take off :;
 TDX 	with regards to fuel
 TEI 	Text element identifiers 
 TIS 	ATIS information
 TKO	Takeoff
 TPS 	Runway information
 TRB 	Turbulence
 TYP 	Type
 
 VEC 	Vector
 VHF 	Very High Frequency 
 VOR 	Very high frequency omni-directional radio range
 

 WND	Wind (direction/velocity)
 WOB	Weather observation
 WRN	Warning
 WXA	Weather at
 WXR	Weather !

 
 OTHER CODES 

 APRCH 	Approach
 ATISRQ	ATIS request
 AWDAF	Automated Weather Data-Area Forecast
 AWDFT	Automated Weather Data-Terminal Area Forecast
 AWDSA	Automated Weather Data-Air route Forecast

 CLIMB 	Climbing
 CRUISE Cruise level

 DESCEN Descending


 DPTR	Departure

 FAA	Federal Aviation Administration
 FDR 	Flight data recorder

 IATA	International Air Transportation Association
 ICAP	International Civil Aviation Organization
 INCLIMBIn climb
 INRANG	In range of (VHF)
 INRP	In report
 IR	Instrument rated
 
 LEVEL	Level flight
 LIVE	Live cargo (animals) ;
 OFFRP	Off report
 ONRP 	On report
 OUTRP 	Out report
 
 PIREP	Pilot's report
 POSWX 	Position weather

 RGS	Remote Ground Station


 SMI	Standard Message Identifiers
 SMT	StandarJ Message Text
 TEI	Text Element Identifiers
 TYP 1 	Type 1 weather request
 TYP 2 	Type 2 weather request
 UDCST 	Undercast sky
 MAAS	Meet ansd assist 
 WXRQ 	Weather request
 XPDR 	Transponder
 
 

