GLOSSARY N-Z

 

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Aircraft and Aviation Terms Definitions (Not in any particular order)
N  
NDB Non-Directional Beacon

NOTAM

Notice to Airmen

NPA Non Precision Approach
   
O  

OM

Outer Marker (glideslope)

(Omni) Radial Track (inbound or outbound) from the VOR
   
P  
PAPI

Precision Approach Path Indicator

   
R  

RADAR

Radio Detection And Ranging

RAIM

Receiver autonomous Integrity Monitoring (GPS)

RMI

Radio Magnetic Indicator

RNAV

aRea NAVigation

RVR

Runway Visual Range

RVSM

Reduced Vertical Separation Minimums

   
Q  
QNH Air pressure at sea level.
   
S  

SAR

Search and Rescue

SARWATCH is a generic term covering SAR alerting based on either full-position procedures, scheduled reporting times or SARTIME.

Full-position procedures and scheduled reporting times are only applicable to:

  • IFR flights in all airspace classes
  • most monitored VFR flights operating in controlled airspace.

SARTIME is a specific time nominated by a pilot for the initiation of a SAR action if a report/communication has not been received from the pilot by the nominated Airservices Australia unit.

(E.G. Pilot Cancels SARWATCH upon safe arrival)

 

SID Standard Instrument Departure

SIGMET

Significant Meteorological Advisory

STAR

Standard Terminal Arrival Route

   
T  
TACAN TACtical Air Navigation

TCAS

Traffic Alert and Collision Avoidance System

Touch & Go Aircaft lands as normal. On landing spoilers (Lift Dumpers) are not deployed. Flaps are raised to take-off position. Thrust applied and aircraft continues along runway and lifts off.
Track Route to be flown by aircraft.
Track Direct Flight from one point direct to another.
   
V  
V1

takeoff decision speed

V2

minimum takeoff safety speed at 35'

VASI

Visual Approach Slope Indicator

VFE

maximum flap extended speed

VFR Visual Flight Rules
VHF Very High Frequency (Radio) 30mHz to 300mHz

VMC

Visual Meteorological Conditions (see VFR)

VNE

never-exceed speed

VNO

maximum structural cruising speed

VOR VHF Omni Range

VSI

Vertical Speed Indicator

   

 

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