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Abreviations Flashcards

1
Q

AD

A

Airworthiness Directive

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2
Q

ADF

A

Automatic direction finder

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3
Q

A/FD

A

Airport/ facility directory

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4
Q

AFM

A

Approved flight manual

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5
Q

AGL

A

Above ground level

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6
Q

AH

A

Artificial horizon

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7
Q

AI

A

Attitude indicator

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8
Q

AIM

A

Airman’s Information Manual

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9
Q

AIRMET

A

Aeronautical Meteorological Information

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10
Q

ALS

A

Approach light system

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11
Q

ALT

A

Altitude, altimeter

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12
Q

A&P

A

Airframe and power plant

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13
Q

APG

A

Adverse pressure gradient

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14
Q

ASI

A

Airspeed indicator

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15
Q

ASOS

A

Automated surface observing system

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16
Q

ATC

A

Air traffic control

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17
Q

ATCO

A

Air Taxi and Commercial Operators

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18
Q

ATCRBS

A

Air traffic control radar beacon system

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19
Q

ATD

A

Actual time of departure

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20
Q

ATIS

A

Automatic terminal Information service

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21
Q

ATP

A

Airline transport pilot

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22
Q

AVASI

A

Abbreviated VASI

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23
Q

AVGAS

A

Aviation gasoline

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24
Q

AWOS

A

Automated weather observation system

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25
Q

BDC

A

Bottom-dead-center

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26
Q

BFO

A

Beat frequency oscillator (ADF mode)

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27
Q

BHP

A

Brake horsepower

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28
Q

CA

A

Closing angle

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29
Q

CAT

A

Clear air turbulence

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30
Q

CDI

A

Course deviation indicator

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31
Q

CFI

A

Certified flight instructor

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32
Q

CP

A

Center of pressure

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33
Q

CG

A

Center of gravity

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34
Q

CHT

A

Cylinder head temperature

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35
Q

CRS

A

Course

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36
Q

CST

A

Central standard time

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37
Q

CTAF

A

Common traffic advisory frequency

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38
Q

CW

A

Continuous wave (ADF mode)

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39
Q

DA

A

Density altitude

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40
Q

DALR

A

Dry adiabatic lapse rate

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41
Q

D.C.

A

Direct current

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42
Q

DF

A

Direction finder (in tower)

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43
Q

DG

A

Directional gyro (replaced by HI)

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44
Q

DME

A

Distance measuring equipment

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45
Q

DR

A

Dead (deduced) reckoning

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46
Q

DUAT

A

Direct user access terminal (wx briefing)

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47
Q

EDT

A

Eastern daylight time

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48
Q

EFAS

A

En route flight advisory service (“flight watch”)

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49
Q

EGT

A

Exhaust gas temperature

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50
Q

ELT

A

Emergency locator transmitter

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51
Q

ELR

A

Environmental lapse rate

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52
Q

EST

A

Eastern standard time

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53
Q

ETA

A

Estimated time of arrival

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54
Q

ETD

A

Estimated time of departure

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55
Q

ETE

A

Estimated time en route

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56
Q

ETI

A

Estimated time interval

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57
Q

FA

A

Area forecasts

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58
Q

FAA

A

Federal aviation administration

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59
Q

FBO

A

Fixed base operator

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60
Q

FCU

A

Fuel control unit

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61
Q

FL

A

Flight level (hundreds of feet) FL210 = 21,000 ft

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62
Q

Fpm

A

Feet per minute

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63
Q

FSS

A

Flight service station (call for wx briefing)

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64
Q

GMT

A

Greenwich Mean Time
Zulu
UTC

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65
Q

Gph

A

Gallons per hour

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66
Q

GPS

A

Global Positioning System

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67
Q

GS

A

Ground speed or

Glide slope

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68
Q

GW

A

Gross weight

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69
Q

HAA

A

Height above airport

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70
Q

HDG

A

Heading

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71
Q

HIRL

A

High intensity runway lights

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72
Q

HIWAS

A

Hazardous in-flight weather advisory service

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73
Q

HSI

A

Horizontal situation indicator

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74
Q

HWC

A

Headwind correction

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75
Q

IAS

A

Indicated airspeed

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76
Q

ICAO

A

International Civil Aviation Organization

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77
Q

IFR

A

Instrument flight rules

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78
Q

ILS

A

Instrument landing system

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79
Q

IMC

A

Instrument meteorological conditions

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80
Q

IOAT

A

Indicated outside air temperature

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81
Q

ISA

A

International standard atmosphere

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82
Q

KCAS

A

Knots calibrated airspeed

83
Q

KIAS

A

Knots indicated airspeed

84
Q

KTAS

A

Knots true airspeed

85
Q

LDA

A

Landing distance available

86
Q

LIRL

A

Low intensity runway lights

87
Q

LORAN

A

Long range navigation system

88
Q

LoP

A

Line of position

89
Q

LW

A

Landing weight

90
Q

MAC

A

Mean aerodynamic chord (weight and balance)

91
Q

MC

A

Magnetic compass or magnetic course

92
Q

MCP

A

Maximum continuous power

93
Q

MEF

A

Maximum elevation figure

94
Q

METAR

A

Aviation routine weather forecast

95
Q

METO

A

Maximum except takeoff power

96
Q

MH

A

Magnetic heading

97
Q

MIRL

A

Medium intensity runway lights

98
Q

MLS

A

Microwave landing system

99
Q

MLW

A

Maximum certificated landing weight

100
Q

MOA

A

Military Operations Area

101
Q

MSA

A

Minimum safe altitude

102
Q

MSL

A

Mean Sea Level

103
Q

MST

A

Mountain Standard Time

104
Q

MTOW

A

Maximum certificated takeoff weight

105
Q

MTR

A

Military Training Route

106
Q

MULTICOM

A

A self-announce radio frequency

107
Q

MVFR

A

Marginal VFR

108
Q

MZFW

A

Maximum zero fuel weight

109
Q

NDB

A

Nondirectional radio beacon

110
Q

NM

A

Nautical Mile

111
Q

NACO

A

National Ocean Service (charts)

112
Q

NOTAM

A

Notice to Airmen

113
Q

NTSB

A

National Transport Safety Board

114
Q

NWS

A

National Weather Service

115
Q

OAT

A

Outside air temperature

116
Q

OBI

A

Omni bearing indicator (VOR cockpit instrument)

117
Q

OBS

A

Omni bearing selector

118
Q

OMNI

A

VHF omnidirectional radio range (same as VOR)

119
Q

ONC

A

Operational Navigation Charts

120
Q

PA

A

Pressure altitude

121
Q

PAPI

A

Precision approach path indicator

122
Q

PATWAS

A

Pilots’ automatic telephone weather service

123
Q

PCL

A

Pilot controlled lighting

124
Q

PDT

A

Pacific Daylight Time

125
Q

P-factor

A

Asymmetric propellor blade effect

126
Q

PIREP

A

Pilot weather report

127
Q

PL

A

Position line

128
Q

POH

A

Pilot’s Operating Handbook

129
Q

PRV

A

Pressure Relief Valve

130
Q

PST

A

Pacific Standard Time

131
Q

PVASI

A

Pulsating VASI

132
Q

QNH

A

International term for altimeter setting

133
Q

RAIL

A

Runway alignment indicator lights

134
Q

RB

A

Relative bearing

135
Q

RBI

A

Relative bearing indicator

136
Q

RCLS

A

Runway centerline light system

137
Q

RCO

A

Remote communications outlet

138
Q

REIL

A

Runway end identifier lights

139
Q

RMI

A

Radio magnetic indicator

140
Q

RNAV

A

Area navigation

141
Q

RoC

A

Rate of climb

142
Q

RPM

A

Revolutions per minute

143
Q

RWY

144
Q

SAE

A

Society of Automotive Engineers

145
Q

SALR

A

Saturated adiabatic lapse rate

146
Q

SAR

A

Specific air range; search and rescue

147
Q

SD

A

Radar weather reports

148
Q

SFL

A

Sequenced flashing lights

149
Q

SGR

A

Specific ground range

150
Q

SIGMET

A

Significant meteorological advisory alert

151
Q

SM

A

Statute mile

152
Q

SSR

A

Secondary surveillance radar

153
Q

SSV

A

Standard service volume

154
Q

SVFR

A

Special Visual Flight Rules

155
Q

TACAN

A

Military navigation station (see VORTAC)

156
Q

TAF

A

Terminal aerodrome forecast

157
Q

TAS

A

True airspeed

158
Q

TC

A

Turn coordinator or true course

159
Q

TCA

A

Terminal control area

160
Q

TDC

A

Top-dead-center

161
Q

TDZL

A

Touchdown zone lights

162
Q

TE

A

Tracking error

163
Q

TH

A

True heading

164
Q

TOSS

A

Takeoff safety speed

165
Q

TOW

A

Takeoff weight

166
Q

TPA

A

Traffic pattern altitude

167
Q

TR

168
Q

TRSA

A

Terminal Radar Service Area

169
Q

TTS

A

Time to the station

170
Q

TVASI

A

T-form VASI

171
Q

TWEB

A

Transcribed weather broadcast

172
Q

UNICOM

A

Aeronautical advisory radio communications unit

173
Q

UTC

A

Coordinated Universal Time
Zulu
Greenwich Mean Time

174
Q

Va

A

Design maneuvering speed

175
Q

Vb

A

Turbulence penetration speed

176
Q

VASI

A

Visual approach slope indicator

177
Q

VDF

A

VHF direction finding system

178
Q

VF

A

Design flap speed

179
Q

Vfe

A

Maximum flaps-extended speed

180
Q

VFR

A

Visual flight rules

181
Q

VHF

A

Very high frequency

182
Q

Vle

A

Maximum landing gear extended speed

183
Q

Vlo

A

Maximum speed, landing gear operating

184
Q

Vman

A

Design maneuvering speed

185
Q

VMC

A

Visual meteorological conditions

186
Q

Vne

A

Never exceed speed

187
Q

Vno

A

Normal-operating speed limit

188
Q

VNR

A

VFR not recommended

189
Q

VOR

A

VHF omnidirectional radio range

190
Q

VORTAC

A

Co-located and integrated VOR and TACAN

191
Q

Vra

A

Rough air speed

192
Q

Vs

A

Stall speed

193
Q

Vs0

A

Stall speed in landing configuration

194
Q

VSI

A

Vertical speed indicator

195
Q

Vx

A

Best angle of climb speed

196
Q

Vy

A

Best rate of climb speed

197
Q

WAC

A

World Aeronautical Charts

198
Q

WCA

A

Wind correction angle

199
Q

WSFO

A

National Weather Service Forecast Office

200
Q

WSO

A

National Weather Service Office

201
Q

W/V

A

Wind velocity

202
Q

WX

203
Q

ZFW

A

Zero fuel weight

Aviation (5 decks)

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