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IFR Acronyms Flashcards

1
Q

SIDs

A

Standard Instrument Departure

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2
Q

VMC

A

Visual Meteorological Conditions

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3
Q

IMC

A

Instrument Meteorological Conditions

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4
Q

DP

A

Departure Procedures

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5
Q

STARS

A

Standard Terminal Arrival Routes

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6
Q

ODP

A

Obstacle Departure Procedure

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6
Q

IIMC

A

Inadvertent Instrument Meteorological Conditions

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7
Q

STARs

A

Standard Terminal Arrival Routes

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8
Q

SOPs

A

Standard Operating Procedures

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9
Q

MEL

A

Minimum Equipment Lists

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10
Q

HIWAS

A

Hazardous Inflight Weather Advisory Service

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11
Q

TWEB

A

Transcribed Weather Broadcast

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12
Q

AWOS

A

Automated Weather Observation Station

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13
Q

ASOS

A

Automated Surface Observing Station

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14
Q

ARTCC

A

Air Route Traffic Control Center

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15
Q

DP requirements

A
  1. Cross end of runway at 35 ft min.
  2. Maintain 200 FPM climb rate
  3. Clear 400 ft AGL before executing any turns
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16
Q

IAP

A

Instrument Approach Procedure

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17
Q

TERPS

A

Terminal Instrument Procedures

A “living” document of procedures

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18
Q

FAF

A

Final Approach Fix

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19
Q

FAP

A

Final Approach Point

The point, applicable only to a nonprecision approach with no depicted FAF (such as an on airport VOR), where the aircraft is established inbound on the final approach course from the procedure turn and where the final approach descent may be commenced. The FAP serves as the FAF and identifies the beginning of the final
approach segment.

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20
Q

TCH

A

Threshold Crossing Height

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21
Q

MAA

A

Maximum Authorized Altitude

Maximum height to receive NAVAID signals

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22
Q

TPP

A

Terminal Procedures Publication

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23
Q

MCA

A

Minimum Crossing Altitude

Flag with an X
Indicates a higher altitude necessary to receive NAVAID signal

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24
MEA
Minimum Enroute Altitude The minimum en route altitude (MEA) ensures a navigation signal strong enough for adequate reception by the aircraft navigation (NAV) receiver and obstacle clearance along the airway.
25
MIA
Minimum IFR Altitude
26
ROC
Required Obstacle Clearance 1000 ft in non-mountainous areas 2000 ft in mountainous areas
27
MOCA
Minimum Obstruction Clearance Altitude NAV signal reception is ensured only within 22 NM of the closest NAVAID defining the route. The Minimum Obstacle Clearance Altitude is the lowest published altitude in effect between radio fixes on VOR Airways, off airway routes, or route segments which meets obstacle clearance requirements for the entire route segment and which assures acceptable navigational signal coverage only within 25 SM (22NM) of a VOR ...
28
MSA
Minimum Safe Altitude
29
MDA
Minimum Descent Altitude
30
MRA
Minimum Reception Altitude The minimum reception altitude (MRA) identifies the lowest altitude at which an intersection can be determined from an off-course NAVAID.
31
MVA
Minimum Vectoring Altitude
32
HSI
Horizontal Situation Indicator
33
CDI
Course Deviation Indicator
34
DA
Decision Altitude MSL height for non-precision approaches.
35
MAP
Missed Approach Point
36
DH
Decision Height Height above threshold (HAT) for precision approaches.
37
HAA
Height Above Airport Circling approach minimum altitude.
38
HAT
Height Above Threshold Straight in approach minimum height.
39
ADS-B
Automatic dependent surveillance–broadcast A device used in aircraft that repeatedly broadcasts a message that includes position (such as latitude, longitude, and altitude), velocity, and possibly other information.
40
TRACON
Terminal Radar Approach Control
41
ATCT
Airport Traffic Control Tower
42
TEC
Tower En Route Control IFR Clearances handed from tower to tower.
43
PRM
Precision Runway Monitor
44
TAA
Terminal Arrival Area
45
LNAV
Lateral Navigation Azimuth navigation without positive vertical guidance. This type of navigation is associated with nonprecision approach procedures or en route.
46
VNAV
Vertical Navigation Traditionally, the only way to get glidepath information during an approach was to use a ground-based NAVAID, but modern area navigation systems allow flight crews to display an internally generated descent path that allows a constant rate descent to minimums during approaches that would otherwise include multiple level-offs.
47
RNAV
Area Navigation Allows flight to a predetermined point without needing to overfly ground based navigation facilities by using waypoints.
48
RNP
Required Navigation Performance RNP is a statement of the navigation performance necessary for operation within a defined airspace. On-board monitoring and alerting is required.
49
DER
Departure End of Runway
50
AER
Approach End of Runway
51
SER
Start End of Runway
52
OROCA
Off Route Obstruction Clearance Altitude
53
MTR
Military Training Route
54
COP
Change Over Point A point where VOR frequencies are to be changed.
55
RVR
Runway Visual Range Visibility figures are provided in statute miles or runway visual range (RVR), which is reported in hundreds of feet. RVR is measured by a transmissometer, which represents the horizontal distance measured at points along the runway. It is based on the sighting of either high intensity runway lights or on the visual contrast of other targets, whichever yields the greater visual range. RVR is horizontal visual range, not slant visual range, and is used in lieu of prevailing visibility in determining minimums for a particular runway. It is illustrated in hundreds of feet if less than a mile (i.e., “24” is an RVR of 2,400 feet).
56
Precision IFR Minimums
Precision approach procedures require a 600-feet ceiling and 2 statute miles visibility.
57
Non-precision IFR approach Minimums
Nonprecision approaches require an 800-feet ceiling and 2 statute miles visibility.
58
TDZE
Touchdown Zone Elevation The highest elevation within the first 3,000 feet of the runway, is designated at the approach end of the procedure’s runway.
59
ALS
Approach Lighting System
59
MALSR
Medium Intensity Approach Lighting with Sequenced flashing Lights Noted as A5
60
REIL
Runway End Indicator Lights
61
HIRL
High Intensity Runway Lights
63
MIRL
Medium Intensity Runway Lights
64
LIRL
Low Intensity Runway Lights
65
INT
Intersection
66
PCL
Pilot Controlled Lighting
67
RCL
Runway Centerline Lighting
68
OBS
Omni Bearing Selector
69
TORA
Take-off Runway Available Paved runway for ground run.
70
TODA
Take-off Distance Available TORA + clear way
71
ASDA
Accelerate-Stop Distance Available TORA + stop way
72
LDA
Landing Distance Available
74
VCOA
Visual Climb Over Airport A departure procedure requiring climbing while circling over the airport via visual reference.
75
CG
Climb Gradients FTPNM (feet per nautical mile)
76
MORA
Minimum Off Route Altitude https://en.m.wikipedia.org/wiki/Minimum_Off_Route_Altitude
77
MALS
Medium Intensity Approach Light System
78
RAIL
Runway Alignment Indicator Lights
79
RCLS
Runway Centerline Light System
80
MEF
Maximum Elevation Figure On VFR charts, the quadrangle heights.

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