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Flight School > IFR Acronyms > Flashcards

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
Q

MEA

A

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.

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25
Q

MIA

A

Minimum IFR Altitude

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26
Q

ROC

A

Required Obstacle Clearance

1000 ft in non-mountainous areas

2000 ft in mountainous areas

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27
Q

MOCA

A

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 …

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28
Q

MSA

A

Minimum Safe Altitude

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29
Q

MDA

A

Minimum Descent Altitude

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30
Q

MRA

A

Minimum Reception Altitude

The minimum reception altitude (MRA) identifies the lowest altitude at which an intersection can be determined from an off-course NAVAID.

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31
Q

MVA

A

Minimum Vectoring Altitude

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32
Q

HSI

A

Horizontal Situation Indicator

33
Q

CDI

A

Course Deviation Indicator

34
Q

DA

A

Decision Altitude

MSL height for non-precision approaches.

35
Q

MAP

A

Missed Approach Point

36
Q

DH

A

Decision Height

Height above threshold (HAT) for precision approaches.

37
Q

HAA

A

Height Above Airport

Circling approach minimum altitude.

38
Q

HAT

A

Height Above Threshold

Straight in approach minimum height.

39
Q

ADS-B

A

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
Q

TRACON

A

Terminal Radar Approach Control

41
Q

ATCT

A

Airport Traffic Control Tower

42
Q

TEC

A

Tower En Route Control

IFR Clearances handed from tower to tower.

43
Q

PRM

A

Precision Runway Monitor

44
Q

TAA

A

Terminal Arrival Area

45
Q

LNAV

A

Lateral Navigation

Azimuth navigation without positive vertical guidance. This type of navigation is associated with nonprecision approach procedures or en route.

46
Q

VNAV

A

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
Q

RNAV

A

Area Navigation

Allows flight to a predetermined point without needing to overfly ground based navigation facilities by using waypoints.

48
Q

RNP

A

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
Q

DER

A

Departure End of Runway

50
Q

AER

A

Approach End of Runway

51
Q

SER

A

Start End of Runway

52
Q

OROCA

A

Off Route Obstruction Clearance Altitude

53
Q

MTR

A

Military Training Route

54
Q

COP

A

Change Over Point

A point where VOR frequencies are to be changed.

55
Q

RVR

A

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
Q

Precision IFR Minimums

A

Precision approach procedures require a 600-feet ceiling and 2 statute miles visibility.

57
Q

Non-precision IFR approach Minimums

A

Nonprecision approaches require an 800-feet ceiling and 2 statute miles visibility.

58
Q

TDZE

A

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
Q

ALS

A

Approach Lighting System

59
Q

MALSR

A

Medium Intensity Approach Lighting with Sequenced flashing Lights

Noted as A5

60
Q

REIL

A

Runway End Indicator Lights

61
Q

HIRL

A

High Intensity Runway Lights

63
Q

MIRL

A

Medium Intensity Runway Lights

64
Q

LIRL

A

Low Intensity Runway Lights

65
Q

INT

A

Intersection

66
Q

PCL

A

Pilot Controlled Lighting

67
Q

RCL

A

Runway Centerline Lighting

68
Q

OBS

A

Omni Bearing Selector

69
Q

TORA

A

Take-off Runway Available

Paved runway for ground run.

70
Q

TODA

A

Take-off Distance Available

TORA + clear way

71
Q

ASDA

A

Accelerate-Stop Distance Available

TORA + stop way

72
Q

LDA

A

Landing Distance Available

74
Q

VCOA

A

Visual Climb Over Airport

A departure procedure requiring climbing while circling over the airport via visual reference.

75
Q

CG

A

Climb Gradients

FTPNM (feet per nautical mile)

76
Q

MORA

A

Minimum Off Route Altitude

https://en.m.wikipedia.org/wiki/Minimum_Off_Route_Altitude

77
Q

MALS

A

Medium Intensity Approach Light System

78
Q

RAIL

A

Runway Alignment Indicator Lights

79
Q

RCLS

A

Runway Centerline Light System

80
Q

MEF

A

Maximum Elevation Figure

On VFR charts, the quadrangle heights.

Flight School (25 decks)

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