ICAO Approach Classifications: Difference between revisions

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=ICAO approach classifications=
[[image:ICAO-IAP.png]]
[[image:ICAO-IAP.png]]


The ICAO approach classifications.
Instrument licences are divided between 2D and 3D IAP endorsements, and there are cases where pilots do not have access to a 2D IAP,  or in some remote areas have no access to 3D IAP.


2D IAP are divided between:
* Lateral guidance with Course Deviation Indicator, and
* Azimuth Guidance via a relative bearing indicator.


instrument licences are divided between 2D and 3d IAP  endorsements, and there are cases where pilots do not have access to a 2D IAP,  or in some remote areas no access to 3D IAP.
An instrument rating initial issue must test a 2D IAP <ref>https://www.casa.gov.au/licences-and-certificates/pilots/ratings-reviews-and-endorsements/instrument-ratings/instrument-approach-operations#2DIAPand3DIAPendorsements</ref> <ref>https://www.casa.gov.au/performance-based-navigation</ref>.
 
2D IAP are divided between Lateral guidance with Course Deviation Indicator and Azimuth Guidance via a relative bearing indicator.
 
An instrument rating initial issue must test a 2D IAP <ref>https://www.casa.gov.au/licences-and-certificates/pilots/ratings-reviews-and-endorsements/instrument-ratings/instrument-approach-operations#2DIAPand3DIAPendorsements
</ref> .


2D IAP covers:
2D IAP covers:
# NDB
# NDB
# VOR and LOC (if you have shown competency conducting VOR approaches, we consider you skilled enough to conduct LOC approaches)
# VOR and LOC <ref group="note">If you have shown competency conducting VOR approaches, CASA considers you skilled enough to conduct LOC approaches. A LOC approach is flown with reference to the VOR when the ILS GS signal fails (and the NAV is switched back to the VOR frequency).</ref>
# DGA (DME/GNSS arrival)
# DGA (DME/GNSS arrival)
# RNAV GNSS LNAV (RNP LNAV) or RNAV GNSS LP (RNP-LP)
# RNAV GNSS LNAV (RNP LNAV) or RNAV GNSS LP (RNP-LP)
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# Precision: ILS with LOC and GS
# Precision: ILS with LOC and GS
3D does '''not''' cover:
3D does '''not''' cover:
* RNAV GNSS VNAV even if your aircraft system displays GS due to advisory limitations and the lack of IAP minimas published in Australia
* RNAV GNSS VNAV <ref group=note>Even if your aircraft system displays GS, due to advisory limitations and the lack of IAP minimas published in Australian a VNAV / LVP approach must be flown to 2D minimas and does not satisfy the requirements of demonstrating a 3D approach.</ref>


Recency requirements to conduction an IAP:
==recency==
* 3D IAP - an approach must have conducted in last 90 days
Recency requirements to conduct an IAP:
* 2D IAP - lateral and approach must have conducted in last 90 days
* 3D IAP - a 3D approach must have conducted in last 90 days
* 2D IAP - lateral, a 2D lateral approach must have conducted in last 90 days
* Azimuth IAP - an Azimuth approach must have been conducted in the last 90 days
* Azimuth IAP - an Azimuth approach must have been conducted in the last 90 days
=notes=
=notes=
<references group="note"/>
<references group="note"/>
=references=
=references=
<references/>
<references/>
==categories==
[[category:IFR]]
[[category:Aviation]]
[[Category:Instrument Flying]]
[[Category:Aviation Publication]]
[[category:public]]

Latest revision as of 15:08, 14 February 2025

ICAO approach classifications

Instrument licences are divided between 2D and 3D IAP endorsements, and there are cases where pilots do not have access to a 2D IAP, or in some remote areas have no access to 3D IAP.

2D IAP are divided between:

  • Lateral guidance with Course Deviation Indicator, and
  • Azimuth Guidance via a relative bearing indicator.

An instrument rating initial issue must test a 2D IAP [1] [2].

2D IAP covers:

  1. NDB
  2. VOR and LOC [note 1]
  3. DGA (DME/GNSS arrival)
  4. RNAV GNSS LNAV (RNP LNAV) or RNAV GNSS LP (RNP-LP)

3D IAO covers:

  1. Precision: ILS with LOC and GS

3D does not cover:

recency

Recency requirements to conduct an IAP:

  • 3D IAP - a 3D approach must have conducted in last 90 days
  • 2D IAP - lateral, a 2D lateral approach must have conducted in last 90 days
  • Azimuth IAP - an Azimuth approach must have been conducted in the last 90 days

notes

  1. If you have shown competency conducting VOR approaches, CASA considers you skilled enough to conduct LOC approaches. A LOC approach is flown with reference to the VOR when the ILS GS signal fails (and the NAV is switched back to the VOR frequency).
  2. Even if your aircraft system displays GS, due to advisory limitations and the lack of IAP minimas published in Australian a VNAV / LVP approach must be flown to 2D minimas and does not satisfy the requirements of demonstrating a 3D approach.

references

categories