IFR 2D & 3D Approach Question
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IFR 2D & 3D Approach Question
Been abroad for a decade, looking at a QF Link Ad, whats a 2D and a 3D ?
"Hold current endorsements for Instrument Approach 2D and 3D on a current Australian Instrument Rating "
Cheero Folks, Thanks.
"Hold current endorsements for Instrument Approach 2D and 3D on a current Australian Instrument Rating "
Cheero Folks, Thanks.
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Hi Ejector,
Two-dimensional (2D) instrument approach operations, using lateral navigation guidance only, e.g. a VOR,NDB,RNAV approach or
Three-dimensional (3D) instrument approach operations, using both lateral and vertical navigation guidance, e.g. an ILS,GLS, Lnav/Vnav approach.
https://www.airservicesaustralia.com...up/a14-h26.pdf
Two-dimensional (2D) instrument approach operations, using lateral navigation guidance only, e.g. a VOR,NDB,RNAV approach or
Three-dimensional (3D) instrument approach operations, using both lateral and vertical navigation guidance, e.g. an ILS,GLS, Lnav/Vnav approach.
https://www.airservicesaustralia.com...up/a14-h26.pdf
Well at least it's fixed up the recency nonsense where the easiest approach had a 35 day recency and the hardest approach had a 90 day one...
Clear to land it's from EASA Land. Your lot use it to with EBT.
Well at least it's fixed up the recency nonsense where the easiest approach had a 35 day recency and the hardest approach had a 90 day one
OK I will be more specific-no one else (that I am aware of) specifies it on an Instrument Rating using that terminology. The generic term Instrument Rating is what is commonly used.
This might help: https://www.icao.int/Meetings/PBN-Sy...sification.pdf
VOR approach does not have an LNAV/VNAV minima. VOR approach has an MDA. If you want to fly a VOR approach as a 3D approach operation, then in order to treat the MDA as a DA, you must add an amount to ensure that you do not descend below the MDA during the transition to missed approach. Typically this amount is 50ft.
Love it - I'm doing tup-pence and thrip-pence approaches from now - but only with old guys who know what a pence is.
For those seeing it for the first time - 2D equates precisely to non-precision approach; has only indirect vertical guidance (using time or distance), and has an MDA. 3D equates to a precision approach; vertical guidance (glideslope) shown on the instrument and has DA. If it doesn't have a DA or if you're not seeing a GS, then it's a 2D.
And as a postscript, L/VNAV with vertical guidance from your baro-aided GPS needs specific approval - you can't (legally) just do it because your fancy glass cockpit can do it; it's not included in the strange list of approaches you're deemed capable of by virtue of having a GPS. (You didn't think it would be that easy!)
For those seeing it for the first time - 2D equates precisely to non-precision approach; has only indirect vertical guidance (using time or distance), and has an MDA. 3D equates to a precision approach; vertical guidance (glideslope) shown on the instrument and has DA. If it doesn't have a DA or if you're not seeing a GS, then it's a 2D.
And as a postscript, L/VNAV with vertical guidance from your baro-aided GPS needs specific approval - you can't (legally) just do it because your fancy glass cockpit can do it; it's not included in the strange list of approaches you're deemed capable of by virtue of having a GPS. (You didn't think it would be that easy!)
Last edited by drpixie; 6th Aug 2021 at 02:38. Reason: typo
Love it - I'm doing tup-pence and thrip-pence approaches from now - but only with old guys who know what a pence is.
For those seeing it for the first time - 2D equates precisely to non-precision approach; has only indirect vertical guidance (using time or distance), and has an MDA. 3D equates to a precision approach; vertical guidance (glideslope) shown on the instrument and has DA. If it doesn't have a DA or if you're not seeing a GS, then it's a 2D.
And as a postscript, L/VNAV with vertical guidance from your baro-aided GPS needs specific approval - you can't (legally) just do it because your fancy glass cockpit can do it; it's not included in the strange list of approaches you're deemed capable of by virtue of having a GPS. (You didn't think it would be that easy!)
For those seeing it for the first time - 2D equates precisely to non-precision approach; has only indirect vertical guidance (using time or distance), and has an MDA. 3D equates to a precision approach; vertical guidance (glideslope) shown on the instrument and has DA. If it doesn't have a DA or if you're not seeing a GS, then it's a 2D.
And as a postscript, L/VNAV with vertical guidance from your baro-aided GPS needs specific approval - you can't (legally) just do it because your fancy glass cockpit can do it; it's not included in the strange list of approaches you're deemed capable of by virtue of having a GPS. (You didn't think it would be that easy!)
Read more https://safetyfirst.airbus.com/safel...nt-approaches/ and https://airbus-win.com/guidance-modes/
While 2D/3D approaches are defined by ICAO, needing specific endorsements on your licence is something more unique to Australia. Outside Australia, if your type rated, you can fly whatever that type is limited to (limited by the operators approvals). Flying those approaches on the type is handled more at the aircraft rating level (as the manufacturers outlines how these are to be performed), than a licence level.
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We could all move to the Star wars approaches
the R2D2 approach relies on aural beeps and whistles to remain within tolerance.
The Darth Vader approach only used on the dark side, ie. at night.
The Skywalker approach where you must tune in to the force.
Finally the Yoda approach where centreline maintained must be within two parsecs.
the R2D2 approach relies on aural beeps and whistles to remain within tolerance.
The Darth Vader approach only used on the dark side, ie. at night.
The Skywalker approach where you must tune in to the force.
Finally the Yoda approach where centreline maintained must be within two parsecs.