NDB Approach Lateral Deviation
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Joined: Nov 2007
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From: NYC
NDB Approach Lateral Deviation
I'm reviewing aviation material. I was going over instrument appr. I was wondering in Europe and other parts of the world...what is considered being laterally off course for an NDB approach to where a go around would be necessary?
I can't remember what the answer is for in the states.
I was watching this video and the video seems to imply that 8 degrees or 10 degrees is considered out of bounds and would cause a need to go around during an NDB approach.
See time mark 32:14 of this video.
Your thoughts.
I can't remember what the answer is for in the states.
I was watching this video and the video seems to imply that 8 degrees or 10 degrees is considered out of bounds and would cause a need to go around during an NDB approach.
See time mark 32:14 of this video.
Your thoughts.
Joined: Jul 2006
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From: Somewhere over the rainbow
5 degrees in our SOP which is ridiculously low considering how much the needle fluctuates in the real world. In the sim it's doable tho.
Last edited by pineteam; 30th May 2018 at 06:15. Reason: typo.
Joined: Mar 2002
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From: Seat 1A
Your regulator will dictate what is acceptable. For example (Australian AIP):
ENR 1.5 Section 1.21.2
Can't descend on Final until "established", defined as:
Note: “Established” means being within half full scale deflection for the ILS, VOR and GNSS, within ±5° of the required bearing for the NDB, or within ±2NM of the DME arc.
Here here!
ENR 1.5 Section 1.21.2
Can't descend on Final until "established", defined as:
Note: “Established” means being within half full scale deflection for the ILS, VOR and GNSS, within ±5° of the required bearing for the NDB, or within ±2NM of the DME arc.
Originally Posted by Pineteam
5 degrees in our SOP which is ridiculously low considering how much the needle fluctuates in the real world. In the sim it's doable tho,
Joined: Jun 2000
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From: Australia
Anecdotal evidence reveals the New Zealand CAA tolerance in their particular manual for a DME arc, is plus or minus 2.5 nm. That seems reasonable. Yet in flight tests, some Examiners/ ATO's fail a candidate if he is outside plus or minus 1.5 NM which is ridiculous. If true, each Examiner seems to have his own ideas..
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From: On the Beach
Anecdotal evidence reveals the New Zealand CAA tolerance in their particular manual for a DME arc, is plus or minus 2.5 nm. That seems reasonable. Yet in flight tests, some Examiners/ ATO's fail a candidate if he is outside plus or minus 1.5 NM which is ridiculous. If true, each Examiner seems to have his own ideas..
