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ADF - Deactivation

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Old 23rd February 2013 | 23:16
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ADF - Deactivation

I have just been told that Boeing is offering to deliver some new aircraft to us with ADF deactivated. I feel overjoyed as an AMT. I was just wondering if this is a new option or if your operators have had ADF deactivated on any of your fleets and how you feel about it?. Ours is B763F.
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Old 23rd February 2013 | 23:56
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From: engineer at large
no NDB approaches in your future?
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Old 24th February 2013 | 04:07
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Suppose not for this fleet. Just one fleet type out of many so far. How Many NDB approaches are still there for a global carrier? Last one I was on was over a decade ago and it was Luanda Angola.
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Old 24th February 2013 | 04:18
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I was told a few years ago that ADF was now an option on Airbus aircraft.....
 
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Old 24th February 2013 | 06:16
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777, delivered without ADF for about 2 years now.
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Old 24th February 2013 | 07:16
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We had 777's delivered 5 years ago without ADF'S and Airbus delivered 4 years ago without ADF's.

Very annoying not being able to listen to radio stations over Oz..
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Old 24th February 2013 | 08:45
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We had 777's delivered 5 years ago without ADF'S and Airbus delivered 4 years ago without ADF's.
How would that effect flight planning on ETOPS for "suitable" airports en route if those airports were only served by an NDB and the aircraft didn't have an ADF and also the crew were not certified to use an NDB for an instrument approach?
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Old 24th February 2013 | 09:51
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In the days of anything above ETOPS 120 this shouldn't be an issue - all the classic ETOPS alternates will have something more than an NDB approach. That said I still prefer to have one or better two ADFs available to me
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Old 25th February 2013 | 02:01
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Very annoying not being able to listen to radio stations over Oz..
That's what also would annoy me! Almost no place has got an NDB approach nowadays, not the ones a 777 or an A32S would use anyway!
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Old 25th February 2013 | 02:46
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On an aircraft for a trunk route maybe but for all the Regionals & smaller mainliners ADFs are still required (try flying in northern Canada). Bombardier are still offering dual ADFs on their CSeries and the option's still part of the Rockwell Collins Vision Flight Deck.

Last edited by ICT_SLB; 25th February 2013 at 02:47.
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Old 25th February 2013 | 04:36
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Having no ADF's fitted doesn't effect ETOPS at all. In fact we are no longer allowed to do NDB approaches in my company.

RNAV, ILS VOR etc is all you need and has the world wide airports covered well enough without NDB's
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Old 25th February 2013 | 04:57
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Good thing we still make such a production of learning ADF procedures during initial IFR training and all flight testing

The last time I did a for real NDB in IMC conditions with only the ADF for track information (ie no GPS) was 1994. The next time I will be required to do a ADF approach will be in my next recurrent training and pilot proficiency flight test in March 2013

Last edited by Big Pistons Forever; 25th February 2013 at 04:58.
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Old 25th February 2013 | 05:13
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Almost no place has got an NDB approach nowadays, not the ones a 777 or an A32S would use anyway! 24th Feb 2013 10:51
Just did an ADF approach in Accra 3 months ago because the VOR went down.
That is not the first time that has happened to me and I am talking worldwide.
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Old 25th February 2013 | 06:06
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All 737s are RNAV equipped. Any airport accepting medium jets with only an NDB will surely have an RNAV approach by now? That's not a rhetorical question. Also, does anybody now fly an NDB or even a VOR without an FMC overlay using LNAV or the equivalent?
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Old 25th February 2013 | 08:26
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Exactly, if the Airport in question has an NDB approach most modern Aircraft can build any overlay and fly it in LNAV / VNAV.


If they don't have this capability then they probably still have an ADF receiver !
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Old 25th February 2013 | 09:13
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But in that case, you'd still need an ADF receiver for the raw data! We fly overlays too - occasionally we'll use HDG SEL but it's on the decrease as most of the time the map is pretty good, even in the non-GPS a/c.

Last edited by bucket_and_spade; 25th February 2013 at 09:14.
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Old 25th February 2013 | 09:24
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Poland, non radar, many of the airports have both a VOR and an NDB at the field...
and with two separate procedures one based on the NDB one on the VOR, very handy if/when one of the two is down for MX...

there are many of the italian airports where this can be useful as well.

obviously we will be flying in L-NAV but until these places draw out some nice RNAV / RNP transitions for us to play with i still need to back up with raw data below MSA.
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Old 25th February 2013 | 09:50
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Also, does anybody now fly an NDB or even a VOR without an FMC overlay using LNAV or the equivalent?
Me. No GPS backup means we can't.

Last NDB I flew, we were asked by ATC if everything was alright. Needles were pointing where they should, but coastal refraction had us 30 degrees off track! Sooner they go, the better.
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Old 26th February 2013 | 06:44
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As stated, with GPS back up you don't need an operational NDB to fly an NDB approach.
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Old 26th February 2013 | 07:09
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CX - 744ERFs, -8Fs and latest 777s are not fitted with ADFs, plus no longer do NDB approaches or circling for that matter.
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