[Oz-mooney] To ADF or not to ADF

Sun Jun 8 02:05:59 PDT 2008

Stephen,

If you get the BF Goodrich WX500 storm scope you can display it on your 530.
I can do it on my 430 although on a separate page ie it is not overlaid on
the map.

I will ask Andrew Spall what he does as I don't think he has ADF in his
Lancair and I am pretty sure it is not in the Columbia's ( I refuse to call
them Cessna!) either.

The KR57 is a reasonably slim line ADF but about USD2500 second hand. What
did you find for $1600 as I might need to change mine too.

Michael Keating

From: oz-mooney-bounces at mooney.org.au
[mailto:oz-mooney-bounces at mooney.org.au] On Behalf Of Stephen Gale
Sent: Sunday, 8 June 2008 6:20 PM
To: 'Australian Mooney Pilots Assocation List'
Subject: RE: [Oz-mooney] To ADF or not to ADF

Bugger, bugger bugger! That's one 3.25" hole and a whole lot of panel space
that I had in mind for much more interesting stuff. (A storm scope for
instance!)

I do wonder though, what do all of those flashy Cirrus guys do? I have not
seen a single ADF in any of them! I am guessing they mostly just don't
comply.

Steve

-----Original Message-----
From: oz-mooney-bounces at mooney.org.au
[mailto:oz-mooney-bounces at mooney.org.au] On Behalf Of Skip Hodgson
Sent: Sunday, 8 June 2008 3:00 PM
To: Australian Mooney Pilots Assocation List
Subject: Re: [Oz-mooney] To ADF or not to ADF

1.  Not even as simple as that Stephen.  Perhaps Peter has different
considerations because of his US license but for those of us "simple
Aussies" the regulations are that you will ALWAYS need an alternate unless
the destination weather is VMC.  Have a look at the CAAP that Ian Mallett
sent us
http://www.casa.gov.au/download/CAAPs/ops/179a_1.pdf

If you plan to Birdsville and the weather is any worse than full VMC you
will need fuel to get to Longreach (the nearest VOR over 300 miles away).
This requirement is so onerous and RAIM errors so rare that I strongly
suspect a lot of folks with C129 equipment are not complying but when the
day comes that a RAIM error exists due to a failed satellite there will be a
lot of sweat and tears shed.

2.  Even with the latest C146 approved GPS equipment you will not be able to
fly DME/GPS arrivals (at non VOR airports) because the regs state that you
must use ground-based nav aids for azimuth guidance.  There is no point
arguing whether this is silly;  it is simply "the rules" as one of our
members discovered at Shepparton during a recent IFR check ride.

3. Some locations only transmit the ATIS on LF/MF band so you need an ADF
receiver to hear them (such as Richmond and Williamtown - and until recently
even Camden).  There are doubtless other examples.

4.  At Melbourne for example the Epping NDB is available for voice
transmission in emergencies.  Without the ADF you would not be able to use
this.

I would think if your existing ADF is TSO approved, don't throw it out yet.

Regards
Skip

Peter Rejto wrote: 

Hi Stephen, 

I believe from a previous posting you indicated that you were buying a 
used non-WASS upgraded Garmin. In that case I would not advise you to 
ditch your ADF. Without the ADF, if you are forced to pick an 
alternate (and assuming you want to be legal), then your alternate 
cannot be another GPS approach, but would be limited to a VOR or ILS 
approach. With ADF on board you would have a lot more choices! Of 
course, if you arrive at your "legal" alternate, and the GPS approach 
is available there is no reason you cannot fly it instead of the ADF 
(or other) approach. Now if you decide to upgrade your Garmin 530 to 
WASS then you can get rid of the ADF with no worries....

Peter Rejto
N201CM YHOX

----- Original Message -----
From: Stephen Gale  <mailto:stephen at elektrika.com.au>
<stephen at elektrika.com.au>
Date: Sunday, June 8, 2008 9:28 am
Subject: [Oz-mooney] To ADF or not to ADF
To: 'Australian Mooney Pilots Assocation List' <oz-
mooney at mooney.org.au>

Well folks, I am now the proud owner of a lightly used Garmin 530 
($8000US), I now just need a suitable indicator (more sleepless 
ebay trawling
ahead).

What is the general consensus regarding the merits retaining a crusty
old King ADF? I cant say I am excited about leaving that crappy old
thing when the rest of the avionics will be spiffy and new, but am I
ditching this old girl because she is just a little wide on the 
hips? A
newish digital King is about $1600 which I am not excited about 
either,but maybe in Australia there is still some merit in 
retaining this
1940's technology. One of the real uses I had for it was storm 
finding,but I am looking to get a storm scope (Insight or G3) 
anyway, so that
application goes out the window.

Looking forward to my elders wisdom!

Cheers,
Steve Gale
1977 M20J (still with ugly paint, but at least with new engine and 
soonto have new avionics)

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