Today's Message Index:
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1. 06:05 AM - Garmin 430W Software (Owen Baker)
2. 06:50 AM - Equipping experimental for IFR (Owen Baker)
3. 09:51 AM - Re: lm7321 substitute (Robert L. Nuckolls, III)
Message 1
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| Subject: | Garmin 430W Software |
5/17/2014
Hello Bill Bradbury, Start with getting a copy of the 400W Series Pilot
Guide & Reference and sitting down in front of an installed 430W. (The
trainer version that I have installed on my computer will not allow me
to check its installed software.)
Using this Guide you can:
1) On page 149 select the AUX Page Group.
2) On page 149 select the Utility Page.
3) On page 158 select the Software Versions Page.
4) On page 164 see a discussion of the Software / Database Versions.
I found eight different sets of software and their versions on my 430W:
MAIN 2.0, GPS 2.4, COM 4.00, VLOC 2.06, G/S 2.03, IOFPGA 2.2, STAGE 1
2.01, and STAGE 2 2.00.
I carried this listing over to our local qualified Garmin dealer /
servicer and asked them to tell me if I was up to date. After a fair
amount of struggle and searching they told me that:
MAIN is required to be updated to 3.30 with an optional update to 5.3.
GPS is required to be updated to 3.20 with and optional update to 5.0.
Since I am not currently using my 430W for IFR flight purposes I am
deferring any software updates until that need arises.
I hope that this helps. Any other questions?
=98OC=99 Baker
'O C' Baker says "The best investment you can make is the effort to
gather and understand information."
==============
Time: 10:16:10 AM PST US
From: "Bill Bradburry" <bbradburry@verizon.net>
Subject: RE: AeroElectric-List: Re: Equipping experimental for IFR
OC,
Where do I find the procedures to "poke around digitally inside your
430W"?
I would like to check to see what software is loaded in my unit.
Thanks,
Bill
Message 2
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| Subject: | Equipping experimental for IFR |
5/17/2014
Hello Curt Stein, You wrote:
1) =9CIn the case of the pitot static and transponder, they get
tested every
24 months. Is this test different for VFR versus IFR?=9D
The answer to your question is found in 14 CFR Sections 91.411 and
91.413 that require these inspections, and the related Appendices E and
F of Part 43. (All available at the FAA web site.)
A) 91.411 applies to any operation under IFR in controlled airspace.
B) 91.413 is a bit more complicated. Please see that section and its
referenced section 91.215 for details.
C) It is unfortunate that the term =9Cpitot static and transponder
checks=9D has come into common use when describing the tests
required by 91.411 and 91.413. A review of those sections and the
relevant appendicies of Part 43 shows that no test of the pitot system
is required, but that extensive and detailed tests of the static system
and transponder are required to include the altimeter viewed by the
pilot, and the automatic altitude reporting system which consists of the
encoder and the transponder.
I guess that we are just stuck with that unfortunate common terminology,
but I strongly urge all EAB builders and pilots to become familiar with
the actual requirements of the regulations, including the technicians
and organizations that are permitted / required to perform the tests
involved.
2) =9CIs it required to have a backup instruments to the EFIS ? I
know it's the better
practice to have those, but are they required in experimental?=9D
The regulatory requirements for EAB instruments have been covered in our
previous exchange postings and the attached document.
=98OC=99
'O C' Baker says "The best investment you can make is the effort to
gather and understand information."
================
Time: 04:49:40 AM PST US
Subject: Avionics-List: Re: Equipping experimental for IFR
From: "curts63" <curt.stein@verizon.net>
Ok, thanks. In the case of the pitot static and transponder, they get
tested every
24 months. Is this test different for VFR versus IFR?
For the Garmin 430W, I've heard that this requires a ground test and
flight test?
Is this something that needs to be repeated on a standard interval?
Is it required to have a backup instruments to the EFIS ? I know it's
the better
practice to have those, but are they required in experimental?
Curt
Message 3
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| Subject: | Re: lm7321 substitute |
I'm working on a drawing that uses a R-t-R output op
amp in an inverting configuration which does two good
things for us. (1) We can add pots that set gain and
offset such that the builder can exploit ALL the
bars in the trim indicator display even if the pot doesn't
run full mechanical stroke and (2) we can drive any
number of indicators from the single amplifier.
---------------
Sorry I dropped the ball on this. I'm wrestling with
a computer with a dying operating system . . . it's
had some 'quirks' for a couple years but I'm now
contemplating a new build with Win7 . . . not exactly
the way I'd like to blow away a day's worth of praying
over a new computer!
In any case, here's the drawing
http://tinyurl.com/nmftvll
By eliminating the not-well-considered goal of
rail-to-rail input and output, crafting an inverting
amplifier with R-t-R output offers some features
cited above that seem to make it a better approach.
Further, all the parts are available as thru-hole.
This would be a candidate for packaging in a 15-pin
d-sub housing which is what I've illustrated
with pin numbers arbitrarily assigned to a board-edge
connector . . . obviously, one might perf-board this
circuit as well . . .
Bob . . .
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