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1. 04:54 AM - Panel Design - UPS/Garmin merger Question (Bob Gibson)
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| Subject: | Panel Design - UPS/Garmin merger Question |
--> Avionics-List message posted by: "Bob Gibson" <bgibson@scientech.com>
Hi Folks,
(Background)
I'm a "newbie" to this group (just joined on Friday). I have a 1972 AA5
Traveler, and I have sold every "box" in the avionics stack, as part of the
overall upgrade to the aircraft. I am not an A&P, but I have done two
avionics upgrades to this plane since 1985, and I have done the lion's share
of the installation. The last upgrade included an RST audio panel (which I
assembled from a kit) with marker beacons, two NAVs, two Localizers, two
Glideslopes, two Coms, and Encoder for the existing transponder. My radio
shop bill (for reviewing and approving my work) was $250.
Well, all that stuff is gone, so I'm trying to decide on what should replace
it. One of the more impressive installations I have seen is by a guy in
Alabama, named Hal Beauchene. Hal is a military helicopter instructor and
A&P. He has the "full UPS" package, including audio panel (mounted to the
left of the stack), the Multifunction Display, GX-60, SL-30 and Transponder.
The biggest problem I see with that arrangement is that he had to cut the
panel face open another .25 inches downward to fit everything.
I have flown Grummans equipped with the Garmin GNS430, and they seem like a
fine unit, too. The color display adds a lot of information over the GX-60,
for example.
The CNX-80 is also appealing, because of so many features in such a small
footprint, and the "remote" mounted transponder box, which eliminates some
of the clutter in the vertical stack. I researched the archives here
(perhaps not as effectively as i could), but found little on the CNX-80.
I would like to design a replacement panel which gives me as much utility as
possible, with the following constraints:
- I want everything to fit in the avionics stack, including the audio panel.
Stack opening is 9.75 inches.
- I would like all the boxes in the stack to be "matching" (i.e., same
manufacturer)
- Audio panel must have 4-place stereo intercom and marker beacons.
- I want two independent boxes with IFR GPS approach capability, and WAAS
path upgrade for at least the "No. 1" box.
- The "No. 1" GPS must have a color display, and must be able to interface
to a JPI EDM 700 with fuel flow data.
- I do not require two VOR receivers.
- No ADF, no DME.
One "Example" stack that would work for me is:
- Garmin GMA 340 Audio Panel
- Garmin GNS 430 (IFR approved GPS, VOR, Localizer, Glideslope, Com, Color
display)
- Garmin GNC 420 (IFR approved GPS, Com, Color display)
- GTX 327 Transponder
Your suggestions on "stack design" are welcome!
Finally, I know that UPS and Garmin have merged, but are there any problems
in getting these boxes to "talk" to each other? For example, make the "No.
1" box a CNX-80 and the "No. 2" box a GNC420?
Thanks,
Bob Gibson
AA5 - N5826L
Clearwater Airpark (CLW)
Mobile 727.644.8361
Web www.geocities.com/n5826l
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