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Old 01-13-2020, 06:35 PM
Pilot135pd's Avatar
Pilot135pd Pilot135pd is offline
Join Date: Jan 2019
Location: Ben Wheeler, TX
Posts: 739

Originally Posted by jamesdavid View Post
  • Should I put the GAD 29 on the Avionics bus, or the Main Bus? It is only needed for the Avionics (GNX 375 and GNC 255), but other examples placed it on the Main bus...
  • I have a breaker and a switch for the GAP 26 Pitot Heat. Any reason not to just use a Switch Breaker?

Thoughts and input appreciated...
Not Garmin related just by flight experience, is that TO/GO button the same thing as your GPS miss approach sequencer? I think it says that button and your Autopilot Disconnect button are both close together. During simulator training I remember we had a guy who in the heat of the training kept disconnecting the autopilot during a low IFR approach instead of cycling the GPS to do the miss approach sequence. Just a though in case your system works the same way.
RV-8 N52VM: Dynon D-180, Autopilot, Titan 0-360A1A, Hartzell C/S, INS-429 IFR, WingX & Stratux for backup & ADS-B IN. Enjoying life while building a FREE campsite for pilots

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Old 01-13-2020, 06:56 PM
terrye terrye is offline
Join Date: Feb 2010
Location: Vancouver, BC, Canada
Posts: 799
Default Thoughts on Panel Upgrade Ideas

Originally Posted by jamesdavid View Post
Now that I know the big-ticket items, I am trying to figure out the best way to organize switches and breakers. This is what I have come up with. Apart from the general layout, some of the specific questions I still have are:
I think your G5 and G3X screens are mounted too far left. You should check the location of the platenut clips attached to the top fuselage skin and longeron for interference.
Terry Edwards
RV-9A (Fuselage)
2019/2020 VAF Contribution Sent
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Old 01-14-2020, 01:14 AM
jamesdavid jamesdavid is offline
Join Date: Nov 2017
Location: Tempe, AZ
Posts: 20

@Jim Frisbie: Thanks for the reminder about the CO Detector. I currently use the paper card type, but with your prompt I see that there are nice looking devices that integrate with the G3X. It seems like the GD-40 is liked by many. Do you have a favorite device?

Also, I am out of RS-232 ports on PFD-1. Am I able to hook it to an RS-232 input on a second GDU MFD and have the data available on the PFD?

@Pilot135pd: Great point. Perhaps the TOGA above the throttle under the MFD--easy to press when going full throttle for go around.

For the AP Disconnect somewhere else ... I would love it on the stick, but I do not want to get a different grip and don't know if mine could be easily modified. Where else do people like to put AP Disconnect buttons?

@terrye: Thanks for this. Have nudged things around based on pictures of similar panels but will double check next time I am at plane.
RV-6A N858SB (Bought)
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Old 01-14-2020, 07:25 AM
Southern Pete Southern Pete is offline
Join Date: Jul 2015
Location: England
Posts: 48

I would suggest you don't have any switches below the displays, put them all above. They are too easy to kick and/or catch your clothing on as you climb in/out. Mount everything as high up as possible.
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Old 01-14-2020, 03:09 PM
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agirard7a agirard7a is offline
Join Date: Aug 2009
Location: Newport, RI
Posts: 672
Default Switches

Don’t agree at all with the switch’s above. Bellow is normal and works fine.
I would suggest putting the flap switch,(paddle switch) AP servo power, and AP activation/deactivation switch above the throttle within index finger reach while hand on the throttle. Maybe a dummy light for the fuel pump. I also have a light for low oil p., and alternator out. Group the lights together if you use them.
Al Girard, Newport, RI

Last edited by agirard7a : 01-14-2020 at 03:18 PM.
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Old 01-18-2020, 08:24 PM
jamesdavid jamesdavid is offline
Join Date: Nov 2017
Location: Tempe, AZ
Posts: 20

Thinking through what happens with this LRU block diagram:

In the event that any single LRU fails:

Not sure if this is 100% correct, but I hope to figure out the behavior on paper before finalizing this.

Posting for discussion.
RV-6A N858SB (Bought)
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