I am doing a Garmin G3X Touch system in my RV-14, with the higher end of average number of remote avionics. The sub panel provides some space to work with and I know that most people seem to build rails to connect the panel and sub panel lower flanges to gain some more real estate. But I think I'll still come up short.
I need to mount the following items remotely:
* VP-X
* IBBS backup battery
* GD-40 CO detector
* GEA 24 engine monitor
* GAD 29 ARINC 429 interface
* GSU 25 primary ADAHRS (the secondary one can live on the back of the MFD but I think it's preferable to have the primary mounted directly to the airframe)
* GMA 245R audio panel
* GTR 20 comm radio
* GTX 45R transponder, in mounting tray
I will have a GTN 650 and GMC 507 in the center stack of the panel. That may leave some room for the audio panel, comm radio, and/or transponder to be mounted in the center stack but offset behind the panel. Has anyone done that or had thoughts against it?
I know that some people put the transponder on the battery angles in the tailcone, between the baggage bulkhead and the bell crank. Does anyone have pictures of this installation? It makes sense because it will shorten the length of transponder antenna cabling, although I think Garmin wants a certain minimum length so that may not be an advantage. I have a couple of extra nut plates on those battery angles (installed in the extra locations used in the RV-10 as called out in the RV-14 plans) because I was going to put my smoke oil pump there, but I ended up mounting that on the side of the tank to make plumbing easier. I'm not sure if those will be a help or a hindrance to putting the transponder tray there.
I'm thinking about putting the GEA 24 on the forward side of the sub panel since most of its wires go to the firewall. Has anyone done that? I know it won't be easy to work on it because I'll have to lie on my back under the panel, but it seems to me that any work I have to do on the engine monitor connections will be tedious regardless of where the GEA 24 gets mounted.
I can probably put the GSU 25, GAD 29, and maybe GD-40 on the aft side of the left sub panel, the IBBS in the vicinity of the map box cutout on the right side, the VP-X on rails on the right side, and have room for maybe one big box on rails on the left side if needed (transponder, comm radio, or audio panel).
All ideas, stories, and pictures are welcome. I am ready to build my wiring harness as soon as I figure out where all the connectors will need to end up. Thanks, everyone!
I need to mount the following items remotely:
* VP-X
* IBBS backup battery
* GD-40 CO detector
* GEA 24 engine monitor
* GAD 29 ARINC 429 interface
* GSU 25 primary ADAHRS (the secondary one can live on the back of the MFD but I think it's preferable to have the primary mounted directly to the airframe)
* GMA 245R audio panel
* GTR 20 comm radio
* GTX 45R transponder, in mounting tray
I will have a GTN 650 and GMC 507 in the center stack of the panel. That may leave some room for the audio panel, comm radio, and/or transponder to be mounted in the center stack but offset behind the panel. Has anyone done that or had thoughts against it?
I know that some people put the transponder on the battery angles in the tailcone, between the baggage bulkhead and the bell crank. Does anyone have pictures of this installation? It makes sense because it will shorten the length of transponder antenna cabling, although I think Garmin wants a certain minimum length so that may not be an advantage. I have a couple of extra nut plates on those battery angles (installed in the extra locations used in the RV-10 as called out in the RV-14 plans) because I was going to put my smoke oil pump there, but I ended up mounting that on the side of the tank to make plumbing easier. I'm not sure if those will be a help or a hindrance to putting the transponder tray there.
I'm thinking about putting the GEA 24 on the forward side of the sub panel since most of its wires go to the firewall. Has anyone done that? I know it won't be easy to work on it because I'll have to lie on my back under the panel, but it seems to me that any work I have to do on the engine monitor connections will be tedious regardless of where the GEA 24 gets mounted.
I can probably put the GSU 25, GAD 29, and maybe GD-40 on the aft side of the left sub panel, the IBBS in the vicinity of the map box cutout on the right side, the VP-X on rails on the right side, and have room for maybe one big box on rails on the left side if needed (transponder, comm radio, or audio panel).
All ideas, stories, and pictures are welcome. I am ready to build my wiring harness as soon as I figure out where all the connectors will need to end up. Thanks, everyone!