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PA-18 Certified Panel Options Theoretical Discussion

sj

Staff member
Northwest Arkansas
Current situtation:
1735249057397.webp

So if I guy who has a certified super cub were to come into some money by reducing the number of airplanes he owned and he could finally put some money in the panel of the PA18, what's the best way to go?

He wants:
ADSB in/out (1090)
Moving map GPS (built in)
NIce Comm and intercom
Some kind of horizon
Get rid of 14 EI gauges
4cyl engine monitoring


One STC I looked at made it appear the G3X was approved for the Super Cub. That seems to cover all the bases. Has anybody done that on a certified PA18?

I'm not crazy about the G5's because the screen is so dang small.

Would like to have an AP in this plane also - although none certified that I know of as of now.

I know that the world is your oyster if you are experimental, but I'm not...

sj
 
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yes, found pic
Garmin® G3X Touch system w/full digital EFIS
– Digital airspeed IAS/TAS/GS
– Digital altitude PA/DA/GPS
– Digital attitude Indicator
– Digital incliminometer
– Digital directional gyro
– Digital trim indicator
– Background synthetic vision
– GPS maps, VFR Sectional charts, IFR charts
– Terrain warning (visual and audible)
– GPS navigation (waypoint/heading/track)
– Digital OAT (outside air temperature)
Garmin® GTR 20 com radio
Garmin® GTX 345R transponder (ADS-B In/Out & Free WX)
Garmin® GEA 24 engine analyzer/monitor
– Digital tachometer
– Digital oil Pressure/Temp
– Digital CHT monitor
– Digital EGT monitor
– Digital fuel management computer
Backup analog indicated airspeed gauge

since added GDL51R & GA24 antenna because hard for me to fly without music
 

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You trying to fly IFR?

If no
I’d drop 2 GI275s, one a attitude indicator (more like a mini PFD) and a second one for engine/fuel instruments plus a GNX375 (com/nav/xpdr/adsb)

The above will also output ADSB traffic and weather to foreflight

Keeping analog altimeter and airspeed
 
You trying to fly IFR?

If no
I’d drop 2 GI275s, one a attitude indicator (more like a mini PFD) and a second one for engine/fuel instruments plus a GNX375 (com/nav/xpdr/adsb)

The above will also output ADSB traffic and weather to foreflight

Keeping analog altimeter and airspeed
Does the GNX375 come with a COM?
 
You trying to fly IFR?

If no
I’d drop 2 GI275s, one a attitude indicator (more like a mini PFD) and a second one for engine/fuel instruments plus a GNX375 (com/nav/xpdr/adsb)

The above will also output ADSB traffic and weather to foreflight

Keeping analog altimeter and airspeed
Aren’t the 275’s primary for airspeed and altimeter? You could do one attitude with airspeed and alt, and one for engine monitor. I think KevinJ had a picture of a panel like that
 
Aren’t the 275’s primary for airspeed and altimeter? You could do one attitude with airspeed and alt, and one for engine monitor. I think KevinJ had a picture of a panel like that
I find them hard to read like the G5. Great instruments, but I’m too old to have them as primary. They will display almost anything.

sj
 
I’ll have to look it up, but there is one with the nav/com/adsb


As for the analog, I’d at least want to keep airspeed and altimeter and stuff happens and I wouldn’t want zero panel if my electrical system had a issue
 
I’ll have to look it up, but there is one with the nav/com/adsb


As for the analog, I’d at least want to keep airspeed and altimeter and stuff happens and I wouldn’t want zero panel if my electrical system had a issue


There isn’t a 3 in one sadly

So GTX375 navigator (with ADSB if you need ADSB)
And a GTR225 com

The nice thing is garmin plays well with garmin, so my understanding is you can even get a flight director and full nav display on the 275 from that 375
 
You trying to fly IFR?

If no
I’d drop 2 GI275s, one a attitude indicator (more like a mini PFD) and a second one for engine/fuel instruments plus a GNX375 (com/nav/xpdr/adsb)

The above will also output ADSB traffic and weather to foreflight

Keeping analog altimeter and airspeed
SJ, have you flown any GI275’s? I find them easier to read than the G5 due to the resolution.

If you install 2 GI275’s you don’t need any analog instruments. Actually, if one is a ADI and one is a MFD then it’s IFR legal. Add a third for EIS…
Backup batteries included.
 
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This is the stack in my ex C170B. GNX 375, GTR 255 Nav/com. Then 225 Com only. I like two radios. Audio panel on top and a push button to switch the Indicator Head between GPS and VOR/ILS. I was very happy with the operation of the 375 and the radios.

I think for GPS with built in approaches and ADS B in and out in a small package the 375 is great. Terrain, traffic and wx included. Obviously you don’t strictly need the audio panel if there’s only one comm. But it does allow you to get phone calls!
 

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Everything in CCJoe’s panel is available for a certified cub. Well, aside from the A/P, currently….

….have you all submitted your SuperCub GFC500 approval request to Garmin this month? (And every month) They still count…

IMG_8666.webp
 
Does the GNX375 come with a COM?
The GNC355 is a GPS Navigator/Comm
The GNX375 is a GPS Navigator/ADSB in/out transponder

If you have an existing transponder but no navigator the GNC355 is a nice addition to a panel - new modern comm and certified GPS Navigator.

If you are revamping complete the GNX375 lends itself as a better fit, using a remote comm interfaced via the G3X.
 
SJ, have you flown any GI275’s? I find them easier to read than the G5 due to the resolution.

If you install 2 GI275’s you don’t need any analog instruments. Actually, if one is a ADI and one is a MFD then it’s IFR legal. Add a third for EIS…
Backup batteries included.
That’s why I was saying if it’s not IFR, drop one as a PFD/AI and the lower one as your engine/fuel/etc


I’d still run steam airspeed and altitude regardless of the regs, it doesn’t weigh much, he already has the instruments, and I’m a believer of crap happens
 
Although I hope it will be many years before I sell it, not taking resale into consideration would be a mistake.

For me, I’m pretty happy with an iPad and an oil pressure/ temp gauge as that’s all I ever get to see from the back where I usually sit…

sj
 
Probably biggest return on investment would be a G3X with EIS. Everyone now wants to watch their temps and the 10” screen is impressive.
Beyond that is just making the panel clean.
 
I don't have a Super Cub, just a bunch of lowly J-3s and a J-4. But if I did have a Super Cub it would have original instruments plus a Garmin hand-held plugged in to ship's power. I currently prefer the earlier color variants - 295 and 496 - but any easily programmable version with giant bearing and track numbers would work for me.

My Decathlon is restricted to VFR, but it would make a better IFR platform than the Super Cub, if only because it would not be clogging up the airways at 80 knots. Maybe someday the ACA folks will get IFR on the type certificate, but knowing them it would be restricted to metal spar versions.

Here is my optimal panel for that bird. I spend most of my time looking out the window, of course, so do not need a really sophisticated moving map, and if I ever needed thunderstorm avoidance, the 496 with a subscription is better than the best radar I ever flew behind. I maintain IFR proficiency in this bird shooting six approaches and a hold - three of those approaches are done with no gyros at all - just the 295 with horizontal flight director and glide slope all the way to the deck, and the King Loc/GS instrument as back up. Could not ask for an easier way to fly an ILS.

444W Inst Pnl.webp
 
Ya... ummmm, the gnx 375.. Oops i meant the new com radio.
Turns out while garmin built this unit with an on board intercom, it wasn't actually activated, the avionics shop guys told me the circuit isn't live so even though my buddy paid for that feature it does not work. We're needing to add a ps intercom as a sub panel...
I'm not a garmin fan boy.

Does anyone here know why the intercom function doesn't work...
 
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No, but the GTR-200 internal intercom is spectacular! We used it in a 450 Stearman open mic at 37” and 2300 rpm. Worked great!

I have heard the -200 replacement has the intercom locked out as well. Glad I stocked up with a spare.
 
The certified GTR-205 replacement for the certified GTR-200 had a paperwork approval holdup for the integrated intercom. It’s not enabled as it’s not approved yet. It does have reserved pins for a future software update.
The experimental -205 has a working intercom like the GTR-200 did.
 
I’m too looking for a big upgrade on my panel, certified PA18, I have been thinking on the garmin G3x with EIS so I can get rid of the engine and oil instruments that have also been not to realible lately …..
I been looking for G3x’s at spruce and gulf coast avionics and they list only experimental units… 🤷🏻‍♂️ I haven’t found any certified ones so I could have an idea of as how much this would be….
SJ Have you done the job already??

Below is my actual panel, I have a hand held Garmin 660 hanging on the right….

Oh one question, if anyone knows… I have a Mid Continent digital clock with USB charging outlets that went really dim, numbers are hardly noticeable, and the +/- Controls don’t do nothing, anyone with this same clock knows what could be going on or another way to up bright the screen?..

Current situtation:
View attachment 109763

So if I guy who has a certified super cub were to come into some money by reducing the number of airplanes he owned and he could finally put some money in the panel of the PA18, what's the best way to go?

He wants:
ADSB in/out (1090)
Moving map GPS (built in)
NIce Comm and intercom
Some kind of horizon
Get rid of 14 EI gauges
4cyl engine monitoring


One STC I looked at made it appear the G3X was approved for the Super Cub. That seems to cover all the bases. Has anybody done that on a certified PA18?

I'm not crazy about the G5's because the screen is so dang small.

Would like to have an AP in this plane also - although none certified that I know of as of now.

I know that the world is your oyster if you are experimental, but I'm not...

sj

Current situtation:
View attachment 109763

So if I guy who has a certified super cub were to come into some money by reducing the number of airplanes he owned and he could finally put some money in the panel of the PA18, what's the best way to go?

He wants:
ADSB in/out (1090)
Moving map GPS (built in)
NIce Comm and intercom
Some kind of horizon
Get rid of 14 EI gauges
4cyl engine monitoring


One STC I looked at made it appear the G3X was approved for the Super Cub. That seems to cover all the bases. Has anybody done that on a certified PA18?

I'm not crazy about the G5's because the screen is so dang small.

Would like to have an AP in this plane also - although none certified that I know of as of now.

I know that the world is your oyster if you are experimental, but I'm not...

sj

Current situtation:
View attachment 109763

So if I guy who has a certified super cub were to come into some money by reducing the number of airplanes he owned and he could finally put some money in the panel of the PA18, what's the best way to go?

He wants:
ADSB in/out (1090)
Moving map GPS (built in)
NIce Comm and intercom
Some kind of horizon
Get rid of 14 EI gauges
4cyl engine monitoring


One STC I looked at made it appear the G3X was approved for the Super Cub. That seems to cover all the bases. Has anybody done that on a certified PA18?

I'm not crazy about the G5's because the screen is so dang small.

Would like to have an AP in this plane also - although none certified that I know of as of now.

I know that the world is your oyster if you are experimental, but I'm not...

sj

IMG_5802.webp
 
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