Replacing steam on a certified aircraft

Aviation chatter - For ALL Pilots and Aviation Enthusiasts

Moderator: Moderators

mi'cmaq
Reaching altitude
Posts: 237
Joined: Tue Aug 31, 2021 12:40 pm
Closest Airfield: FASH
Location: Somerset West
Has thanked: 4 times
Been thanked: 82 times

Replacing steam on a certified aircraft

Unread post by mi'cmaq »

Enquiring for a friend whose vacuum pump has packed up on his certified two place aircraft

He would like to chuck out the old steam gauges along with the vacuum pump, regulator and hoses and replace them with a modern EFIS from MGL or Dynon ; also his JPI engine monitor has started dropping some digits and a modern EFIS would sort out that problem as well

Is there any way to do this if the aircraft is only for private VFR use
User avatar
Whirly
10000 and still climbing
10000 and still climbing
Posts: 16336
Joined: Tue Nov 11, 2003 3:25 pm
Closest Airfield: Mossel Bay
Location: Mossel Bay
Has thanked: 1560 times
Been thanked: 2190 times

Re: Replacing steam on a certified aircraft

Unread post by Whirly »

MGL not, not sure about Dynon. He could look at the certified Garmin G5 or uAvionix AV30C, I like both, and they are not too expensive. However, it will take lots of paperwork and plenty moola to do, CAA, is involved.

Non certified, NTCA, is much easier. I flew with two Garmin G5s in my previous helicopter and now have 2 AV30Es installed in my current one. The G5s have a built-in GPS, the AV30s not (my Garmin 760 is connected to them though) , but I see the numbers better on the AV30s, they work great for me. I also added the temp probes, so now I see very accurate OAT as well as instant DA figures.

Whirly.
Not every home needs a dog but every dog needs a home.
User avatar
StressMerchant
1k poster
1k poster
Posts: 1592
Joined: Mon Jul 03, 2006 8:57 am
Closest Airfield: Cab
Location: The Matrix
Has thanked: 215 times
Been thanked: 388 times

Re: Replacing steam on a certified aircraft

Unread post by StressMerchant »

It's worth looking to see if the aircraft type is covered uner the STC-AML (Approved Master List) of the equipment manufacturer. If the kit is already covered under the AML, you may be able to get free use of the STC when buying the equipment. Not all National Airworthiness Authorities recognise STC-AMLs, but it's worth a read. If nothing else it may save some time with the installation instructions.
These users thanked the author StressMerchant for the post:
Rotor kop
Dweller on an errant planet
User avatar
Whirly
10000 and still climbing
10000 and still climbing
Posts: 16336
Joined: Tue Nov 11, 2003 3:25 pm
Closest Airfield: Mossel Bay
Location: Mossel Bay
Has thanked: 1560 times
Been thanked: 2190 times

Re: Replacing steam on a certified aircraft

Unread post by Whirly »

Seem like Dynon certified can do all he needs, they have a list of aircraft on their STC, so does Garmin, and uAvionix. Available panel space will also dictate.

Depends on how much he can or wants to spend.

Whirly
Not every home needs a dog but every dog needs a home.
User avatar
Rotor kop
8000 Tousand
8000 Tousand
Posts: 8912
Joined: Sat Dec 31, 2005 1:43 pm
Closest Airfield: OR Thambo
Location: Wherever there is good diamond gravels...
Has thanked: 2889 times
Been thanked: 470 times

Re: Replacing steam on a certified aircraft

Unread post by Rotor kop »

Probably going to cost more than the aircraft value #-o unless he is very lucky and a STC and panel change will be free...
To fly is Heavenly, but to HOVER is Divine
I'm not driving fast - i'm flying low
User avatar
Vogoff
Argument with Heli Pilot.
Posts: 568
Joined: Tue Jun 10, 2014 9:54 am
Closest Airfield: FASD
Location: Johannesburg
Has thanked: 154 times
Been thanked: 241 times

Re: Replacing steam on a certified aircraft

Unread post by Vogoff »

Dynon do a very nice panel for the Seneca with auto pilot, ADSB, engine monitor and radios. But no GPS.

"Only" $41k excluding installation. Or around R800,000 at todays prices.

That's for a twin with all the bells and whistles. A basic system starts around $13k (R250k).

So they can probably do it. But I doubt "affordable" would be a word used in the conversation. Dual G5 or AV30s would probably be more cost effective.
These users thanked the author Vogoff for the post:
Rotor kop
Matthew French
ZU-DRO : Cubby Mk II
User avatar
Lood
Fife Thousand feet
Fife Thousand feet
Posts: 5397
Joined: Wed May 04, 2005 11:45 am
Closest Airfield: FAHV
Location: Colesberg
Has thanked: 151 times
Been thanked: 801 times

Re: Replacing steam on a certified aircraft

Unread post by Lood »

Vogoff wrote: Mon Feb 17, 2025 1:20 pm Dynon do a very nice panel for the Seneca with auto pilot, ADSB, engine monitor and radios. But no GPS.

"Only" $41k excluding installation. Or around R800,000 at todays prices.

That's for a twin with all the bells and whistles. A basic system starts around $13k (R250k).

So they can probably do it. But I doubt "affordable" would be a word used in the conversation. Dual G5 or AV30s would probably be more cost effective.
Absolutely.
Nothing in the South African TCA world has any sort of connection to affordable, unfortunately. I hear some numbers from time to time and it is simply unthinkable. Even a very minor upgrade can easily set you back, north of a hundred thousand.
"An airplane might disappoint any pilot, but it'll never surprise a good one." — Len Morgan
User avatar
Vogoff
Argument with Heli Pilot.
Posts: 568
Joined: Tue Jun 10, 2014 9:54 am
Closest Airfield: FASD
Location: Johannesburg
Has thanked: 154 times
Been thanked: 241 times

Re: Replacing steam on a certified aircraft

Unread post by Vogoff »

Lood wrote: Mon Feb 17, 2025 1:50 pm Nothing in the South African TCA world has any sort of connection to affordable, unfortunately. I hear some numbers from time to time and it is simply unthinkable. Even a very minor upgrade can easily set you back, north of a hundred thousand.
My rough estimates for type certified avionics:
  • EFIS: R100k (2xG5) up to "how much you got"?
  • ADSB: R100k (if an internal GPS is used)
  • Backup (non primary) engine monitor: R150k
  • Panel mount IF GPS: R200k
By comparison I'm busy updating the panel in my Cubby. New EFIS, new radio, new engine monitor. No GPS maps because I have a phone. No ADSB yet. All less than R50k, thanks to MGL.
These users thanked the author Vogoff for the post:
Jean Crous
Matthew French
ZU-DRO : Cubby Mk II
User avatar
heisan
Seven Thousand
Seven Thousand
Posts: 7761
Joined: Mon Sep 19, 2005 3:45 pm
Closest Airfield: Rhino Park
Location: Pretoria
Has thanked: 60 times
Been thanked: 1093 times

Re: Replacing steam on a certified aircraft

Unread post by heisan »

Just remember - if the goal is to get rid of the vacuum pump, then you will require 2 power sources. So either a dedicated battery backup solution (which most EFIS manufacturer's can supply), or one with built-in battery backup (IIRC AV30 has one?).
Justin Schoeman

ZU-FSR (Raven)
User avatar
Whirly
10000 and still climbing
10000 and still climbing
Posts: 16336
Joined: Tue Nov 11, 2003 3:25 pm
Closest Airfield: Mossel Bay
Location: Mossel Bay
Has thanked: 1560 times
Been thanked: 2190 times

Re: Replacing steam on a certified aircraft

Unread post by Whirly »

heisan wrote: Mon Feb 17, 2025 2:51 pm Just remember - if the goal is to get rid of the vacuum pump, then you will require 2 power sources. So either a dedicated battery backup solution (which most EFIS manufacturer's can supply), or one with built-in battery backup (IIRC AV30 has one?).
Yes it does, and you have to pay extra for the one in the G5.

Whirly.
Not every home needs a dog but every dog needs a home.
User avatar
Whirly
10000 and still climbing
10000 and still climbing
Posts: 16336
Joined: Tue Nov 11, 2003 3:25 pm
Closest Airfield: Mossel Bay
Location: Mossel Bay
Has thanked: 1560 times
Been thanked: 2190 times

Re: Replacing steam on a certified aircraft

Unread post by Whirly »

My 2 x AV30Es (Experimental), when they just installed them. I will take a new pic, showing the Garmin GPS 760 too.

Whirly.
You do not have the required permissions to view the files attached to this post.
These users thanked the author Whirly for the post:
Rotor kop
Not every home needs a dog but every dog needs a home.
User avatar
Whirly
10000 and still climbing
10000 and still climbing
Posts: 16336
Joined: Tue Nov 11, 2003 3:25 pm
Closest Airfield: Mossel Bay
Location: Mossel Bay
Has thanked: 1560 times
Been thanked: 2190 times

Re: Replacing steam on a certified aircraft

Unread post by Whirly »

The 2 x G5s (Experimental) in my previous Alo. I personally prefer the AV30s.

Whirly.
You do not have the required permissions to view the files attached to this post.
Not every home needs a dog but every dog needs a home.
User avatar
Rotor kop
8000 Tousand
8000 Tousand
Posts: 8912
Joined: Sat Dec 31, 2005 1:43 pm
Closest Airfield: OR Thambo
Location: Wherever there is good diamond gravels...
Has thanked: 2889 times
Been thanked: 470 times

Re: Replacing steam on a certified aircraft

Unread post by Rotor kop »

Whirly wrote: Mon Feb 17, 2025 3:04 pm My 2 x AV30Es (Experimental), when they just installed them. I will take a new pic, showing the Garmin GPS 760 too.

Whirly.
What the AV30 cost?
To fly is Heavenly, but to HOVER is Divine
I'm not driving fast - i'm flying low
User avatar
Whirly
10000 and still climbing
10000 and still climbing
Posts: 16336
Joined: Tue Nov 11, 2003 3:25 pm
Closest Airfield: Mossel Bay
Location: Mossel Bay
Has thanked: 1560 times
Been thanked: 2190 times

Re: Replacing steam on a certified aircraft

Unread post by Whirly »

RK,

Go to : www.uavionix.com

It will depend if you need the "E" or "C" one. Once you have ADS-B, it is able to display other traffic, and you can control your remote transponder from it too.

I have an AV-link on each installed too, allows upgrades to be downloaded wireless.

Whirly.
These users thanked the author Whirly for the post:
Rotor kop
Not every home needs a dog but every dog needs a home.
mi'cmaq
Reaching altitude
Posts: 237
Joined: Tue Aug 31, 2021 12:40 pm
Closest Airfield: FASH
Location: Somerset West
Has thanked: 4 times
Been thanked: 82 times

Re: Replacing steam on a certified aircraft

Unread post by mi'cmaq »

Great information ; thanks to everyone who posted

Unfortunately my friends aircraft does not appear on the STC - AML (approved master list) of either Dynon, Garmin or uAvionix

Return to “General Aviation Chatter”