Home > VansAirForceForums

-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

Old 12-17-2017, 06:53 PM
Robb Robb is offline
Join Date: Sep 2015
Location: Nevada City Ca
Posts: 260
Default Attitude Gyro

My vacuum operated gyro started to die today while flying back from Oregon. I need to replace it and was thinking of getting a new Garmin G5 to replace it with. I can easily remove the vacuum lines from it and wire in a circuit. I already have an auto pilot linked to my 430 Garmin that works great and I know the G% links as well. I was wondering what the best one to replace the vacuum type is? Eventually i want to remove the vacuum pump as I don't really see a need for it all it will run is the DG. Thanks

Dues gladly paid
Reply With Quote
Old 12-17-2017, 07:24 PM
Michaelpk3 Michaelpk3 is offline
Join Date: Dec 2016
Location: Sarasota, FL
Posts: 115
Default G5

Get the G5 with battery back up. I've been running it now about 2 months and love it. See pic below...
Michael Kalfsbeck
N505AT RV-7A based in Sarasota, FL
Reply With Quote
Old 12-17-2017, 08:14 PM
GaryK's Avatar
GaryK GaryK is offline
Join Date: Nov 2005
Location: Zeeland, Michigan
Posts: 410
Default G5 or GRT Mini

I ended up with the G5 and Backup Battery. My panel is mainly Dynon so I wanted a backup from a different manufacturer. The G5 has a serial connection to the GTN650. The Mini would have been my first choice but it didn't fit in the space I had after removing the Dynon D6. The Mini is 4.35" wide, the G5 is 3.42"

I have been very happy with the G5. Garmin did a nice job with the internal GPS antenna. I thought for sure I'd need to use an external antenna but the internal one works great, even at the top of the center stack in the 10.


Reply With Quote
Old 01-07-2018, 10:03 PM
Doug Eves Doug Eves is offline
Join Date: Dec 2007
Location: Brigden Ontario Canada
Posts: 72

Wish they were round
Reply With Quote
Old 01-08-2018, 06:51 AM
olyolson's Avatar
olyolson olyolson is offline
Join Date: Dec 2009
Location: St Louis, MO
Posts: 1,082
Default G5

You know they fit in a standard 3 1/8" instrument hole right?
RV-8, Aerosport IO-360M1B, MT 3 blade, AFS 5500
RV grin every flight
"Sure is nice to have smart friends"
Reply With Quote
Old 01-08-2018, 07:53 AM
BCP Boys's Avatar
BCP Boys BCP Boys is offline
Join Date: Oct 2011
Location: Kennesaw, Ga
Posts: 881

Also, if you have the room on your panel you can flush mount them. I have the G5 as well and it'a nice addition.
RV-7 - Regretfully Sold
RV-10 - Sold

Supporting VAF since the first visit
Reply With Quote
Old 01-08-2018, 01:58 PM
Eagleflip Eagleflip is offline
Join Date: Jul 2007
Location: Yorktown, VA
Posts: 57

You can purchase a second G5 Experimental version and use it as an HSI. Coupled with a Garmin magnetometer (the latter is a slight PITA to install, as the directions require it to be within 2 degrees of the horizon in level flight and away from major electrical components), it offers everything you need.

Three major advantages: First, the battery backup on both lasts longer than your fuel will. Second, you can quickly convert the HSI into an attitude indicator (two button pushes) if you need a back up, and three, you get rid of the vacuum system entirely.
Reply With Quote
Old 01-08-2018, 02:47 PM
Dugaru's Avatar
Dugaru Dugaru is offline
Join Date: Jan 2016
Location: Richmond VA, USA
Posts: 595
Default Get the G5

You won't be sorry. It's a great gadget. Huge bang for the buck in terms of redundancy, reliability, etc. when you include the backup battery.
N929JA, 2007 RV-9A
Based W96: New Kent International Aerodrome
(near Richmond, VA USA)
2021 Dues Paid
Reply With Quote
Old 01-08-2018, 05:16 PM
Doug Eves Doug Eves is offline
Join Date: Dec 2007
Location: Brigden Ontario Canada
Posts: 72

Hi Oly , yes i did realize it would go in the round hole. It's just that all my panel is round and I just don't want to disturb the look. I just purchased a trutrack gemini autopilot and am putting it where my electric turn and bank instrument is as that gyro has gone south. Got looking at my standard horizon/DG and thought about getting rid of those for the light weight stuff. The gemini weighs about 8 oz but I think it has some short comings as a true artificial horizon if I am interpreting what I have read properly. I saw a guy on u-tube making a final approach and it was giving a false indication of where the nose of his plane was pointing. It is round however and I thought about buying another one to replace my vacuum horizon. Then just need another DG to eliminate the vacuum system and keep the original look of my panel. Not sure yet however.
Reply With Quote
Old 01-08-2018, 05:44 PM
BobTurner BobTurner is offline
Join Date: Dec 2011
Location: Livermore, CA
Posts: 7,856

Originally Posted by Doug Eves View Post
The gemini weighs about 8 oz but I think it has some short comings as a true artificial horizon if I am interpreting what I have read properly.
You are correct about the Gemini. Short term it uses accelerometers to come to an attitude solution, but long term it defaults to rate of turn (for bank) and rate of climb (for pitch). So prolonged slow flight at constant altitude will result in a nose-level indication. As a precaution, the larger instrument will flash a warning if airspeed gets too low, but I don't think the smaller instrument does.
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

All times are GMT -6. The time now is 04:10 AM.

The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.