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  #1  
Old 03-21-2020, 09:37 PM
Jake14 Jake14 is offline
 
Join Date: May 2014
Location: Seattle
Posts: 323
Default simpla backup AI

would like to find a backup electronic (non-mechanical gyro) AI which is not dependent on GPS signals or pitot/static data. Just a simple unit with electrical input only and backup battery Does such a device exist?
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  #2  
Old 03-21-2020, 09:46 PM
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Bill Boyd Bill Boyd is offline
 
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Dynon D3? It will be my tie-breaker.
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  #3  
Old 03-21-2020, 10:13 PM
Jake14 Jake14 is offline
 
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D3 needs pitot-static and gps.
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  #4  
Old 03-21-2020, 10:45 PM
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RV8JD RV8JD is offline
 
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Quote:
Originally Posted by Jake14 View Post
D3 needs pitot-static and gps.
It doesn't have pitot-static inputs. It does depend on its built-in GPS receiver.

D3 Dynon Pocket Panel:
"The D3’s Ground Speed, Altitude, Vertical Speed, and Ground Track (direction) instruments are GPS-derived. Their indications WILL BE DIFFERENT from the airspeed, altimeter, VSI, and heading instruments in your aircraft panel. The D3’s GPS-based indications should not be considered replacements for any of these primary aircraft instruments. Details about each of these differences are described in the Product Tour section of this guide."
https://www.dynonavionics.com/pocket-panel.php

https://www.dynonavionics.com/includ...ide-102018.pdf

https://www.dynonavionics.com/includ..._Guide_001.pdf
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Last edited by RV8JD : 03-21-2020 at 10:56 PM.
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  #5  
Old 03-21-2020, 11:31 PM
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Pilot135pd Pilot135pd is offline
 
Join Date: Jan 2019
Location: Vaca Moo Airport - TA37 in East TEXAS
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Quote:
Originally Posted by Jake14 View Post
would like to find a backup electronic (non-mechanical gyro) AI which is not dependent on GPS signals or pitot/static data. Just a simple unit with electrical input only and backup battery Does such a device exist?
iPhone or iPad with free app.
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RV-8 N52VM: OnSpeed Gen2 AOA-3D, Dynon D-180, Autopilot, Titan 0-360A1A, Hartzell C/S, INS-429 IFR & GPS496, WingX & Stratux for backup & ADS-B IN. Enjoying life while building an airpark with FREE campsite for pilots www.facebook.com/VacaMooAirport/

Exempt by 3 out of the 10 ways but I still donated.
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  #6  
Old 03-22-2020, 02:23 AM
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DeeCee 57 DeeCee 57 is offline
 
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Quote:
iPhone or iPad with free app
Yet to find one that works proper without an external AHRS such as Stratos or Levil or ICfly...
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RV-6.9 #25685, slider, O-360-A3A (carb/dual Lightspeed II), MTV-12-B, HB-YLL owner & lover
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  #7  
Old 03-22-2020, 02:23 AM
PCHunt PCHunt is online now
 
Join Date: Feb 2007
Location: San Diego, CA
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Quote:
Originally Posted by Jake14 View Post
would like to find a backup electronic (non-mechanical gyro) AI which is not dependent on GPS signals or pitot/static data. Just a simple unit with electrical input only and backup battery Does such a device exist?
Just curious what your reasons are for avoiding GPS and/or Pitot/Static inputs?

The GRT series comes closest to what you are looking for, IMHO.

It's a big forum, someone will come along and have what you are looking for.....
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  #8  
Old 03-22-2020, 02:58 AM
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PaulvS PaulvS is offline
 
Join Date: Aug 2019
Location: Western Australia
Posts: 333
Default AV-20

uAvionix AV-20 for $895, it does not require GPS, and has internal backup battery. But it does require pitot and static. I'm not aware of anything that exactly matches your specs (have been looking myself).

https://uavionix.com/products/av-20s/
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  #9  
Old 03-22-2020, 03:19 AM
HarryL HarryL is offline
 
Join Date: Jun 2015
Location: Woking UK
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RC Allen unit used in certified aircraft:

https://www.kellymfg.com/images/RCA2...nformation.pdf
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  #10  
Old 03-22-2020, 04:03 PM
Jake14 Jake14 is offline
 
Join Date: May 2014
Location: Seattle
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Bingo! the RCA2610 fits the bill. Unfortunately the $2,600 price (plus a backup batt) is out of my range just to avoid the pitot/static/GPS complexity. The fact that it's for certified aircraft may have something to do with it, and apparently a completely different technology. Possibly someone will come up with a more reasonable version for experimentals.

I guess GPS reliability is such that I shouldn't really be worried about it. It's more just a desire to 'keep it simple and uncluttered'.
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