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HomeHomeDiscussionsDiscussionsADS-B Discussio...ADS-B Discussio...EFIS showing Right Bank, when reality is Straight and Level - already tried resetting the AHRS. Now?EFIS showing Right Bank, when reality is Straight and Level - already tried resetting the AHRS. Now?
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7/26/2019 7:08 AM
 

Long ago, I had a similar problem, then realized there is a "calibrate" command that's different from the "reset/level" function within the Stratux interface.  Here are the instructions I got from Chris Young (the main Stratux developer) when I ran into trouble:

There are calibration values that are measured from the gyro when the unit is first started up. If the unit was moved during this first-start routine, it could potentially cause this issue. If you still have the chip that exhibited this problem, try plugging it in, setting it level, and then go to the "Settings" menu and "Calibrate Gyros". This is a different function from the "Reset/Level" function on the GPS/AHRS menu. I'd be curious to know if the unit calibrates correctly, if not then this is a new issue for us.

Performing "Calibrate Gyros" on the Settings page did in fact solve my problem.  If this is what you've already done and it didn't help, then I apologize.

One further option you could try is posting a bug report in the Stratux project at GitHub, here:  https://github.com/cyoung/stratux/issues .  As he mentioned in his correspondence with me, Chris would be interested to know if there truly is some new anomalous behavior occurring.

 
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7/26/2019 12:13 PM
 
Calibration of gyros seems to have worked for me. At least, for a few short simulation flights. Thanks.

192.168.10.1
 
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7/27/2019 9:08 AM
 

Thank you, Gents! I will try this as soon as practical.

It makes total sense -- I was JUST doing the in-cockpit pre-flight calibration and NOT the re-calibration of the "gyros" so I am hoping that will do the trick and is the explaination to this issue.

Thanks - this is a GREAT forum for help and assistance.  Appreciate everyone's inputs.

Mike N714AJ

 
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7/27/2019 4:53 PM
 

I went out to the airport to recalibrate gyros. I had to use the IOS iFly app to test. It still showed a right bank, so this didn't seem to fix my problem.

I would have tried to use the iFly GPS to test but while booting up the GPS, bootup didn't find the memory card installed. I thought I left it in the computer after an update.  Duh, I had to reseat the memory card after I got home. (It's the first time I had that happen on bootup(.


Zodiac 601HDS N6402X aprs KF7WIR-1
 
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7/28/2019 12:08 AM
 

For what it's worth, you can also see the results of the calibration from within the Stratux web interface itself...no need to use a separate app (like iFly).

 
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HomeHomeDiscussionsDiscussionsADS-B Discussio...ADS-B Discussio...EFIS showing Right Bank, when reality is Straight and Level - already tried resetting the AHRS. Now?EFIS showing Right Bank, when reality is Straight and Level - already tried resetting the AHRS. Now?