AOA calibration

woxofswa

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Jun 13, 2009
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I have been trying to get the AOA calibrated. I go through the setup procedure, the oscillations, the stall, but when I hit save the AOA display goes blank with the Cal? again.

I've tried it three times to no avail. Any suggestions?
 

Dynon

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A few questions:

What version of SkyView software are you running?
You have our AOA/Pitot installed, true?
Can you describe, in your own words, what you're doing procedurally during calibration?
Do you receive any error message at all when you you hit save?
 

woxofswa

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Jun 13, 2009
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Thanks for the response. I have been on 10.0 but will am updating to 10.1 today and will re attempt the calibration and report back.
 

woxofswa

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I tried it again. Updated to 10.1. Entered the high speed cruise. Entered setup and AOA calibration. Got the AOA graphic. Did the +5-5 pitch oscillations followed by the stall (two stalls this time   All is good til I hit save and then the AOA box goes blank again with Cal? above it.

One thought. I haven't calibrated my compass yet because I haven't found a usable Rose in the confines of my fly off area (and the heading has been dead on so far). Could that be related to the problem?
 

Dynon

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As you increase your AOA as you head towards the stall, does that AOA graphic change (it should - it's showing a sort of uncalibrated output of the pressures)?
 

Dynon

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Actually, one obvious question - do you have the AOA/Pitot? If not, that's definitely the problem (it's required)
 

woxofswa

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>>do you have the AOA/pitot?<<

Tough week on the squawk desk and it's only Tuesday?

Yes I have the AOA pitot (heated as well).

I've had my share of brain emetus, but that would one for the break room bulletin board. :-?
 

Dynon

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We've been there before. Sometimes it's the simplest thing - gotta check. Folks that aren't too technical have on occasion thought that they can get AOA regardless but it's better if you have the probe. But anyway, what the gauge is doing during the cal process will still be interesting. Taking a video of the PFD during would be interesting. When you stall, what's your IAS? What kind of aircraft is this?
 

Jonas

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Feb 24, 2010
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Double check to make sure your AOA tubing and static tubing aren't mixed up/ teed together.

I saw this once and that was the problem.
 
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