gevertex Posted March 11 Report Posted March 11 Hey all, A couple years back I had my panel redone (G3X touch), and a Garmin AOA installed. For the life of me I can't get it to work properly. I've been back to the shop a few times, followed their instructions to the letter. Once calibrated, on the next climb from ground level, the AOA will slowly indicate a higher and higher AOA until I get a stall warning alert. It never displays on landing, even though I get much slower on landing than in climb. In the images, you'll notice that the AOA indication increases while the speed stays relatively constant. I would expect AOA to be relatively the same for the same speed with maybe some small changes due to altitude. Any ideas?
Bolter Posted March 11 Report Posted March 11 If the Garmin AOA is just a glorified air speed indicator instead of a real moving vane type, then it seems like a blocked inlet port. It is essentially tracking altitude, not airspeed. When you leveled off, it slowly restored, like 95% blockage will eventually let some air equalize.
gevertex Posted March 11 Author Report Posted March 11 10 hours ago, Bolter said: If the Garmin AOA is just a glorified air speed indicator instead of a real moving vane type, then it seems like a blocked inlet port. It is essentially tracking altitude, not airspeed. When you leveled off, it slowly restored, like 95% blockage will eventually let some air equalize. Yes, two holes in the bottom of the pitot tube that measure air pressure.
gevertex Posted March 11 Author Report Posted March 11 I'll get a drill bit and probe the probe to see if there is any blockage. I had understood this was checked already, but I agree the data does look like 1 or more ports are blocked.
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