3 ms·
The AoA sensor doesn't measure fluid pressure in a pipe; it measures fluid direction with a small mechanical wing that rotates to align itself with airflow [0].
by dreamcompiler 8y ago
The AoA sensor doesn't measure fluid pressure in a pipe; it measures fluid direction with a small mechanical wing that rotates to align itself with airflow [0]. Thus it has to move, unlike a pitot tube. If it can't rotate for some reason, it gives faulty data.
[0] https://aviation.stackexchange.com/questions/2317/how-does-an-alpha-aoa-vane-work https://aviation.stackexchange.com/questions/2317/how-does-a...
- raverbashing 8y agoYes, I'm aware of the differences, but you could measure air speed in two axis then calculate AoA from there, that's what I mean.
- burfog 8y agoIt's done. Here you go, only a few hundred dollars: https://www.dynonavionics.com/aoa-pitot-probes.php https://www.dynonavionics.com/aoa-pitot-probes.php
- dreamcompiler 8y agoNice! Finds AoA through vector addition. Now I'm curious why Boeing uses a moving sensor. Seems like having two different kinds would be ideal.