PPRuNe Forums - A320 AOA sensor pointing to up position

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a320av

24th Sep 2012 07:44

A320 AOA sensor pointing to up position

I see many times A320 AOA sensor pointing to up position after landing.
Any one could explain me why. many thanks

lovegroove

24th Sep 2012 11:06

I've never worked on the A320, but the AoA sensors that I've come across rely on airflow, so on the ground with the aircraft stationary, the AoA indicator just points to wherever the sensor is positioned.

glum	24th Sep 2012 14:52

If its a 'flying wing' design, then I suspect gravity is simply acting on the heaviest bit and making it point skywards...

ampclamp

25th Sep 2012 10:09

Doubles up as a heavy landing indicator... sorry.:p

Most aoa vanes are free to move at all times with just a little friction so they go where the airflow takes them. It takes very little to move them with a gust of wind or good bump.

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