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Re: [Paparazzi-devel] Yaw Stabilization in AUTO1/2

From: Christophe De Wagter
Subject: Re: [Paparazzi-devel] Yaw Stabilization in AUTO1/2
Date: Sat, 7 Apr 2012 11:21:57 +0200

Some people have used filtered lateral acceleration or a sideslip sensor to improve the coordination of turns.

Several use rudder mixed in the servo rules just as a percentage of the roll command (use full for gliders to cope with significant adverse yaw)

But be careful as to much rudder is often worse than too little as slow turns with little roll but a lot of rudder lead to spins. This is probably why most do not use the rudder.

On Apr 7, 2012 4:54 AM, "Chris Wozny" <address@hidden> wrote:

I was wondering if there is a reason why there is no yaw stabilization
for aircraft equipped with rudders? When flying the aircraft in AUTO1
or AUTO2, I notice that the rudder doesn't respond to quick changes in
yaw like the elevons do when quickly pitching/rolling the aircraft. Is
there a reason for this? It seems like the rudder isn't used at all
for flight and it's mostly all elevons.

Also, is there a reason why one would want to control the rudder in AUTO2?

- Chris

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