Re: [Paparazzi-devel] Reply to "How to descent faster? (Famille Chateauvieux-Hellwig)"

[Famille Chateauvieux-Hellwig]

Le dimanche 30 août 2009 01:42:16 chris, vous avez écrit :
> That looks very interesting i will try it.
> You mean that during the full rudder the IR stabilization should be off
> if i understood correctly.

Yes, do not try to stablize anything during the descent. The model will 
probably do wild figures. That's ok. The point is that it will fly very 
inefficiently.

My be you should expect a loss of GPS fix. It might be clever to keep this 
configuration olny for a fixed time (30-60s), then check where you are again.

> How can i do this in the flight plan?
> Chris

No clue. You'll probably have to define somtething new for paparazzi. I used 
this method on regular gliders. My Horus (http://www.horus-uav-systems.de) is 
not good enough that I've had this kind of problems before...

Another technique that works well for planes with elevators is to fly on the 
back. It works if you have an asymetrical airfoil (Twinstar, easyglider, 
Cularis...). On a paparazzi system this sould be only a question of exchanging 
what is up and what is down... Here again, expect to loose GPS signal if you 
use a patch Antenna...

Martial
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