From: John Burt <address@hidden>
Sent: Thursday, 23 April, 2009 11:08:40 PM
Subject: [Paparazzi-devel] aircraft tuning question
I'm in the process of
tuning the flight behavior of my Multiplex Cularis airframe using a Tiny 2..11 AP. Until recently, I had the plane flying quite well, with reasonable tracking of flight lines, circles and waypoints. I have to say, it's a real joy to see this elegant (yet cheap!) aircraft flying itself around the field.
However, I had serious problems when I recently launched the plane with a radio-direction finder pod attached (http://paparazzi.enac.fr/wiki/User:John_Burt#Cularis
). Long story short, the top-mounted payload makes the aircraft unstable at low speeds and I need to increase the cruising airspeed.
There are so many parameters to tweak and I'd appreciate some guidance for the best way to do this. I assume that I need to adjust (at least) two parameters: 1) pitch during level flight, 2) cruising throttle. There are several pitch and throttle parameters, so which do
I need to tweak to do this?
While I'm at it, I have another question: even without the pod, the plane tends to overcorrect a bit when navigating (especially when turning into the wind). Reducing NAV_PGAIN doesn't help very much. Any suggestions for reducing this?
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