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Re: [Paparazzi-devel] Auto2 take off question

From: Simon Liebold
Subject: Re: [Paparazzi-devel] Auto2 take off question
Date: Thu, 04 Sep 2014 18:26:51 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0


Did the roll="0" solution actually work for you? A couple of days ago I thought about starting it on AUTO2 as well. But I experienced the same aileron movements (approx. 4 Hz/s) that you described - even with the simple start block. Needless to say that I didn't feel to risk my plane.

What is the correct way to AUTO2 start? Do I need to run 5-10 meters before letting it fly, for the AP to calculate its direction of flight?


Am 19.07.2014 um 19:31 schrieb afishindouban:
Thank you so much Martin.

Sent from Mailbox for iPhone

On Sat, Jul 19, 2014 at 6:43 AM, Martin Mueller [via Paparazzi UAV] <[hidden email]> wrote:

Hi Kevin,

a simple solution is to have the aircraft fly at an (e.g. 20°) angle for
3 seconds without any waypoint navigation

  <block name="start">
   <attitude pitch="20" roll="0" throttle="0.99"
until="(autopilot_flight_time > 3)" vmode="throttle"/>
   <go wp="START"/>


On 07/18/2014 05:01 AM, afishindouban wrote:

> Hi everyone,
> I am testing a Bixler with master paparazzi, using sample
> bixler_lisa_m_2.xml and basic flight paln. it is a DCM INS without compass
> involved. What I want to do is that in auto2 mode, click take off, then
> click launch to have full throttle, then throw the plane by hand. But after
> I click take off, I feel aileron is not stable, I check the message, the
> desired roll is changing all the time. in this case, I feel afraid to throw
> my air plane, because it can be a crash.  I guess it could because the air
> plane has no speed, so GPS heading is not right, and always changing. so the
> desired roll is not stable. Am I right at point ?
> and then my question is how to make a auto2 hand throw launch with DCM INS ?
> Kevin
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