Re: [Paparazzi-devel] Automatic Takeoff and landing

[Joy Morris]

Please quit sending me these emails.

Joy Morris http://www.imdb.com/name/nm1192340/

-----Original Message-----
From: Pascal Brisset <address@hidden>
To: address@hidden
Sent: Wed, Apr 21, 2010 4:50 am
Subject: Re: [Paparazzi-devel] Automatic Takeoff and landing


Hi, 
 
> *Pre Flight Checks* - is it possible to code something similar to the 
> preflight checks on a normal aircraft? 
For example ? 
>  
> *Building a runway takeoff* - I cannot seem to set the start point of 
> the aircraft for takeoff (maybe it would be good to set a start point 
> dynamically when I push takeoff). The start point seems to be the Lat 
> and Lon in the flight plan file. 
>  
> I would like to be able to 
>  
> 1. Have a dynamic start point when I push takeoff (or other button) 
You can use the NavSetWaypointHere() macro to set the waypoint (example 
in MOB block in basic.xml) 
> 2. Have the aircraft travel down the runway with slight down elevator 
> until above minimum speed. 
Use the "throttle" vertical mode: 
 
  <go vmode="throttle" throttle="0.314" from="RunwayStart" 
wp="RunwayEnd"pitch="-10"/> 
 
where the pitch attribute should give you some down elevator 
> 3. Move elevator to certain up pitch 
> 4. Fly to waypoint Climb 
Back to standard takeoff 
>  
> Is the above possible? 
You will say it ! 
> How do you keep the aircraft from going off the side of the runway > 
given the GPS is not that accurate? 
Try :-) How is directed your front wheel ? You will have to play with 
the course_pgain (probably different from the "air" one) 
> If it is possible, I have no idea how to do any of the above, could > 
someone point me in the right direction? 
>  
> *Runway Landing.* 
>  
> Are runway landings possible with a good degree of accuracy? 
Repeatable automatic landing in a 25x25m square, without barometer, is 
our (the historic team) best achievement with a Slayer 
(http://paparazzi.enac.fr/wiki/Image:DragonSlayer_0948sm.jpg) 
 
Good luck 
 
--Pascal 
 
PS: Feel free to feed the wiki with your understandings of the system 
and your experiment results :-) 
 
> Kindest regards, 
> > Nathan Aherne 
> Reddog Technology 
> Web: www.reddog.com.au <http://www.reddog.com.au> 
> Email: address@hidden <mailto:address@hidden> 
> Mob: 0402 555 080 
>  
 
 
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