Re: [Paparazzi-devel] Automatic Takeoff and landing

[Pascal Brisset]

In simulation ?

Stop the Simulator agent and restart it *without* the "-boot" option. 
Then use the "Set Pos" button of the simulator interface to set the 
original position of the A/C. Then clock "Boot".

And find the right place to add the info in the wiki ? :-) 
http://paparazzi.enac.fr/wiki/Simulation

--Pascal

Nathan Aherne wrote:
> Hi Pascal,
>
> Thank you for your reply, much appreciated!
>
> I am having most trouble with the fact that the aircraft starts from the lon 
> and Lat in the flight_plan file and I cannot work out how to move it. Am I able 
> to specify the start point for the aircraft?
>
> Kindest regards,
>
> Nathan Aherne
> Reddog Technology
> Web: www.reddog.com.au
> Email: address@hidden
> Mob: 0402 555 080
>
> ----- Original Message -----
> From: "Pascal Brisset" <address@hidden>
> To: address@hidden
> Sent: Wednesday, 21 April, 2010 7:50:09 PM
> 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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