Re: [Paparazzi-devel] Automatic Takeoff and landing

[Nathan Aherne]

Hi Pascal,

In simulation yes!

Awesome thank you very much!

Can you explain to me how this works? I know I can move it but why? What does 
the boot option do? Am I able to specify a takeoff point somewhere else, say 
the flight plan etc? The reason I ask is everything else is extremely 
configurable, its unusual that I cannot set the start point of the aircraft.

Kindest regards,
 
Nathan Aherne
Reddog Technology
Web: www.reddog.com.au
Email: address@hidden
Mob: 0402 555 080

On 21/04/2010, at 9:29 PM, Pascal Brisset wrote:

> 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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> 
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