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Re: [Paparazzi-devel] front wheel control of a fixedwing planeduring tak


From: Refik Sever
Subject: Re: [Paparazzi-devel] front wheel control of a fixedwing planeduring take off on a runway
Date: Tue, 10 Nov 2015 21:20:04 +0200

Hi Christophe and Hector,

 

Thanks for your reply.

 

Cheers,

Refik

 

From: address@hidden [mailto:address@hidden On Behalf Of Hector Garcia de Marina
Sent: Tuesday, November 10, 2015 10:42 AM
To: Paparazzi UAV devel list
Subject: Re: [Paparazzi-devel] front wheel control of a fixedwing planeduring take off on a runway

 

Also remember to control the rudder at the same time as your wheel (or they will fight against each other), in principle the control law should be the same.

 

On Tue, Nov 10, 2015 at 9:07 AM, Christophe De Wagter <address@hidden> wrote:

You will need some c-code with a PID controller. Maybe make it a module. But the flight plan runs only at 4Hz on fixed wings and that must be too slow.

I suggest an outer loop with a low PI gain commanding the heading and and inner loop with PD gain commanding the nose wheel from the heading error

On Nov 9, 2015 11:07 PM, "Refik Sever" <address@hidden> wrote:

Hello,

 

We want to control the front wheel of a plane during takeoff on a runway. Is there anybody who implemented this before?

 

I think that the ailerons will not change, but the front wheel must follow the line on the runway. It will be similar to following a line on the air, but only the front wheel will follow this line during takeoff.

 

How can we implement it? Is it enough to make a flight plan routine, which compares the route of the plane with the line? Or, do we have to change the c codes?

 

I look forward to your suggestions,

 

Cheers,

Refik

 

 

 

 


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