gasman

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Return to base / position hold airspeed
« on: July 13, 2016, 10:22:08 pm »
I've got stabilised flight modes working on my RC plane (Bix3) and have tried using return to base / position hold. The functions seem to be working although the plane goes to full throttle. RTB started flying a large orbit but at very high speed.

What settings are needed to decrease the throttle in these modes and hopefully make the plane orbit more slowly and in a tighter circle?

Thanks for any pointers. Is there somewhere online this sort of information can be found?

f5soh

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    • LibrePilot
Re: Return to base / position hold airspeed
« Reply #1 on: July 13, 2016, 11:20:02 pm »
Go to the UAVOBrowser and take a look at FixedWingPathFollowerSettings, there is some ThrustLimits you can reduce for min/neutral/max.
Most UAVO parameters are "self documented" with a tooltip on mouseover

When the aircraft go full throttle he try to gain altitude: Adjust your pitch value (Rotate virtual in Attitude tab) flying in attitude, without pitch stick and when you apply throttle the aircraft should climb a little.

Add some Roll differential in Vehicle tab, sometimes it helps for better turns.


gasman

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Re: Return to base / position hold airspeed
« Reply #2 on: July 14, 2016, 11:47:53 am »
I'll have a fiddle with these settings and see. Thank you!

I assume these numbers are fractions of full throttle? Should neutral equal approximate throttle position for straight level flight? I will drop max to 0.5-0.6 and test the result.

Re: Return to base / position hold airspeed
« Reply #3 on: November 02, 2016, 07:51:24 pm »
Gasman,d
    I have a CC3D and interested on using it on a wing and wonder if you would share your setup. Is it a CC3D, What GPS and other accessories did you add?  I have flown a CC3D on a quad and set another one for fixed wind but not yet installed.  I am using Librepilot.
Thanks,

hwh

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Re: Return to base / position hold airspeed
« Reply #4 on: November 03, 2016, 06:16:21 am »
Those functions are not supported on the cc3d, only on the revo, revo nano, and sparky2 boards.

Re: Return to base / position hold airspeed
« Reply #5 on: November 05, 2016, 08:49:17 pm »
hwh  what functions are not supported ?

hwh

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Re: Return to base / position hold airspeed
« Reply #6 on: November 06, 2016, 03:35:22 am »
hwh  what functions are not supported ?
None of the gps/autonomous flight functions are supported on the cc3d.  On a cc3d a gps can only feed location data to an OSD or telemetry.

Re: Return to base / position hold airspeed
« Reply #7 on: April 02, 2017, 06:43:00 am »
Please help me i have cc3dRevolution and i want to buy gps but I don't know what for model is the best ???

Re: Return to base / position hold airspeed
« Reply #8 on: April 04, 2017, 08:59:13 pm »
Buy a clone DJI/Naza GPS for about $20 on ebay and elsewhere.  You will have to cut the connector off and solder a different one on.
I bought one of these and have tested it, but not flown it yet.  It tests very well.
http://www.ebay.com/itm/282354189890

Connectors with wires attached
http://www.ebay.com/itm/5-sets-Micro-JST-SH-1-0mm-4-Pin-Female-Connector-with-Wire-and-Male-Connector-CA-/142067842038
http://www.ebay.com/itm/10-sets-Micro-JST-SH-1-0mm-4-Pin-Female-Connector-with-Wire-and-Male-Connector-/142067841999

some heat shrink tubing (too cheap to be true?)
http://www.ebay.com/itm/8pcs-Black-Assortment-Heat-Shrink-Tubing-Kit-Tube-Sleeving-Wrap-Wire-1mm-10mm-SG-/112326720294

See Naza GPS section
https://librepilot.atlassian.net/wiki/display/LPDOC/GPS+setup
« Last Edit: April 04, 2017, 09:02:57 pm by TheOtherCliff »

vk4tec

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Re: Return to base / position hold airspeed
« Reply #9 on: April 04, 2017, 09:09:46 pm »
This is amazing

How do you tell your bix to circle at base ?


Sent from my iPhone using Tapatalk

Re: Return to base / position hold airspeed
« Reply #10 on: April 04, 2017, 10:25:05 pm »
Return To Base doesn't try circle over base, it just sees when it is not over base and turns back to get to base.  The result sometimes it goes back and forth, sometimes kind of circle left, sometimes kind of circle right.

Also, when flying waypoint flight plan there is a way to tell it to circle.  That is the only true circle.