Test flight using new Auto Flap feature

I had an excellent test flight with the new Auto Flap feature this morning.




This picture is the end of a fully autonomous flight.  Sorry, I should have had video running....  It is impressive that the Skywalker is sitting within about a meter of the center of the runway.  However, what is really cool about this landing is that there was a 10-15 mph (5-7 m/s) tailwind.  The decent rate of the Skywalker is pretty slow without flaps, making precision landing difficult.  With a tailwind the glide angle would be very flat and in this case the landing would have probably gone very long, landing perhaps 100 meters past this point.  However, with the automatic flap deployment ArduPlane did a very good job of getting the plane down and stopped close to the programmed landing point. 


To help everyone interested use this feature I have added a wiki page about it.  You can find that here:


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  • Developer

    2nd inquiry on that today....


    You may have noticed that was an item put out on the list of things appropriate for new developers.  I am trying to not touch that list for a bit here in case anybody new wants to get involved and give it a shot.  If not, I'll probably take it up (maybe next week)

  • You had mentioned before that you may turn your attentions to flaperons here in the near future. Just curious if that was still a feature that you were planning on adding. Not to downplay what you have done so far (the auto flap feature looks really cool) but may airframe doesn't have flaps.

  • Davey the code fits fine in the 1280, you just need to disable cli.


    Doug, did you take a look at my patch a3f75347295a in the APM_Camera branch ?

    I think it fixes some cases where the flaps are configured as channel 8.


  • Developer

    Ahmed - Hand launch is no problem.  APM will stabilize in roll just as well as a human pilot....


    Davey - I have not checked lately.  We are near the limit, but I believe the trunk still compiles for the 1280.  If not, you can always compile for a specific gps (vs gps auto detect), or with the cli disabled, and it will easily fit.

  • Doug what about the torque when you hand launched did it went wing leveled or rolled ? can u please post the video of takeoff and landing.

    You did a great job.


  • Great work Doug ! 

  • Nice work Doug!

    How are we with fixed wing code and 1280 support? Still managing to squeeze the code in OK? I seem to remember APM was less of an issue than ACM?
  • Developer

    Hey Richard,


    Yes, very lucky.  That field is the Boulder Aeromodelers Society field; one of the local RC clubs.  They are an AMA club, but very diverse with people interested in planes, heli's and gliders.  They don't seem at all concerned with my UAV activities :)

  • Doug, thanks for this post and for your work!  Very impressive! 

  • Man you are one lucky dude to have that runway and field to do your testing in. tick one for video next time.

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