iNav Programming - Automatic control surface rates, based on your plane's speed

[@ab7rs]

Wow, I can't believe the number of quality instructional videos you churn out, bravo! Merry Christmas and a happy 2021

[@MrD]

Thanks Tracy. Merry Christmas.

[@sarantis2]

Happy Christmas. Thank for your video

[@MrD]

Thank you and Merry Christmas Sarantis.

[@raffman4266]

I hope you can also make an example for a geofencing programming sir!Thank You for your very informative and perfect examples! Kudos to your channel

[@MrD]

This is something on the list 👍🏻

[@milkhbox]

How about automatically deploying flaps based on speed?

[@fpv-tech]

Can u help plz. I need to setup 80mm edf F16 jet. So when the flaperons are deployed I don’t want them to act as aileron. only my spoilerons should move.

[@North49RC]

Thats a cool vid. In OpenTX like you said you could do this there, and you can make set it to a global variable so the the rates are progressive. As the throttle goes up the rates decrease in a smooth manner. Does Inav deal with global variables?

[@MrD]

Unfortunately the transition is immediate in iNav. It would be great if there was a way to make that smooth. Especially as in 4.0 there os actual profile switching. However, from testing the profile switching, the transition isn’t too bad, even without the smoothing.

[@avsaase]

Would it not make more sense to do this based on throttle stick position, since that is directly proportional to airspeed?

[@MrD]

The problem with the throttle stick is that its a pilot input. I wanted to try to make is purely based on flight parameters, something that could only be true if you are in the air. If you were on the bench or working on something, and the throttle was not low. That would then mean that the model could be armed instantly, which is really not a good situation to be in. I was also thinking of altitude, but this would not work as sometimes it glitches, and what if you are actually flying below the launch point. This is why I thought speed would be the best option.

[@JW-ww4ly]

I was wondering.. why not use 3d speed.. because its probably more precise than only ground speed right? If you don't have a pitot tube that is... is there a risk in doing so? Anyone knows? Cheers!

[@MrD]

No risk, 3D speed would actually be perfect 👍🏻

[@JW-ww4ly]

@@MrD thanks! At one point I disarmed and only realized it after some time.. for some unknown reason (totaly my fault) it headed in a spin to earth.. With only gps gound speed it would probably not have enough registered speed to override.. that started me thinking.. Anyway thanks again! Cheers