HelloI have tested the previous 2.9 versions with great success. I love the changes. Today, not so good......I ran my standard mission I use for tuning, some wind today but just a little. Mission is a straight shot of .5km and then back over my house about .8 km at high speed. I apologize if this has been discussed but did not see it under 2.9. For the first time I used DO_CHANGE_SPEED so on the way back it would have some moe speed over my house. This is what happened. Started accelerating at 90 M alt as programmed but then continued to lose altitude while maintaining 88 KM/hr until it hit at that speed into th dirt. I shouldn't of taken my eye off it but have flown this so many times. I fly 3 D Helis often but at that speed even a switch to acro gave me no time or chance to save this. The board made it. I am running a DJI 450 with 10 inch graupners on 4S. was I supposed to put in the Alt in the change speed command? If there is no explanation I have the flight log. Units are in miles per hour and meters in the log. Thanks for any helpCheers!!JEFF
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My guess is that the quad could not achieve the commanded speed, and maintain altitude at the same time. Not enough thrust. Currently, there is nothing to protect for this situation, and I think the pitch/speed controller will win.
We will need to put something in the code so that if it can't maintain altitude, the alt hold controller will win, and the speed controller will lose.
Replies
Did you hit 88 km/h in a quad?
My guess is that the quad could not achieve the commanded speed, and maintain altitude at the same time. Not enough thrust. Currently, there is nothing to protect for this situation, and I think the pitch/speed controller will win.
We will need to put something in the code so that if it can't maintain altitude, the alt hold controller will win, and the speed controller will lose.