Been using mission planner for a few works now and its awesome (was a ex dji ground station user lol)!
My only ‘problem’ is that the drone wont keep the speed that i put in the survey grid option (in this case 35km/h = 9.5 m/s), but in the field the drone wont go even close to that speed, was always between 5ms to 7ms.
Already change the value in the WPNAV_SPEED to 10m/s, but the results are the same.
Is there any trick to get the drone fly in a more constant speed? at least near the 9m/s.
Another thing, see attach, the ‘‘use speed for this mission’’ in survey window what it really do?
Pretty simple I think. Your max waypoint nav and loiter speed is set to 500cm/s. I usually set mine to 8m/s. Note that a 6m/s will fluctuate from say 5 to 6, never holding 6 perfectly.
Did a auto mission with 7m/s (survey grid) but only between the first two waypoints the drone was closer to 7m/s, in the next waypoints the drone was again between 5,5m/s to 6m/s.
Funny thing is that in the RTL the drone was ALWAYS in 7m/s (400m from the last waypoint to home), the speed that i want it.
What could this be? Some Bug? Some parameter regarding the attack angle?
Try to make a test mission with a distance of 100 meters between two waypoints and look at what is the max speed reached , it could be that the settings of your copter do not allows enough accelleration between two waypoints if these are at a short distance.
There could be a number of reasons if it’s not a simple fix like max waypoint speed… I’ve had problems with forward speed when flying large units (28’) props. I would get this pitching in the logs that wasn’t obvious to the eye in flight. Turns out the throttle min needed to be set lower. Basically the front drives weren’t slowing down enough. Check you RC out graph and see is your front motor are clipping at the low end (flattening out),
This is the angle and % slope created by the difference in altitudes at each WP. If the WPs are at the same altitude, then they will be zero.
Ok, my turn for a question.
Does anyone know how to find the commanded speed in the logs? I want to compare commanded speed to actual speed. I have ch.6 set to change speed, and I want to see when I moved the knob.
