For anybody interested in looking at more data the attached is a log from a test flight with my Mini 4 Pro. Several runs were made by first applying full negative throttle and then full fwd elevator. Several combinations were tried 1) Sport, Normal and Cine mode 2) upwind, downwind and cross...
@GiannisS I noticed that your Mini 4 Pro has a max descent speed of 3 m/s. That's with full negative throttle. The spec is 5 m/s max descent speed which my Mini 4 Pro can easily achieve.
I gotta ask. Has your Mini 4 been modified, have extra equipment or otherwise not a stock unit?
I think this is what happened. I was working on coming to the same conclusion over on
Drone did not descend and stopped recording
But hit a bit of a problem. At 645 secs the descent is arrested and the horizontal speed begins to slow. Normally this would be done by decreasing the tilt angle...
I'd like to do a FocusTrack/POI video but there isn't an object that can serve as a POI. The POI is in the middle of a roof and the drag-select operation can't "grab" anything. It's possible to set a Waypoint POI to a specific location without using drag-select. But, then that Waypoint POI can't...
I recently got a MM4P and was able to retrieve .DAT files the controller. But, now it seems they no longer exist. I've set the Fly App to not synch. I suspect that it's because the FW was updated and the new FW doesn't record the .DAT.
The .DATs that I did manage to get are encrypted.
This is the first time I saw this.
Recorded flight data vs real time data
The M2 Mavic Pro actually rotates while holding IMUYaw constant. There were several more incidents following this where this happened. If I'm not mistaken other DJI platforms started doing this.
EDIT: This incident was a...
Not sure I'm following.. Are you referring to the M2 correcting an incorrect IMUYaw by holding it constant and rotating the M2 until magYaw agrees with IMUYaw?
It's the fact that there is no change in yaw that leads to erratic flight. Yaw gets set incorrectly when the AC powers up in a geomagnetically distorted field. And, then continues to be incorrect even after the AC has left the distortion.
I recall someone having success at this. The DJI person you are communicating with may not understand that the .DAT gets removed from the MCDatFlightRecords folder when the .DAT is uploaded to DJI.
Since they have a .DAT that can not be from the AC it has to be the .DAT recorded by the Fly App.
Can you try asking DJI for a copy of the .DAT they are using for their analysis? It's likely the .DAT that got synched from you device running the Fly App.
This appears to be a self inflicted yaw error fly away. I.e. it wasn't the pilot but instead the FC that caused the fly away. Easy to see why this could look like the familiar pilot-causes-yaw-error-fly-away scenario.
The initial yaw of -34° is consistent with the south westerly trajectory and...
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