With the data we have, the last thing I can think of is either you possibly clipped the tree, or something was sucked in to the motor. But without the motor data there is no way to know......I didn't go in to terrain detail.
I agree I would love to be able to interpret these things much betterI'd love to be able to see what you see here in this flight graph....please where at the 110 seconds how can you see that the prop came off.......I want to some day be like you and read these and help others here.....Thank you...and besides the prop issue what else can you see in the multi colored lines.
The aircraft pitches up and rolls left, which implies loss of lift rear left. The rear left is a CCW motor, leaving two CW props balancing one CCW prop, which causes the aircraft to enter a CCW spin. The final clue, which requires having seen these events before, is the 2 Hz oscillation that is typical of a lost prop.
However - the OP states that none of the props came off, which doesn't leave much room for any likely hypothesis.
What about a pc bug causing a temporary shutdown of the left rear motor ?
That would have a similar effect, but I've never come across such an event. The DAT file would show that in the motor command data.
Given that the P3S flew again without incident the only possibility I can think of would be an intermittent motor/esc issue. If so, the .DAT from the P3S might help. Specifically, the motorCommanded data might show an increase on the leftBack (too bad the P3S doesn't record motor data). Also, the contents of the eventLog stream might be helpful.It appears that the left rear propeller came off at 110.6 seconds into the flight. It's likely that you had not attached it properly. Did you tighten it or just spin it on?
View attachment 98307
The flight Data!!
FLY181.DAT
Please provide a screen shot and description. Never saw anything close to that. Just for my own sanity after watching this frame by frame 5 times.....................Watching the video I see string on the prop guards.
Please provide a screen shot and description. Never saw anything close to that. Just for my own sanity after watching this frame by frame 5 times.....................
I only looked at the few frames at the time of the incident. Frame by frame appeared to be the top of the cloud formations in the foreground. Looking back that is correct, but why string? Never used guards before on any quad I have had.It's quite visible for much of the movie:
I only looked at the few frames at the time of the incident. Frame by frame appeared to be the top of the cloud formations in the foreground. Looking back that is correct, but why string? Never used guards before on any quad I have had.
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