Lost my drone- mavic 2 zoom

[bonie for my droniecc]

Hi, my question is how far away from the last known coordinates would my mavic 2 zoom traveled before hitting the ground? 1290 ft altitude @ 26.9 mph. I experienced sudden loss of communication with the RC and couldn't reconnect. There was absolutely no reason to lose all communication/power. Last known record according to flight log shows when I lost communication and the stats above. So again... How far is the so called debris field where I could focus on? It's not like it dropped straight down with the height and speed it was flying at. Thank you for your help

 

[sar104]

It depends more on wind speed and direction than last recorded aircraft velocity. You will need to post your flight log to get an informed answer to that question.

 

[bonie for my droniecc]

Thanks for the reply, I'm in the flight record and trying to figure out how to save, find, upload. I'm using a Note 8. When I hit save it says screen shot emulated dji....

 

[Simmo]

Follow this link bud.
DJI Flight Log Viewer - Phantom Help

 

[bonie for my droniecc]

Not sure if this is what you meant but I'm not near a PC right now to do as the instructions stated. Thx

 

[Simmo]

No, you need to upload a .txt file.

 

[deepdezzz]

Well, sorry to hear that. Mavic 2 zoom was reported for 3-4 crashes. Does anyone know the exact the reason why? I heard somebody said that its ESC problem.. (

 

[sar104]

Well, sorry to hear that. Mavic 2 zoom was reported for 3-4 crashes. Does anyone know the exact the reason why? I heard somebody said that its ESC problem.. (

I don't know which crashes you are referring to, but I haven't seen any M2 ESC issues yet.

 

[bonie for my droniecc]

No, you need to upload a .txt file.

DJI Flight Log Viewer - PhantomHelp.com

 

[deepdezzz]

I don't know which crashes you are referring to, but I haven't seen any M2 ESC issues yet.

https://mavicpilots.com/threads/mavic-2-falling-from-the-sky-complete-failure.47411/ #11, #13 BudWalker said something about the ESC problem

 

[sar104]

https://mavicpilots.com/threads/mavic-2-falling-from-the-sky-complete-failure.47411/ #11, #13 BudWalker said something about the ESC problem

OK - so I came to the same conclusion on that event and my memory sucks. Yes - that did appear to be ESC failure. I think that's the only one so far, at least reported on this forum.

 

[Ynksfan27]

I’m a pretty new pilot, so don’t take this the wrong way. Is the max height allowed by the FAA 400 feet?

 

[bonie for my droniecc]

DJI Flight Log Viewer - PhantomHelp.com

Ok so here's the link

 

[DanMan32]

I’m a pretty new pilot, so don’t take this the wrong way. Is the max height allowed by the FAA 400 feet?

Yes.

 

[AeroJ]

Is the max height allowed by the FAA 400 feet?

Yes that's correct. And a 'within line of sight' rule. Pilot appears to be disregarding both of those.

In this case, I can't see anything in the logs that points to a problem with the craft - it was on its way home, with 50% battery left to do it with, and losing connection shouldn't have altered what it was already doing - returning home. So perhaps we need to ask what else could have stopped it returning. Bird strike ? Seems unlikely that high. Could it have been shot down ? Seems unlikely too - farmers don't shoot what is too high to see.

Maybe you lost power ? Or did it have a sudden battery drain for some reason, and landed before it could get back to you or regain connection ? If that's the case you could walk the path from the last known coordinates to the home point - most of that is fields, so you stand a reasonable chance of seeing it unless it went down in the wooded bit...

 

[bonie for my droniecc]

It depends more on wind speed and direction than last recorded aircraft velocity. You will need to post your flight log to get an informed answer to that question.

The log is posted. Thanks

 

[bonie for my droniecc]

The log is posted. Thanks

#13 thread

 

[sar104]

Ok so here's the link

The aircraft was flying into a variable headwind that appears to have been in the 8 - 10 mph range. It does look like a sudden disconnect that suggests a loss of power or shutdown, since it had plenty of battery to return home.

Wind drift calculations are difficult on tumbling objects, but it's going to take around 20 seconds to fall from 1300 ft, and even if it immediately acquired the wind speed it would only drift around 90 meters downwind. That bounds the problem - look from immediately below its last recorded position to around 100 m to the NE, which is roughly back along its flight path.

 

[bonie for my droniecc]

The aircraft was flying into a variable headwind that appears to have been in the 8 - 10 mph range. It does look like a sudden disconnect that suggests a loss of power or shutdown, since it had plenty of battery to return home.

Wind drift calculations are difficult on tumbling objects, but it's going to take around 20 seconds to fall from 1300 ft, and even if it immediately acquired the wind speed it would only drift around 90 meters downwind. That bounds the problem - look from immediately below its last recorded position to around 100 m to the NE, which is roughly back along its flight path.

I appreciate the help

 

[bonie for my droniecc]

Yes that's correct. And a 'within line of sight' rule. Pilot appears to be disregarding both of those.

In this case, I can't see anything in the logs that points to a problem with the craft - it was on its way home, with 50% battery left to do it with, and losing connection shouldn't have altered what it was already doing - returning home. So perhaps we need to ask what else could have stopped it returning. Bird strike ? Seems unlikely that high. Could it have been shot down ? Seems unlikely too - farmers don't shoot what is too high to see.

Maybe you lost power ? Or did it have a sudden battery drain for some reason, and landed before it could get back to you or regain connection ? If that's the case you could walk the path from the last known coordinates to the home point - most of that is fields, so you stand a reasonable chance of seeing it unless it went down in the wooded bit...

I'm thinking sudden loss of power either from a malfunction or sudden depletion of battery possibly from cold air. The ground temperature was ~30°