Another lost Mavic but where's the rest of my flight log?

[Huskerfan]

Ran it out about 21,000 feet. Turned around to return home but the only flight log I can see is the first 7 minutes. I remember the Mavic running down to about 60% battery and saying it should return home so I started home and got to about 11,000 feet and lost connection at that time.

I might have undone the rth so I could fly it faster cause the battery was running out. So I imagine it just landed when it got to critical battery but because the flight log didn't record that part I don't know where it is.

My main question is why did the flight log stop recording?

 

[Anthony Viscomi]

I'd say your battery surely died. You were out 4 miles, no way you would have made it back. Can you post your flight log for others to review?

DJI Flight Log Viewer

 

[Huskerfan]

I was at 76% battery at 4 miles out then started coming back. Here's what I can find from my Ipad. See, the log just ends.

How bout the .dat file? Is that useful?

 

[Anthony Viscomi]

Here's your log:

DJI Flight Log Viewer - PhantomHelp.com

 

[Anthony Viscomi]

There was no way you were making it back, especially flying in Sport mode

 

[Huskerfan]

Here's your log:

DJI Flight Log Viewer - PhantomHelp.com

Yes, I see that but the log just ends at 400 feet up and 76% battery. Where's the rest of the log? There's another .dat file and I'm trying to figure out how to read that.

 

[Mossiback]

I was at 76% battery at 4 miles out then started coming back...

If you had 76% battery at 4 miles, I am guessing you had a tailwind going out that turned into a headwind coming back. That would account for your battery drain. It stopped recording because you lost connection. Perhaps the real question is why did it lose connection?

 

[Huskerfan]

2018-01-10_22-33-57_FLY047.DAT
I have this file that might explain some things but I don't know how to open it.

 

[Youser]

Ah this reminds me to upload my flight log. I pushed the limits on my drone and lost it but the last couple of mins of flight there was no data.

 

[Plawa]

There was no way you were making it back, especially flying in Sport mode

What makes you say that?

 

[Huskerfan]

That's the weird thing. I had control of the mavic after the end of this flight log. I was bringing her back home.

 

[Mike4884]

76% at 4 miles? U should have been at 55 or 50 even in sport mode so u def had to have a headwind going out....probably why u didnt make it back. With rth if u just simply jam right stick forward while in rth mode u will get more speed about 30 mph vs 22. As to why your flight log cut out I have no clue

 

[Youser]

That's the weird thing. I had control of the mavic after the end of this flight log. I was bringing her back home.

In my case, 'find my drone' was showing the location of the controller.

 

[Huskerfan]

Funny thing is I was going to sell the Mavic cause I already have 3 other drones. Now I want her back.......

 

[Youser]

Battery Died - Drone Lost - Questions

I just posted the log of my flight.

 

[Huskerfan]

I was recording video the whole time. Would that show up some where? Other than the sd card of course.

 

[Anthony Viscomi]

What makes you say that?

IMO for the OP to get out 4 miles and still have 75% battery remaining, there must have been a tailwind. Not unless it was a modded battery. Should also be not that at a height of 400ft who knows what the wind speed was up there.

 

[Keule]

there must have been a tailwind

Yep, Airdata computes the wind coming from North:

 

[Plawa]

IMO for the OP to get out 4 miles and still have 75% battery remaining, there must have been a tailwind. Not unless it was a modded battery. Should also be not that at a height of 400ft who knows what the wind speed was up there.

I was referring to the second part of your statement suggesting that Sport mode is less efficient in covering distance - that is not true.

Mavic Battery and Speed efficiency chart

 

[Keule]

there must have been a tailwind

... and here the flight path ...