Help me Phantom 3 Crash using auto take off

[giorgimonk]

Hello, i just crashed my PHANTOM 3 professional using auto take off, drone was in GPS mode with 20-22 GPS SAtelites-P mode on the remote i just used auto take off feature on my Android phone, drone started taking off however it drifted to the opposite direction i was scared and wanted to land it, throttle to 0 and phantom was upside down is there some kind off problem with software it self ? also app is telling me to update software.

 

[Fly Dawg]

Hello, i just crashed my PHANTOM 3 professional

We can only guess without the flight data to see what occurred. It appears you are new, so I will presume you are not familiar with that. You will need to first upload the flight log file from your device to this link below ( Instructions are on the link ). If that proves indeterminate, we would need to see the aircraft file. For now, see this link. Once you upload, place a link back here to that and we can take a look: Log Viewer

 

[Fly Dawg]

I can't upload files i don't know why file is in flightrecords folder and it's txt format

That is the flight log. It has to be converted to a readable format, such that we can see the data. That is why you need to upload it. Can't is not an option if you want to know what happened. Might I ask why you can't upload files?

 

[Fly Dawg]

I will add 2 more things, if I might. Have you read the entire manual? At least three times? These aircraft are not toys.
Go here if you have not: P3P Full Manual

 

[giorgimonk]

DJI Flight Log Viewer - PhantomHelp.com

 

[giorgimonk]

I will add 2 more things, if I might. Have you read the entire manual? At least three times? These aircraft are not toys.
Go here if you have not: P3P Full Manual

i had other drones before phantom including DJI s1000 have some experience flying drones however i think it's some kind of software bug ?? or hardware problem i bought drone used
Thank you

 

[Fly Dawg]

i think it's some kind of software bug ??

Just a quick look, but looks like Pilot error to me. You gave forward elevator immediately after leaving the ground.Then full down throttle, and the RC inputs are all over the place.

 

[giorgimonk]

Just a quick look, but looks like Pilot error to me. You gave forward elevator immediately after leaving the ground.Then full down throttle, and the RC inputs are all over the place.

View attachment 109311

Yes i gave forward elevator because it started drifting i think it was following wind direction drone was not facing me so forward elevator should do the opposite if im correct , also i gave it full down throttle because i couldn't control drone it went 12mph?? without me doing it also i don't know how could it happen because Drone was in GPS mode and compass was calibrated

 

[Fly Dawg]

Second look with attitude values....Still looks like pilot error IMO.

 

[Fly Dawg]

Yes i gave forward elevator because it started drifting

When using auto takeoff, you should never give inputs until hover.You were only approx .4 meters from the ground when you gave the elevator.

 

[sar104]

Just a quick look, but looks like Pilot error to me. You gave forward elevator immediately after leaving the ground.Then full down throttle, and the RC inputs are all over the place.

View attachment 109311

It wasn't pilot error as far as I can tell - at least not the initial problem. The aircraft began to drift significantly during auto-takeoff:

That drift was not driven by stick inputs, and does not appear to have been due to a compass error:

 

[RodPad]

@giorgimonk,
Welcome to the Forum!
Kind of a short flight.

Any damage?

How many flights have you had?

Rod

 

[giorgimonk]

@giorgimonk,
Welcome to the Forum!
Kind of a short flight.

Any damage?

How many flights have you had?

Rod

Hello, it was first one no damage some scratches on the propellers and one of the gimbal's vibration damper was missing but found it, i am going to use auto take off again and see what happens

 

[cheddarman]

FlyDawg -- how/where do you produce all these amazing graphs? I have spent the last two hours trying to do it in 2008 Excel but just can't fathom it out. I've entered the time and height data from the flight log into columns 1 & 2 but just can't get Excel to produce a chart!!!
Maybe I'm just too old

 

[Fly Dawg]

@sar104 Didn't have enough time to examine much more than I did from the log file, but I think I see the drift prior to the elevator command. Is this what you were seeing along the x and y axes, approx 1 second prior? I don't think it can be further diagnosed without the aircraft .dat.

 

[RodPad]

Hello, it was first one no damage some scratches on the propellers and one of the gimbal's vibration damper was missing but found it, i am going to use auto take off again and see what happens

Do you mostly use Auto Take off?
I don't like it, I think it should hover over your head, nothing below that.

I use with litchi missions, just because it saves time (Battery for the flight)

The .dat file is kind of pain to retrieve, but I would recommend learning how to do it and share it.

It's large file, you need some kind of drop box, etc to share it.
You need everything powered on, and a PC hooked to the USB port on the front of the Phantom.

Rod

 

[RodPad]

FlyDawg -- how/where do you produce all these amazing graphs? I have spent the last two hours trying to do it in 2008 Excel but just can't fathom it out. I've entered the time and height data from the flight log into columns 1 & 2 but just can't get Excel to produce a chart!!!
Maybe I'm just too old

Look up @BudWalker
CsvView/DatCon

Rod

 

[cheddarman]

Thanks RodPad, I'll PM Bud!

 

[RodPad]

Before you do that did you look at the link?
That is his web sight..

Rod

 

[giorgimonk]

everything seems to be working now even auto take off, maybe aircraft couldn't auto take off and hover because it was too windy, thank for the helpful tips, enjoying the forum !!