Hi everybody! Something weird happened today.

For everybody not familiar with the Turnigy 9x, it does not have any failsafe. If you turn off the transmitter in the middle of a flight, the receiver will just kind of "freeze". It wont put throttle to 0 or anything, it will just freeze.

My APM 2.6 quadcopter lost contact with my Turnigy 9x radio a few seconds after it took off. I had just put it into loiter mode, which made my quadcopter just hover about 3m above ground, and I couldn't do anything! I panicked as I just couldn't see a solution for what was happening. I tried to restart my transmitter several times, change flight mode on the APM, but I just couldn't get contact with it. 

About a minute after I lost control, my quad just dropped. It seems like the APM "rebooted" or just disarmed mid-flight.

You can see screenshots of the logs, and you can see how it stops recording the barometer at 4m height. This indicates that the APM just rebooted midair, doesn't it? Why would it do this?

Here's my theory:

Something's wrong with my transmitter
What happened is what would have happened if I just turned off my transmitter. 
Disproval for this theory
A) Just after the crash, I unplugged the battery. A minute later, with no props attached, I connected the battery and the transmitter had perfect contact with the APM.
B)Why would it just drop a minute after I lost control? Is this maybe a feature of the APM? "If RX input freezes for a minute, disarm motors"?

If you want the .log for this flight, I have included it HERE

I was very lucky in this crash, as only one glue joint broke and the antenna on my 3DR radio broke.


Help would be much appreciated! Thanks a lot!

Patrik

Baralt VS Relalt Download

3691156076?profile=original

Thrin VS Throut Download

3691156115?profile=original

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Activity

Liam left a comment on Agricultural UAVs
"Hi
I'm Liam from T-MOTOR. I would like to reach out to see if there is any possibility for us to work together.
We are a propulsion system manufacturer who offers motors, propellers and ESCs for all kinds of drone applications which vary from secur…"
Jun 30
Richard Cox left a comment on Australia
"Anyone in the DIYDRONES Australian subgroup based in Alice Springs, NT?
I am experimenting with Ardupilot (standard Arduplane), Pixhawk 4 FC in a 4-ch
RC "AXN Floater Jet" foamy plane..."
Jun 29
Omar Sykes left a comment on Australia
"Hi everyone, I am looking for someone who is good at drone building, repair and software in Adelaide. Please give me a call on 0477 319 219."
Jun 29
More…