Can Some Please Read the Flight Log? Spin Out and Fall

hardhat068 · Feb 18, 2018

I think Motor #3 gave out. Solo went into a crazy spin, lost altitude, then tumbled and hit the ground. Motor #3 no longer works, but the wires are intact. I have a replacement motor, and it connects and lights up fine.

I am not sure which flight log is the correct one, so I am posting the last two. Incident happened around 2-2:30 today.

Luckily, I had the fixed mount on, and the body is intact.

RECENT.BIN

RECENT-1.BIN

jimloss · Feb 18, 2018

hardhat068 said:
I think Motor #3 gave out. Solo went into a crazy spin, lost altitude, then tumbled and hit the ground. Motor #3 no longer works, but the wires are intact. I have a replacement motor, and it connects and lights up fine.

I am not sure which flight log is the correct one, so I am posting the last two. Incident happened around 2-2:30 today.

Luckily, I had the fixed mount on, and the body is intact.

RECENT.BIN

RECENT-1.BIN

Those log files appear to be from your 12/14/17 incident, not today's.

hardhat068 · Feb 18, 2018

jimloss said:
Those log files appear to be from your 12/14/17 incident, not today's.

That's weird. I thought they were the latest logs from Solex.

How about these 3?

RECENT.BIN

RECENT-1.BIN

RECENT-2.BIN

jimloss · Feb 19, 2018

Still the 12/14/17 logs

hardhat068 · Feb 19, 2018

jimloss said:
Still the 12/14/17 logs

View attachment 7949

Ugh. Don't know why the latest flight logs are on Solex. I will power up tonight and try to get the latest. Thanks for reviewing.

David Boulanger · Feb 19, 2018

I'll take a look when you post them and give my 2cents.

hardhat068 · Feb 19, 2018

Ok. I think I found the right logs. Should be these 2. I had to reboot due to compass error message.

RECENT-7.BIN

RECENT-8.BIN

jimloss · Feb 19, 2018

Recent-7.bin looks to be the correct log. It's a one-way flight that ended with an EKF failsafe which results in an automated (rough) landing. Hopefully someone can determine why it happened.

David Boulanger · Feb 20, 2018

I looks like motor #1 to me. Anytime I see a motor max out like that when things go bad it is usually the culprit. 3 and 4 are working hard for stability but 2 slows way down because 1 is not helping but being asked to run full speed. My 2 cents.

hardhat068 · Feb 20, 2018

David Boulanger said:
I looks like motor #1 to me. Anytime I see a motor max out like that when things go bad it is usually the culprit. 3 and 4 are working hard for stability but 2 slows way down because 1 is not helping but being asked to run full speed. My 2 cents.

That's interesting. I think the video backs up what you are seeing. The quad appears to dip toward the front right when it starts the violent spin, which is where #1 is located. What is odd is that #1 survived the crash, and it appears to be working ok after I put everything back together during a Solex motor test.

Here is the video.

I am wondering if there some strange interference going on at this location. This spot is very very close to the spot where the quad fell and crashed back in late October

David Boulanger · Feb 20, 2018

Look at the RC OUT for motors 1 - 4 on Mission Planner. Motor one was not carrying its weight in my opinion. I am not a master log reader. I just look for stuff that is out of the ordinary and try to make sense of it.

David Boulanger · Feb 20, 2018

Watched the video. I can hear motors 3 and 4 pulsing trying to help.

David Boulanger · Feb 20, 2018

3DR Motor Pod for Solo Quadcopter (CCW) AW11A B&H Photo Video. Motors are out there.

hardhat068 · Feb 21, 2018

David Boulanger said:
Look at the RC OUT for motors 1 - 4 on Mission Planner. Motor one was not carrying its weight in my opinion. I am not a master log reader. I just look for stuff that is out of the ordinary and try to make sense of it.

Thank you David. That was a big help.

carpy · Feb 21, 2018

Agree with David, motor #1 (3rd column) is trying to stay relevant. 1825 is balls to the wall.

RCOU 160454012 1587 1640 1527 1623
RCOU 160571119 1704 1605 1566 1622
RCOU 160685594 1825 1536 1464 1553
RCOU 160796810 1825 1393 1543 1508
RCOU 160908534 1825 1137 1467 1466
RCOU 161021182 1815 1104 1463 1479
RCOU 161134109 1814 1104 1451 1492
RCOU 161247597 1825 1265 1425 1552
RCOU 161362214 1825 1561 1588 1758
RCOU 161476939 1825 1645 1642 1796
RCOU 161591769 1825 1283 1650 1536
RCOU 161706951 1778 1104 1544 1463
RCOU 161820585 1825 1250 1530 1638
RCOU 161934984 1825 1473 1625 1608
RCOU 162046046 1825 1324 1548 1468
RCOU 162161568 1825 1379 1579 1472
RCOU 162276123 1825 1359 1584 1451
RCOU 162389429 1811 1104 1552 1380

carpy · Feb 21, 2018

I wish Google Earth had a quad instead of a plane--but you get the idea.

David Boulanger · Feb 21, 2018

carpy said:
I wish Google Earth had a quad instead of a plane--but you get the idea.

I don't know how to do this graphic representation.

carpy · Feb 26, 2018

David Boulanger said:
I don't know how to do this graphic representation.

In Mission Planner, went to DataFlash Logs tab, Create KML + gpx button, opened dataflash log and after a bit the KML file should be located in the same dir as the dataflash log.
In Google Earth Pro, File | Open and under Temporary Places | kml file | Log | Planes I put a checkmark near the planes I wanted visible.
Kinda cool.

JBAlaska · Feb 27, 2018

Have you found a fault in the Solo or motors? Was that the same gated compound that you flew towards, Looks to me like you were shot down with a 2.4GHz scrambler... Twice. Prolly not but it looks a bit fishy to me.

hardhat068 · Mar 9, 2018

JBAlaska said:
Have you found a fault in the Solo or motors? Was that the same gated compound that you flew towards, Looks to me like you were shot down with a 2.4GHz scrambler... Twice. Prolly not but it looks a bit fishy to me.

I was thinking something similar. Two fall incidents in the same field??
All the motors appear to work fine now (except for the two that I had to replace due to damaged housings).
I am staying away from that field from now on!