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Unexpected crash without reason

FlushVision

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With all due respect, Mamarz...

You are losing money because you do not have a backup craft.

If nothing else, a “bind and fly” hull-only kit should still be available (without controller) allowing you to continue to fly and complete your jobs while your first craft is being evaluated and/or repaired. This is assuming you do not need to send the controller along with the failing H.

In situations where your controller is not available or is part of the problem, your business model needs to accommodate with a backup controller as well.

You will find plenty of references to the above, as far as advice for commercial operations.

Just trying to help.

Jeff
I've always banged on about the sensibility of having a back-up aircraft if flying commercially. I have two and I see two as the minimum requirement. I'll be wrapping my business up in November...just not enough steady work at realistic £ rates anymore, but I'll still keep the two aircraft just in case I plunge back into the game again.
 

h-elsner

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This clearly no compass error or something like that. Very strange, because ESC/motors do not report any error but copter goes to free fall. As this is the second time, I guess it is an processor/mainboard error. Flight controller suddenly lost control totally.

This is the second time, I saw a letter from Yuneec Europe. Surprisingly in both cases there are statements in, that do not have any indications in FlightLogs regarding this. Very strange. In both cases the same technician. I wonder if this technician has other sources than the FlightLogs that brings that compass stuff always in his mind.
Remains the question, how an partially calibrated compass can cause a total outage of the flight controller.

br HE
 
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DoomMeister

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I don’t understand what they mean by a partially calibrated compass. The calibration either passes or fails.

There could possibly be information stored in the flight controller itself that the tech is accessing. There has to be memory of some type to hold the firmware. So there has to be a place the calibration data for the compass and accelerometers to be stored.

I’m inclined to surmise that the problem could be data corruption of the compass calibration values as well as the accelerometers and gyros.

The 60 second test flight over the roof of the building was a poor evaluation of completion of repair in my opinion, being a retired electrical technician myself.
 
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With all due respect, Mamarz...

You are losing money because you do not have a backup craft.

If nothing else, a “bind and fly” hull-only kit should still be available (without controller) allowing you to continue to fly and complete your jobs while your first craft is being evaluated and/or repaired. This is assuming you do not need to send the controller along with the failing H.

In situations where your controller is not available or is part of the problem, your business model needs to accommodate with a backup controller as well.

You will find plenty of references to the above, as far as advice for commercial operations.

Just trying to help.

Jeff
This is true but, as this new my activort is starting soon, I can't invest now in a second craft for something that here in Italy is still see not as a work but as a game.

However, I can understand sometimes could be some problems with the goods, even my Canon 6D have had one.

BUT

different is how they resolve it. Canon was so precise and accurately descript what was going wrong, Yuneec didn't reply all my first question in a clear way, and the test was too fast to be drive in a good way.

Doom Meister I think as you: calibration can do right or can go NOT right but, how can I know if it's an HALF CALIBRATION?!
If is a failure firmware I can't know, my H has the last avaible installed.

The fear it can fall again is too big now.. Hope they will consider to change with a new one.
However 2 months is a long time for one problem (and 2 times shipping costs to Germany).
 
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This clearly no compass error or something like that. Very strange, because ESC/motors do not report any error but copter goes to free fall. As this is the second time, I guess it is an processor/mainboard error. Flight controller suddenly lost control totally.

This is the second time, I saw a letter from Yuneec Europe. Surprisingly in both cases there are statements in, that do not have any indications in FlightLogs regarding this. Very strange. In both cases the same technician. I wonder if this technician has other sources than the FlightLogs that brings that compass stuff always in his mind.
Remains the question, how an partially calibrated compass can cause a total outage of the flight controller.

br HE
Helsner, I really don't know why he's thinking about a calibration fail.
I'm sure to do it always in right way:
- far from metallic
- open field (no buildings near)
- neither my smartphone near me (at least 5 meters far everytime).

And I always hear my H restarting good, led plinking in right way and no white main led that identify wrong compass.

However, if compass fail, and I'm on ANGLE mode, why it should be going crazy and fall?

However, will let you know what will be.
 

NorWiscPilot

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Helsner, I really don't know why he's thinking about a calibration fail.
I'm sure to do it always in right way:
- far from metallic
- open field (no buildings near)
- neither my smartphone near me (at least 5 meters far everytime).

And I always hear my H restarting good, led plinking in right way and no white main led that identify wrong compass.

However, if compass fail, and I'm on ANGLE mode, why it should be going crazy and fall?

However, will let you know what will be.
Mamarz,

You might want to check the status LED chart again.

When all is good, an intermittent white indicates the controller sees enough satellites for the smart modes (10 or more).

I believe yellow is the compass warning indicator.

Jeff
 
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've always banged on about the sensibility of having a back-up aircraft if flying commercially. I have two and I see two as the minimum requirement. I'll be wrapping my business up in November...just not enough steady work at realistic £ rates anymore, but I'll still keep the two aircraft just in case I plunge back into the game again.
Indeed, 2 aircraft is the minimum you should consider having if you fly commercially. I too am giving it serious consideration as to whether I will renew my PFCO when it expires next. It's not just the £ rates, it's a lot more than that. I could see the writing was on the wall even when I was completing my PFCO (then PFAW) course back in 2015. Most of the other people on the course were from video production companies. To them using a UAV is just another tool in their box, and potentially taking work away from the little guy. The constraints of the standard permission are another reason. I could bang on but it's really not worth the effort. I think the CAA have pretty much decided to kill off commercial operations using a UAV, even though (they say) that they support them.

Sorry to go off-topic there! I've found my Typhoon H do a few strange things, especially after updates. It's never fallen out of the sky though. In fact I've never had any drone fly way or fall out of the sky and I've owned a few over the years. And as far as I'm aware, no-one has ever been killed by a drone anywhere in the world ever (except by the military kind) and yet if you take notice of the various aviation authorities around the world, apparently, drones are more dangerous than a thermo-nuclear device!
 

FlushVision

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Indeed, 2 aircraft is the minimum you should consider having if you fly commercially. I too am giving it serious consideration as to whether I will renew my PFCO when it expires next. It's not just the £ rates, it's a lot more than that. I could see the writing was on the wall even when I was completing my PFCO (then PFAW) course back in 2015. Most of the other people on the course were from video production companies. To them using a UAV is just another tool in their box, and potentially taking work away from the little guy. The constraints of the standard permission are another reason. I could bang on but it's really not worth the effort. I think the CAA have pretty much decided to kill off commercial operations using a UAV, even though (they say) that they support them.

Sorry to go off-topic there! I've found my Typhoon H do a few strange things, especially after updates. It's never fallen out of the sky though. In fact I've never had any drone fly way or fall out of the sky and I've owned a few over the years. And as far as I'm aware, no-one has ever been killed by a drone anywhere in the world ever (except by the military kind) and yet if you take notice of the various aviation authorities around the world, apparently, drones are more dangerous than a thermo-nuclear device!
Fully agree.
Yes, there are other issues regarding the standard PfCO which I was willing to suffer but it is mainly the fact that no-one in authority seems to be too concerned about addressing the issue surrounding pilots doing paid work without a PfCO and vastly undercutting the legal small businesses to a point where it is no longer possible to compete. And then there are the people who are willing to do work for free or for a swift pat on the back. The way I see the British market now is that only production companies or specialist operators or companies using UAVs as an extra tool in their toolboxes among a range of other tools are likely to make any sort of profit. The likes of me, a one man band, are likely to have, at best, a tough time in the market.
 
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So guys, comed back here for showing you the completely INEFFICIENCY OF YUNEEC SERVICE ON GERMANY.

After the last crash (2nd without reason), about 2 months ago, finally I got my bird back.

They still didn't change the bird but the second inflated battery, and the remote controller. Yes, they changed the CONTROLLER.

So, charged one battery, gone to the field and started it.
Compass calibration: ok. Gimbal calibration : ok.
I wanted to drain one whole battery only in front of my eyes, doing nothing more than up and down, and small circle. Upon my eyes, about 30mts from me.

And?! Wanna know?! The bird CRASHES AGAIN.

Same problem as the last one: start falling down, rotating. And after 4 minutes, like the other times.

This time, even the fall was from 5 meters of altitude, the things gonna be badder: three arms broken,one propeller broken.

Again, I'm really angry. I want my money back, never never never more a yuneec bird.

Now I'll pack and send it back to the seller, wanna get my money back.

I'll attach the log here later, but however I don't want fly anymore with this bird.
 

DoomMeister

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I sympathize for you concerning the support troubles you have had. Be sure to post all of the Remote, RemoteGPS, Sensor, and Telemetry files stored on the new controller. We would love to see the test flights they made after the “repair” as well as the last crash. Especially the test flights!
 
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I sympathize for you concerning the support troubles you have had. Be sure to post all of the Remote, RemoteGPS, Sensor, and Telemetry files stored on the new controller. We would love to see the test flights they made after the “repair” as well as the last crash. Especially the test flights!
Thanks Meister, as i notice the last time, the test flight was only 51 seconds upon their seat, on the roof. Like the other times, seem they didn't notice nothing strange or corrupted but, at this time, i can imagine there's a component that, when on for more time, become hot and start malfunction, but it's only IMHO.

So i'll send you the log in minutes, with some pics, wait my back.
 
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A good test run should last until the battery is at the lowest acceptable level.
We start at 2 meters from the ground to make slow movements, then we go gradually to the maximum speed of the machine, it is not worth going up, but against a distance of 200/300 meters is recommended to see if all the connections are maintained and analyze the data after this first test.
 
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A good test run should last until the battery is at the lowest acceptable level.
We start at 2 meters from the ground to make slow movements, then we go gradually to the maximum speed of the machine, it is not worth going up, but against a distance of 200/300 meters is recommended to see if all the connections are maintained and analyze the data after this first test.
This was my intention. I flyght near me, and not more than 5 meters upper. Started flight forward/backward, left/right, and than in a small circle. But when falled, as the last time, it was standing still cause I was looking at it: seemed not so stable like new...DSC_0892.JPGDSC_0893.JPGDSC_0894.JPG

Intentionally i didn't retract the legs, cause i wanted to preserve the camera.

However: the damage is very few, three arms stop broken and a propeller broken, nothing more seem. But this is not more safe. I don't wanna fly upon house, things or something else with the fear it can hit suddenly.
 
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I fail to understand something , is the same bird each time or a replacement new bird. If it’s the same bird you definitely have an unaddressed problem with it
 
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I fail to understand something , is the same bird each time or a replacement new bird. If it’s the same bird you definitely have an unaddressed problem with it
Dustoff, they changed me this time the controller. The drone is still the same and much probably, they didn't disassembly to inspect.
 
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Dustoff, they changed me this time the controller. The drone is still the same and much probably, they didn't disassembly to inspect.
can’t believe they did not give you a new aircraft. sounds to me like you have a motor flaking out or esc.

either way be nice , push them to provide a new aircraft .
 
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can’t believe they did not give you a new aircraft. sounds to me like you have a motor flaking out or esc.

either way be nice , push them to provide a new aircraft .
I've already requested to the SHOP the substitution, but they still makes annoying answers.

I've received the package from them back, and after my email of yesterday, they answer "the package is still on the way to italy"...
So, with what I've flight? with the GHOST of my drone?!?

-.-'
 

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