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Heli wants to tip on its side with Spirit GT
Posted: Mon 06. Sep 2021 13:22:30
by Ahmad.Kassem
Today I went to maiden my 700 Gasser after finishing the assembly, I started the Heli and when I try to take off the Heli will tip to the side and i can see that the swash is completely tilted, I restarted the unit several time with no success, my unit orientation is correct in the software, unit is in upright position with wires facing the back, my channel mapping is all correct.
I attached a picture of the setup as well as setup files and logs file.
Note that the vibration feels normal compared to my other gassers, I also activated extended processing.
Re: Heli wants to tip on its side with Spirit GT
Posted: Mon 06. Sep 2021 13:28:03
by ZeXx86
Hello,
can you see when the problem appear?
Is it before spoolup or during?
Can you confirm that the compensation of the swashplate is working properly on the bench?
Re: Heli wants to tip on its side with Spirit GT
Posted: Mon 06. Sep 2021 13:33:04
by Ahmad.Kassem
The problem appears when the heli becoms light on the skids the you can see the swash tilting to the side, unit compensation on the bench is correct i checked it several times.
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Re: Heli wants to tip on its side with Spirit GT
Posted: Mon 06. Sep 2021 13:48:40
by Ahmad.Kassem
Anything else i need to check?
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Re: Heli wants to tip on its side with Spirit GT
Posted: Mon 06. Sep 2021 14:17:34
by ZeXx86
I checked the logs but they seem to be corrupted somehow or there is something very interesting happening.
When RPM is getting higher all readings are going crazy. Also all readings from receiver are abnormal once there are higher RPMs.
It seems as high voltage is going to the rest of the electronics.
Please make sure to route HV cable as far as possible from the rest of the cables otherwise it can cause crash and/or damage to the rest of electronics.
Re: Heli wants to tip on its side with Spirit GT
Posted: Mon 06. Sep 2021 14:22:17
by Ahmad.Kassem
By HV cables you mean the ignition cable to the spark plug? It is far already, check the image.


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Re: Heli wants to tip on its side with Spirit GT
Posted: Mon 06. Sep 2021 14:45:33
by ZeXx86
Thank you for the details,
I want to ask if you are running the latest 3.3.2 firmware and software? - because of the data in the log
Re: Heli wants to tip on its side with Spirit GT
Posted: Mon 06. Sep 2021 14:55:47
by Ahmad.Kassem
Yes i am running 3.3.2-r2
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Re: Heli wants to tip on its side with Spirit GT
Posted: Tue 07. Sep 2021 6:03:05
by Ahmad.Kassem
ZeXx86 wrote:Thank you for the details,
I want to ask if you are running the latest 3.3.2 firmware and software? - because of the data in the log
Any update?
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Re: Heli wants to tip on its side with Spirit GT
Posted: Wed 08. Sep 2021 10:57:48
by Ahmad.Kassem
Dear ZeXx86
I did another try today with the same result, i attached the new logs with 2 videos one showing what happens when engine is off and the other when the engine is running.