[droner]

hello
am using cc3d openpilot with librepilot software .
this is my first time doing this , I built the quadcopter with 3S battery and 1000KV BLDCs, an 30A ESCs (the yellow ones) .
after completing the setup it seems to respond to the commands from the RC transmitter .
but it tries to flip over every time I try to take off.
like one of the motors is not fast enough.

what I observed was that when powering up the drone the ESCs beep and the motors turn a little except for the one that seems week on take off.
can you please help.

[utoedter]

Hi,

Dismount propellers, check the motor speed at the output page, all motors shall behave same. If not calibrate all ESC.  Check motor direction and if the correct propeller is tight mounted.

Udo


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[TheOtherCliff]

Here are a few other reasons besides the good ones Utoedter listed

Fix Instant Flip and Learn to Fly
https://forum.librepilot.org/index.php?topic=4408.0