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Level Tool on Copter Arms

I am using the level-tool on the copter arms i.e. the hollow metallic arms that makes the x.

One is perfectly leveled, and the other is off (not seen by unaided eye, detected only thru the level-tool). 

I am wondering if the software that stabilizes th

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GPS accuracy

In mission planner I see the copter in our farm some 10 to 20 meters misplaced on google earth.

Is this a software issue or GPS accuracy.

Also it seems the orientation of the copter is off by good 30 degrees

D

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ALT_HOLD lift off

Could I use ALT-HOLD for under 10m lift offs i.e. place the copter on the ground and push the throttle stick up.

If not what mode can I use to assist in such lift-off.

I see in many video of ArduCopter people do clean vertical lift-offs indoors. When I

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Simple vertical lift off

Hello 

Ok now that I am out of the abyss of ESC calibration:

Could someone let me know how to make very very simple vertical lift offs, and other simple missions. 

The simpler the better. I got sonar and GPS, would appreciate to learn from the gurus her

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Motor beeps at take off

Hello

I am testing the arducopter for the first flight and all is well with arming the motors with Dx8 and seemed to be ok.

However all of a sudden in one of the trials three of the motors started beeping as soon as the quad batteries plugged.

One motor

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DX8 telemetry module and Arducopter..?

   Hi all.  Happy holidays.  Im a super noob that just got his first r/c this last monday.  Built and solders the puppy in one longgggg night.  :)  Im trying to figure out how to connect my dx8 telemetry module to the oil pan..  I know there is the 4

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