Discussions

Strange Yaw issues with Arducopter 2.8

Posted by Jamie Ahmed on October 24, 2012 at 9:32am

Hello -

I have been getting into FPV lately, so my need for reliable flight has increased exponentially!

Anyway, I just recently upgraded from an APM 1.4 + oilpan to an APM 2.5. Rest of specs:

KDA20-22L motors

Turnigy Plush 18A ESCs w/ SimonK firmware

10x4.5 props gemfam props

APM2.5

uBlox LEA-6 GPS

900MHz Xbee pro

Randomly, the copter will start yawing uncontrollably. It spins several times and then finally stops. I can't recall if it is spinning the same direction each time or not, but when FPVing this is scary! Anyone experienced this issue?

Any help is much appreciated.

Thanks,

Jamie

You need to be a member of diydrones to add comments!

Join diydrones

apm25, fpv, issue, yaw

Email me when people reply –

Replies

AntimatterCrusader October 25, 2012 at 1:45pm

I am a newbie, but I've had some yaw related issues because I placed power wires too close to the manometer. The power flowing through the wires would screw up the heading and cause it to yaw... not like what you describe, but it's a thought.

This was especially true when applying sudden throttle and more current went through the wires.

I moved the wiring away from the APM and the problem was resolved.
Mike Boland October 24, 2012 at 11:51am

This is a common effect when your battery gets low and one motor or ESC stops responding or slows down.

Download your logs and have a look, they will show you what is happening.

You may need to go into Logs and enable motors to check the output.

Or just Terminal/Logs/enable all