Rudder issues with MWC 328p

[Element-RB]

Howdy,

I have an issue that is strange...:

Hardware:

Hobby King MWC 328p Pro
Crius BT
I2C with GPS
Turnigy 20amp Hexfet ESCs
NTM Propdrive 1100kv
props 9*4.5
Running MW 2.1

Issue:

All appears correct on MWConfig via bt on the android. The copter throttles up, it pitches and rolls correct. But once it has enough throttle to generate lift it tries to yaw to the right. left and right yaw dont seem to work right, they are more or less rolling the quad... causing it to fly away lol.

I am experienced enough to bring it down safely... but it is not controllable yaw wise. If i try to yaw it back from the way its trying to fly it takes off harder (rolling)...

Any help would be great.

We have this exact same settings on another quad that does not display the same behaviour.

[Element-RB]

Video of the issue:

http://youtu.be/zmODGBOmuTA

[crashlander]

Wrong direction (and type (CCW, CW)) of propeller rotation?!
Strong tilt of one (or more motors)!?

Regards Andrej

[Element-RB]

So... after much mucking around i have identified that one of the ESC's was over powering the motor.

Had swapped in one of my spare motors and mixed them all up but the issue was the same. Threw on my old KK3.0 board and wow the issue was the same.

Swapped the front left and rear left esc around... and the issue is kinda gone.

Ordered new ESC's from RCTimer today. SimonK flashed 30a =)

Thanks for reading!