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Old May 19, 2012, 02:30 PM
Registered User
Germany, SL, Rehlingen-Siersburg
Joined Sep 2011
106 Posts
Yaw problem with HK KK Board V2.1, KK firmware 4.7


the controller mentioned above worked fine before, but was lying in its box for a while. Now I installed it in my H-Quad and started to test everything, when I noticed the motors only react to left yaw input and counteract right (CW) yaw rotation only. Pitch and roll work as expected.
I would be very thankful for any ideas.

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Old May 21, 2012, 03:29 PM
KK Tri Flyer
mattcro's Avatar
United Kingdom, Scotland, Glasgow
Joined Feb 2012
351 Posts
Do you have 2 motors spinning faster than the other pair (aka lazy motor)? You might need to add some rudder subtrim until the motor speeds balance out. Check if you have some trim/subtrim on the pitch/roll, and add a similar amount for rudder.
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Old Jul 18, 2014, 03:37 PM
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Belgium, Walloon Region, Andenne
Joined Apr 2012
3 Posts
what about a double check on the direction of each motor spinning?
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