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King II/III/IV and CP 2/3 E-Sky King 2, 3, 4 plus CP 2 & 3


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Old 09-26-2009, 06:22 AM   #1 (permalink)
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Default Set up help

Ok - I have got the K3 airborne at last - into a hover at least.

I noticed it still tends to want to rotate anti-clockwise but does so in sort of 'jerky' movements. Not wagging bac and forth, just a staged and gentle rotation.

Now I can control and reverse this, as my HBFP needs constant tail input, but I guess it should really hold very steady.
It has a BuzzFly HH gyro and I am using the BuzzFly 8Ch Tx/Rx with the HH gain set to 70%.

My question is - is that something I should keep trying to minimise by moving the rudder servo minute amounts, or is it best to trim it out? If the answer is trim, would that be sub trim or main trim?

Thanks for any advice
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Old 09-26-2009, 09:45 AM   #2 (permalink)
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I always use the sub trim for my helis instead of the main trim...
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Old 09-27-2009, 06:33 PM   #3 (permalink)
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For a gyro in HH mode, trim (sub or otherwise) should not be used to attempt to correct a problem.

If the gyro doesn't hold, then the gyro isn't setup correctly, the mechanics (including tail rotor speed) aren't setup correctly, the radio isn't setup correctly, or the gyro is a POS
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Old 09-28-2009, 05:41 AM   #4 (permalink)
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Did you set it up in rate mode first?

Dusty
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Old 09-28-2009, 05:29 PM   #5 (permalink)
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Hi Dusty - yes I did - and re-set it again today.....
Need to hover test tomorrow if it's not too windy.
I'll post back when I get a chance.
Thanks for the input
Cheers
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