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Altitude loss with Yaw- advice needed

Posted by Bart Mowrey on July 7, 2012 at 5:48pm

HI- Ive been having a blast with my new quad but:

Question 1:  there seems to have a tendancy to lose altitude when any yaw is introduced. Granted, it's not extreme, but I had expected it to maintain altitude more exactly than it does. Is this a normal behaviour or one that can at least be addressed with some tuning, and if so, what values would one adjust to achieve it?

Question 2:  Should I add a sonar unit for greater accuracy? Most of this type of flying is under <30m, which as I understand it, is the floor for the barometric accuracy while the sonar is accurate to ~10cm whiile under ~ 30m?

Please tell me if these assumptions are incorrect or my expectations too great.

Thanks in advance,

Bart

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Tags: doritos, altitude, bitchslap, bonehead, deacceleration, deceleration, group, loss, quad, sonar
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Replies

  • Bart Mowrey May 1, 2013 at 9:43pm

    No such luck. Ive actually been rebuilding mine from the ground up with different escs and see if that doesn't help resolve a few problems with sync holding in the stock units flashed w simonk. Ill update you if that has helped resolve most of my issues.

  • Sean Miles May 1, 2013 at 9:31pm

    I am having a similar issue with the both my Quad and Hex (APM2.5 with latest firmware)

    As soon as I apply any Yaw it will lose altitude.

    Did you fix the issue? If so How?

    Sonar only works with Alt Hold and loiter as far as I know.. (I have sonar on the Hex)

  • Bart Mowrey July 7, 2012 at 5:50pm

    I should also add, that this is a consistant thing, not just thick-thumbing the throttle( errr entirely)

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