Replies to This Discussion

Permalink Reply by LIM Hun Pheng on December 3, 2011 at 11:01pm

Haha.... just saw the latest post by Jason on ACM 2.0.55. Might solve the behavior problem.

Permalink Reply by steve F11music.com on December 4, 2011 at 4:27am

If not the carefully check yor props. Swap one for another and see if the lean changes sides indicating a weak prop.

Permalink Reply by Tomas Soedergren on December 4, 2011 at 6:26am

The thrust output curve (thrust / prop. speed) is very unlinear, and at low prop speed less steep. Maybe due to manufacturers variations in propeller or motor characteristics your right pair responds faster at spool up. Then when trying to compensate,the left motors still work in the lower more flat curve, and thus dont respond with the authority needed to catch up with its right hand brother?

This theory could be tried by swapping left and right drive packs with each other (motors, props, esc), and check if the behaviour is reversed.

But I understand if you don´t feel like messing with that ;)

Permalink Reply by Squalish on December 4, 2011 at 11:41am

Prop and motor are obviously the first thing you'd suspect.  After that, perhaps a mechanical misalignment of the arms, or a problem with the mounting of the IMU.

But if it's persistent from airframe to airframe, perhaps something with the controller's default at-rest roll setting could be the culprit?

Permalink Reply by LIM Hun Pheng on December 6, 2011 at 7:54am

Thank you all for your kind replies. Cheers