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Need some help with new to me setup - 12/15/2012 9:53 PM   
luckymacy


 

Posts: 118
Score: 100
Joined: 10/9/2002
Last Login: 5/21/2013
From: walllingford, PA, USA
Status: offline 		How do I troubleshoot an electric plane when I don't have any parts to swap out? I bought a used Sebart Wind 110 I which supposedly has new Hacker A50-16L V2 (it does look shiny new and 'spotless') and the same props, ESC and battery packs that the plane supposedly flew with in copetitions. In other words, it should have been a perfectly working set already installed.

I took it out for a fist flight (for me) today. I had a amp meter installed and was doing a ground check. I do not have any experience with setups this large (8s) so was proceeding extra cautiouslessy. Anytime on the ground I got near 30 amps the motor made a screetch sound and shut down. I removed the back support plate as I was suspicious it was causing some drag/binding but it made no differenc. In my smaller electric planes that's usually been due to overspeeding or not enough load on the motor (ie, the sound doesn't happen when actually flying, it only happens on the ground). I am hoping that the motor won't make that sound and fly fine but I won't risk flying it until I know for sure. Any ideas on how to troubleshoot or verify the setup is fine?


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lucky macy

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RE: Need some help with new to me setup - 12/16/2012 10:09 PM   
cubaneight


 

Posts: 106
Score: 101
Joined: 5/1/2004
Last Login: 5/16/2013
From: Colchester, UNITED KINGDOM
Status: offline 		Reckon the timing is set incorrectly. Try setting to auto or high on the ESC. Having the motor grossly over-propped will also give the problem, but as you are still using the original prop, then check that you haven't altered the timing by mistake when you set the ESC to your tranny.

http://www.hobbyking.com/hobbyking/forum/forum_posts.asp?TID=3627 This is typical of the problem.

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