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Unstable Flight
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PaulT27
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May 27, 2012 - 12:18 am

Hi everyone i'm new to this forum but i have been flying the s107g since Christmas and then my dad and i started selling them after we found some at wholesale prices, over last few months i have fixed and modded the s107g and 108g countless times but one problem has me puzzled; the helicopter will start to drift after coming out of a turn and continue to drift until it's completely uncontrollable the common fix it to replace the top part of the main rotor because the small black plastic tabs break and the blades are not as stable any longer. This is not the case, there is no visible damage to the top of the rotor or anything really. my original theory was that the battery pushed to one side and caused the helicopter to be unbalanced from left to right, i tested this quite extensively and came up with no results and tried it on a fully functioning one and it wouldn't recreate the drift. So my new theory is that the inner shaft is bent very slightly. Can anyone confirm or deny this solution? 

 

Thanks So Much,

Paul 

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Supernova
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May 27, 2012 - 12:38 am

Hi Paul and a big welcome to the Forum Laugh, I think you could be right with the bent shaft, but first is there a wobble or vibration at slow throttle this would indicate a bent shaft? if not then have a look at the base of the main shaft, has it come out of the motherboard location hole? this could be because of gear shift, check all the screws are tight and not a bit loose.

Good luck hope this helps.

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PaulT27
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May 27, 2012 - 11:23 pm

There was a wobble at low speed, i never would have noticed. im going to order a new shaft from amazon (unless someone knows a better place to get them). Thanks for the quick, informative and friendly reply its much appreciated.

 

Paul

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Syma Freak
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May 29, 2012 - 10:26 am
Member Since: November 26, 2010
Forum Posts: 1432
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PaulT27 said
There was a wobble at low speed, i never would have noticed. im going to order a new shaft from amazon (unless someone knows a better place to get them). Thanks for the quick, informative and friendly reply its much appreciated.

 

Paul

http://syma107.com/forum/frequ.....ft-repair/

There are links to a few buying options and video how to repair main shaft by Supernova

"Fly like a butterfly sting like a Syma" http://syma107.com

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