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s107g started flying erratically
Tags: Syma X9
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webrest
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Guests
February 5, 2014 - 6:23 pm

My fabulously entertaining 107 has started to fly erratically.

Immediately after take off it starts getting a mind of its own and wobbling violently till it crashes.

Could this be something to do with the gyro mechanism and if so how does the gyro work."

Or is it part of the motherboard electronics?

Dave

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Syma Freak
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February 6, 2014 - 12:35 am
Member Since: November 26, 2010
Forum Posts: 1432
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Hi, sounds like a dog bone problem, check this - here via Supernova

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

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CPD
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Guests
February 6, 2014 - 3:36 am

Yeah, check the dogbones--probably just knocked one loose if not off. They only really need one if you've lost the other, but it's best to have both in case one pops off during flight.

Also, check the pins on the upper main shaft--if those break off, then it's VERY unstable and will crash.

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webrest
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Guests
February 7, 2014 - 7:17 am

CPD said
Yeah, check the dogbones--probably just knocked one loose if not off. They only really need one if you've lost the other, but it's best to have both in case one pops off during flight.
Also, check the pins on the upper main shaft--if those break off, then it's VERY unstable and will crash.

Thanks but pins OK

Dave

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webrest
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Guests
February 7, 2014 - 7:20 am

CPD said
Yeah, check the dogbones--probably just knocked one loose if not off. They only really need one if you've lost the other, but it's best to have both in case one pops off during flight.
Also, check the pins on the upper main shaft--if those break off, then it's VERY unstable and will crash.

Have already dismantled the top rotor assembly and rebuilt. All is in order that I can see.

Thanks for the suggestion though.

Dave

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webrest
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Guests
February 13, 2014 - 3:38 pm

Found the problem the locating lugs for the top rotor had snapped off. Hard to find when you don't know what you are looking for.

Have stripped and rebuilt the helicopter now so I do know how things work.

Very impressive toy for the price

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CPD
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Guests
February 14, 2014 - 1:57 am

Good to hear that you solved the problem! Simple and cheap fix, and really quite easy to do.

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Syma Freak
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April 13, 2014 - 1:50 pm
Member Since: November 26, 2010
Forum Posts: 1432
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Well done. ssig_goodjob2

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

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