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HomeAircraftHelicopterAlignT-REX 700N › Flybar Control Arms breaking!!
04-26-2009 08:57 AM  9 years agoPost 21
nadavbarak

rrApprentice

Israel

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Had the same problem twice...
Hello eperez74,
can you tell that the problem has solved?
I dought that the problem was with the washout binding.
Alon had the same problem. twice at the last month, on two different helicopters (trex700).

Best Regards,
Nadav Barak.

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04-27-2009 01:17 AM  9 years agoPost 22
sonofcar

rrApprentice

paso robles, ca

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yep i had the same problem, three cages broke in three months. My fix was to get rid of all that flybar stuff V Bar

Carson Clowes

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04-27-2009 01:39 AM  9 years agoPost 23
LONEWOLF2440

rrElite Veteran

MYRTLE BEACH S.C

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thanks carson lol for the fix but must admit it would remedy it

MIKADO LOGO 600 TREX 550

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04-27-2009 02:51 AM  9 years agoPost 24
kraffty

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princess anne md.usa

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Had the same problem. The fix after breaking 3 sets was to decrease cyclic travel. I adjusted it initialy so that the cage just missed the blade grip. But when the heli flew and the flybar pivited full range the flybar arm hit the grip putting a load on it and snapping. How you need to set it up is to give cyclic throw max up to the grip when moving flybar to max pivot and keeping clearance. Yes to eliminate the flybar would fix it because you eliminate these parts.

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04-27-2009 05:32 AM  9 years agoPost 25
eperez74

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Tulsa, OK

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I broke one more so I dropped my aliron and elevator cyclic throws to 45% (was running 55% before) and so far no more broken flybar cages.... knock on wood.

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05-27-2009 02:35 AM  9 years agoPost 26
eperez74

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Tulsa, OK

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Update the real fix to the weak arms. Replace stock ones with G-Force GFT7128 Hi-Tilt Flybar conversion.

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05-27-2009 03:42 AM  9 years agoPost 27
Mike Bilyk

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Tulsa, OK - USA

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i just broke one this weekend.

where did you get that?

send me a pm...

AMA # 617778
Team MasterCard

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05-27-2009 03:50 AM  9 years agoPost 28
eperez74

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Tulsa, OK

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05-27-2009 09:32 PM  9 years agoPost 29
QuickSilver

rrVeteran

Cherry Hill, New Jersey

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control arms breaking
If this is an issue Align needs to stop using what looks to be pot metal on those arms, they shouldn't be breaking. I don't care how hard you fly, its a materials issue and nothing else IMHO.

Kyle

Stanley Bostitch
Proto Tools

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05-27-2009 10:50 PM  9 years agoPost 30
eperez74

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Tulsa, OK

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I agree its a Align quality issue and they should adress it.

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05-27-2009 11:53 PM  9 years agoPost 31
jelkins

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Oklahoma City, OK - USA

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Right... because the other posts about binding and the fact the g-force is sloped down has nothing to do with it... it is quality control.

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05-28-2009 12:06 AM  9 years agoPost 32
nadavbarak

rrApprentice

Israel

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we broke 4 cages at the last 2 months.

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05-28-2009 01:47 AM  9 years agoPost 33
caseyjholmes

rrElite Veteran

Portland, Oregon

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If you guys have your cyclic over 7* and pitch over 11* it can bind in the stick corners..
(maybe causing this?)

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05-28-2009 04:55 AM  9 years agoPost 34
Helibabe

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Boston, MA

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700 issues
[quote]If you guys have your cyclic over 7* and pitch over 11* it can bind in the stick corners
[quote]

Not likely the plastic ball links that control the flybar would break before that metal would fail. What's that old adage? "You get what you pay for"

CT

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05-28-2009 05:19 AM  9 years agoPost 35
baddynergy

rrElite Veteran

sierra madre, ca- usa

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If you guys have your cyclic over 7* and pitch over 11* it can bind in the stick corners..
That would depend on of you did or did not modify the front link and drop the swash down 2mm. 12 and 8 is easily achievable with no binding.

The bars are breaking from hard use. I saw MikeBilyk's flybar cage this weekend. It was fatigue, no wear marks on the balls and no signs of binding. Its just a good thing he caught it on the ground before he went up again..

**Unattended children will be givin a shot of espresso and a puppy**

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05-28-2009 12:46 PM  9 years agoPost 36
rcnut

rrElite Veteran

Rockford, Illinois

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Update the real fix to the weak arms. Replace stock ones with G-Force GFT7128 Hi-Tilt Flybar conversion.
eperez74, does it change the way it feels??

I ordered a set along with the G-Force Tuner mixing and washout arms (part# GFT7126).

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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05-28-2009 01:09 PM  9 years agoPost 37
Against Gravity

rrVeteran

Pottstown PA

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Front link Mod ??
Baddynergy
Could you explain this modification, so we can all benefit

Thanks

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05-28-2009 02:08 PM  9 years agoPost 38
baddynergy

rrElite Veteran

sierra madre, ca- usa

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Could you explain this modification, so we can all benefit
You cut down the front elevator link 2mm and adjust the aileron links shorter by 2mm to level swash. In its original form the swash sits too high to get as much pitch as possible, so you drop the swash so you can run more.. This was talked about quite a bit when the 700 first came out.

**Unattended children will be givin a shot of espresso and a puppy**

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05-28-2009 02:15 PM  9 years agoPost 39
Against Gravity

rrVeteran

Pottstown PA

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Front link Mod ??
So what kind of pitches are you getting now? Does it relieve some of the binding on the cage?

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05-28-2009 03:18 PM  9 years agoPost 40
baddynergy

rrElite Veteran

sierra madre, ca- usa

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I am getting 12 and 8 with absolutly no binding with capability to maybe get 14 and 8. No it does not relieve the stress on the cage, IMHO cheap material was used here. It is also known for the trex500 to break the cage in the same place.

Even with this mod, my flybar cage is starting to get stress cracks. So its grounded until I get the g-force cage.

**Unattended children will be givin a shot of espresso and a puppy**

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HomeAircraftHelicopterAlignT-REX 700N › Flybar Control Arms breaking!!
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