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10-15-2005 10:16 PM  13 years agoPost 1
JKLman

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Stockholm - Sweden

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Hi
I was wondering how far from the center of the servoarm the ballink should be. Is longer arm better or worse? Is it different on different servos (same heli)?
It is a T-rex with HS-55 servos and eccpm setup.

JKLman on Efnet

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10-15-2005 10:38 PM  13 years agoPost 2
Rum95

rrApprentice

Puerto Rico

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Hi JKLman;


You should check out trextuning.com, it got step by step installation instruction.
From trextuning;

"The next sequence of pictures show the installation of the control rods for the cyclic controls.
Note that the cyclic controls are on the inner most holes of the control horns.
The trex has VERY sensitive cyclic so this is the only option unless you want a hyper sensitive heli."

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10-16-2005 08:29 AM  13 years agoPost 3
JKLman

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Stockholm - Sweden

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This is a eccpm setup (it's the kind of setup where the servoarms link directly to the swashplate) so I guess it has to have the same holes on all the servos. If I put it on the inner holes on a eccpm setup on the big arms with the hs-55 will the pitch be enough? I guess bigger servo like the HS-56 can handle longer arms to gain speed. But the weaker HS-55 has to have shorter arms. What is a good arm length? Is it when I have like 60-70 (out of 100) set in the radio in swash menu for the pitch and get about +/-10 in pitch?

JKLman on Efnet

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10-16-2005 02:49 PM  13 years agoPost 4
Gary Hoorn

rrKey Veteran

Annapolis Maryland USA

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If you are talking about the XL CDE CCPM setup the HS55 servos have plenty of power. I have over 80 flights on mine now! I am using the longest servo arms that come with the 55's and the ball is mounted on the second hole in from the end. Cut off the end of the upper servos output arm carefully and you will clear the canopy, one of the reasons i used the 55's instead of the 56's I have lying around.
Gary.

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