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T-REX 550 › Disconnecting tail control rod
08-02-2011 02:01 PM  7 years agoPost 1
rushpilot

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Brewer, Maine

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I'm getting ready to install the CF tail control rod and was wondering if any of you have mounted the tail servo underneath the bracket and placed the linkage ball facing up? Also, what is the best way to get the tail rod end ball link disconnected from the ball itself? I'm tired of marking up the plastic link because the tight space will not allow the ball link pliers to fit.

“The helicopter is evidence of how man's imagination can be given physical form.”

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08-02-2011 03:37 PM  7 years agoPost 2
Heli-on

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Southern Cali, CA - USA

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I would think the limitation is the height of the control rod guide. If you start messing with that angle, you're going to need a shorter (longer?) support. You want as straight of a shot as possible. I don't have a 550, but you're making it sound like the ball gets mounted on the top of the arm (the side with Align printed on it).

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T-REX 550 › Disconnecting tail control rod
08-02-2011 03:56 PM  7 years ago •• Post 3 ••
rushpilot

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Brewer, Maine

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I have had the ball facing down on the servo arm so that the link doesn't bind on the tailboom block. I have reinstalled the tail servo from the bottom side of the servo case, which should allow for the ball on the servo arm to be facing up. My issue is, there is no easy way to disconnect the control rod link from the servo horn ball without marking it up. I can always remove the tail servo mount from the frame, remove the servo horn, and then disconnect the link, but that is a pain in the butt!

“The helicopter is evidence of how man's imagination can be given physical form.”

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08-02-2011 05:12 PM  7 years agoPost 4
Heli-on

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Southern Cali, CA - USA

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Oh, okay - you're talking about the front servo end.

Like I said, as straight of a shot as possible is what dictates how you want it to be. Sounds like a PItA to do it the way you want to do it, but if that's giving you the straight shot, then you have to suck up the loss of convenience. How often does it come off, anyways?

Have you considered maybe aileron-style links? Dubro makes an awesome lock-latch one called Kwik-Link (819).

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08-02-2011 05:58 PM  7 years agoPost 5
rushpilot

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Brewer, Maine

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The only time I have to pop the link off is during a repair, rebuild, or rigging adjustment. I'm just wondering how other people diconnect their tail control rod from the tail servo horn and if they have figured out an easier way to do it. Thanx for the tip on the Kwik-Link, I'll check it out.

“The helicopter is evidence of how man's imagination can be given physical form.”

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08-02-2011 06:41 PM  7 years agoPost 6
Heli-on

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Southern Cali, CA - USA

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No problem. I use them on scale builds when I want to get an absolute straight shot to the control arm (on the rear). Just make sure you're using a servo arm (not wheel) if you try this up front.

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08-02-2011 06:58 PM  7 years agoPost 7
rushpilot

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Brewer, Maine

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Any 550 pilots out there have any advice for me? I like the idea of the tail servo being protected inside the frame, but that doesn't leave much room to work in there.

“The helicopter is evidence of how man's imagination can be given physical form.”

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