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kelmonroe(at)comcast.net
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 Posted: Mon Oct 13, 2014 4:03 pm Post subject: CJ ailerons |
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When my control stick is in the center, the right aileron is down 7/8" and the left aileron is up 7/8". Does anyone know what adjustment I can make so the ailerons are in sync with the control stick.
Thanks. Kelley
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cjpilot710(at)aol.com
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| Posted: Mon Oct 13, 2014 4:37 pm Post subject: CJ ailerons |
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First of all, does the airplane fly level with when you release pressure on the stick and the aileron are still displaced that much? 7/8" sounds like a lot to me.
You can make adjustment out at the aileron. You can drop down a inspection door on the wing just inboard of the aileron. There you will see a push pull tube from a bell crank. The forward end bearing is riveted, however the other end that attaches to the aileron is threaded and can be adjusted there. I didn't look but I believe there are other adjustment points along the whole control run of push rods. It might be in the belly where the stick's torque tube links up with the push pull tubes to the aileron bell cranks. Hope that helps.
Jim "Pappy" Goolsby
In a message dated 10/13/2014 8:03:48 P.M. Eastern Daylight Time, kelmonroe(at)comcast.net writes:
| Quote: | When my control stick is in the center, the right aileron is down 7/8" and the left aileron is up 7/8". Does anyone know what adjustment I can make so the ailerons are in sync with the control stick.
Thanks. Kelley
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wlannon(at)shaw.ca
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| Posted: Mon Oct 13, 2014 6:58 pm Post subject: CJ ailerons |
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Kelley;
Is there any history behind this? Was there work done on the ailerons or control system? Very strange, that is a huge discrepancy.
Walt
From: Kelley Monroe (kelmonroe(at)comcast.net)
Sent: Monday, October 13, 2014 5:02 PM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: CJ ailerons
When my control stick is in the center, the right aileron is down 7/8" and the left aileron is up 7/8". Does anyone know what adjustment I can make so the ailerons are in sync with the control stick.
Thanks. Kelley
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jackpot
Joined: 13 Jul 2010
Posts: 65
Location: Las Vegas, Nevada
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| Posted: Mon Oct 13, 2014 7:14 pm Post subject: CJ ailerons |
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KELLY. There is a pair of bell cranks in the belly that connect to the torque tubes, that the control sticks are mounted in. Take the belly panel off that covers the fuel header tank and look up along the left side of the header tank. You will see two bell cranks the fwd one connects to the torque tube that the control sticks are mounted to. I can't remember if the is an adjustment rod between the bell crank and the torque tube. If so you should be able to adjust the linkage so that when the control stick is in neutral, the ailerons should be in neutral also. I was just working up in that area as I just installed a roll servo for my autopilot on the short linkage between the two bell cranks. Good luck on your quest.
Gary. LAS. CJ N22YK
Sent from my iPad
On Oct 13, 2014, at 20:57, Walter Lannon <wlannon(at)shaw.ca (wlannon(at)shaw.ca)> wrote:
[quote] Kelley;
Is there any history behind this? Was there work done on the ailerons or control system? Very strange, that is a huge discrepancy.
Walt
From: Kelley Monroe (kelmonroe(at)comcast.net)
Sent: Monday, October 13, 2014 5:02 PM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: CJ ailerons
When my control stick is in the center, the right aileron is down 7/8" and the left aileron is up 7/8". Does anyone know what adjustment I can make so the ailerons are in sync with the control stick.
Thanks. Kelley
[b]
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kelmonroe(at)comcast.net
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| Posted: Tue Oct 14, 2014 2:09 pm Post subject: CJ ailerons |
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I had all the aileron push rods out from wing bell crank to wing bell crank. I have tried to adjust the rods to get the ailerons in neutral and the stick in neutral at the same time. Neutral on the stick is about 1" off center to the left. If I put the stick in the center the ailerons are in neutral but the stick will not stay there and it falls off to the left about 1". So bottom line is I need to move the stick neutral to the center. Any help would be appreciated. Thanks Kelley
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wlannon(at)shaw.ca
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| Posted: Tue Oct 14, 2014 5:49 pm Post subject: CJ ailerons |
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Hi Kelley;
It would appear you do not have a problem. Neutral is center.
The reason the stick falls to the left is due to the way the front and rear brake cables are attached to torque tube. The weight of the cables and housings is enough to cause the stick to fall slightly left.
It can be improved somewhat by careful positioning and attachment to the torque tube but is not really a problem (unless the cables have come loose and moved further from center).
In flight the neutral positioning of the ailerons (that is the aileron position that will result in wings level with equal fuel, stick free and zero yaw maintained with rudder at the normal cruise speed) is controlled by adjustment of the aileron trim tabs.
It takes VERY small tab adjustments to accomplish that. Do the aileron and rudder trim checks on nice smooth day. Set elev. trim for level flight. For the aileron hold the heading with rudder, stick free and note any roll. For the rudder hold the wings level with aileron and note heading change. If necessary adjust both aileron tabs just a little bit and note that to lift the wing you adjust the tab upwards. To move the nose right adjust the tab to the left.
Chances are the tabs are already good.
Cheers;
Walt
From: Kelley Monroe (kelmonroe(at)comcast.net)
Sent: Tuesday, October 14, 2014 3:07 PM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: CJ ailerons
I had all the aileron push rods out from wing bell crank to wing bell crank. I have tried to adjust the rods to get the ailerons in neutral and the stick in neutral at the same time. Neutral on the stick is about 1" off center to the left. If I put the stick in the center the ailerons are in neutral but the stick will not stay there and it falls off to the left about 1". So bottom line is I need to move the stick neutral to the center. Any help would be appreciated. Thanks Kelley
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cjpilot710(at)aol.com
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| Posted: Wed Oct 15, 2014 10:15 am Post subject: CJ ailerons |
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Your problem is the weight of the brake handle. It is enough to pull the stick to the left. Mine does the same.
Pappy
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