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Phil.Perry(at)netapp.com
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 Posted: Mon Oct 13, 2008 7:41 pm Post subject: Elevator Trim Tab Travel |
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Hi Everyone,
I just finished my elevators and I have a question about the trim tabs.
How much deflection should the trim tab have with a neutral elevator, nose up elevator, nose down elevator?
The reason I'm asking is that one of my hinges has a 'catch' in it. If I lift the trim tab up all the way, it travels freely. If I push it down from neutral, it catches "aka: binds" before releasing to operate freely. I'm thinking that the binding action may be well beyond the limits we'll set the plane up for at a later step.
1) What are these limits?
2) Has anyone seen this - if so what did you do?
3) Does the hinge eventually wear over time and loosen up? If so, that will probably eliminate all areas of concern.
Thanks,
Phil
[quote][b]
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bhughes(at)qnsi.net
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| Posted: Tue Oct 14, 2008 5:50 am Post subject: Elevator Trim Tab Travel |
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I had a similar problem with binding on one side. I had let the rivet line move a little when drilling and created a small angle across the span of the hinge half. I replaced the hinge half and corrected the problem. Verify that the binding is not working the elevator skins. My did.
Bobby Hughes
40116
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Perry, Phil
Sent: Monday, October 13, 2008 9:35 PM
To: rv10-list(at)matronics.com
Subject: Elevator Trim Tab Travel
Hi Everyone,
I just finished my elevators and I have a question about the trim tabs.
How much deflection should the trim tab have with a neutral elevator, nose up elevator, nose down elevator?
The reason I'm asking is that one of my hinges has a 'catch' in it. If I lift the trim tab up all the way, it travels freely. If I push it down from neutral, it catches "aka: binds" before releasing to operate freely. I'm thinking that the binding action may be well beyond the limits we'll set the plane up for at a later step.
1) What are these limits?
2) Has anyone seen this - if so what did you do?
3) Does the hinge eventually wear over time and loosen up? If so, that will probably eliminate all areas of concern.
Thanks,
Phil
[quote]
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[b]
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jesse(at)saintaviation.co
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| Posted: Tue Oct 14, 2008 6:18 am Post subject: Elevator Trim Tab Travel |
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I think the plans say this, but make sure you have the hinge pin in place when riveting the hinge. That will help with these issues.
do not archive
Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com (jesse(at)saintaviation.com)
Cell: 352-427-0285
Fax: 815-377-3694
On Oct 14, 2008, at 10:53 AM, Bobby J. Hughes wrote:
| Quote: | I had a similar problem with binding on one side. I had let the rivet line move a little when drilling and created a small angle across the span of the hinge half. I replaced the hinge half and corrected the problem. Verify that the binding is not working the elevator skins. My did.
Bobby Hughes
40116
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com)] On Behalf Of Perry, Phil
Sent: Monday, October 13, 2008 9:35 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Elevator Trim Tab Travel
Hi Everyone,
I just finished my elevators and I have a question about the trim tabs.
How much deflection should the trim tab have with a neutral elevator, nose up elevator, nose down elevator?
The reason I'm asking is that one of my hinges has a 'catch' in it. If I lift the trim tab up all the way, it travels freely. If I push it down from neutral, it catches "aka: binds" before releasing to operate freely. I'm thinking that the binding action may be well beyond the limits we'll set the plane up for at a later step.
1) What are these limits?
2) Has anyone seen this - if so what did you do?
3) Does the hinge eventually wear over time and loosen up? If so, that will probably eliminate all areas of concern.
Thanks,
Phil
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