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  #1  
Old 02-28-2021, 11:29 AM
Sportquattro Sportquattro is online now
 
Join Date: Nov 2020
Location: Ivybridge UK
Posts: 14
Default Rudder clearance with VS

My rudder touches the trailing edge of the skins on the vertical stabiliser it it a common issue? Thinking best fix is to slightly bend the trailing edge of the vertical stabiliser skins slight outward to give clearance. Estimate about 1.5 mm reqd. Thoughts welcome. I have tried adjusting the attachment eyes but to no avail
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  #2  
Old 02-28-2021, 11:48 AM
edclee edclee is offline
 
Join Date: Aug 2008
Location: Lancaster, SC
Posts: 151
Default Rudder Interference

Trust me, you want to install hard stops for the rudder down at the bottom of the rudder because if not, the rudder WILL hit the elevator tips if moved in the wind, or accidently while tying down, etc before you can get some kind of rudder lock in place. I could send you pictures of my before (dents in the rudder) and after I installed the hard rudder stops.
Ed
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  #3  
Old 02-28-2021, 11:54 AM
jdiehl jdiehl is offline
 
Join Date: Jan 2011
Location: Williamsport, Pa
Posts: 179
Default Rudder stops

Unless you plan on building a new rudder, as said above, install rudder stops NOW! I have about 3/4”gap between rudder and elevator edge when against the stop (s).
Hope that helps

Jim Diehl 7A
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  #4  
Old 02-28-2021, 12:09 PM
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Mel Mel is online now
 
Join Date: Mar 2005
Location: Dallas area
Posts: 10,969
Default

He is talking about clearance between the rudder and vertical stabilizer, not the elevator.

The trailing edge skins on the vertical stab will probably need to be trimmed. But before you do, make sure you have the hinge rod-end bearings adjusted properly. And respect the amount of rudder travel required.

Do not bend the trailing edge of the skins outward.
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USAF Vet, High School E-LSA Project Mentor.
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<rvmel(at)icloud.com>
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  #5  
Old 02-28-2021, 01:15 PM
Sportquattro Sportquattro is online now
 
Join Date: Nov 2020
Location: Ivybridge UK
Posts: 14
Default

Quote:
Originally Posted by Mel View Post
He is talking about clearance between the rudder and vertical stabilizer, not the elevator.

The trailing edge skins on the vertical stab will probably need to be trimmed. But before you do, make sure you have the hinge rod-end bearings adjusted properly. And respect the amount of rudder travel required.

Do not bend the trailing edge of the skins outward.
Thanks Mike. What’s best method to use to trim the trailing edge skins?
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  #6  
Old 02-28-2021, 01:22 PM
Taltruda Taltruda is online now
 
Join Date: Oct 2017
Location: Las Vegas, NV
Posts: 634
Default

Quote:
Originally Posted by Sportquattro View Post
Thanks Mike. What’s best method to use to trim the trailing edge skins?
Tin snips and a file?
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  #7  
Old 02-28-2021, 04:40 PM
BillL BillL is offline
 
Join Date: Sep 2007
Location: Central IL
Posts: 5,818
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Quote:
Originally Posted by Taltruda View Post
Tin snips and a file?
File - or just get new skins.
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RV-7
Lord Kelvin:
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and express it in numbers, you know something about it; but when you
cannot measure it, when you cannot express it in numbers, your knowledge
is of a meager and unsatisfactory kind.”
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  #8  
Old 02-28-2021, 05:34 PM
rjcthree's Avatar
rjcthree rjcthree is offline
 
Join Date: Jan 2007
Location: Bay Village, OH
Posts: 951
Default An extra turn or two out on the hinge?

Why not just put an extra turn or two on the hinge rod ends, as long as they stays in limits? Check with the mothership of course...
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RV-9A N183RC/90432: tip-up, O320H2, Ellison, Dynon D180, CPi2, Sen GA, at KLPR
RV-8 83718, wing kit, tanks done, with a four year plus plan - on hold due to home move
2011-2021 VAF contributor

Last edited by rjcthree : 03-01-2021 at 11:21 AM.
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  #9  
Old 02-28-2021, 05:45 PM
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PaulvS PaulvS is offline
 
Join Date: Aug 2019
Location: Western Australia
Posts: 558
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Quote:
Originally Posted by Sportquattro View Post
Thanks Mike. What’s best method to use to trim the trailing edge skins?
A vixen file works well for something like this because it is quicker than a smoothing file, it keeps the edge straight, and the edge doesn't get kinked up as can occur with tin snips.
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Building RV-6A #22320 O-320 FP. Wings and tail complete, working on fuselage
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Last edited by PaulvS : 02-28-2021 at 05:46 PM. Reason: spelling
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  #10  
Old 03-01-2021, 08:10 AM
Steve Steve is online now
 
Join Date: Jan 2005
Location: Roy, Utah
Posts: 1,183
Default

Install the rudder stops then adjust then adjust the rod ends.
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