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  #1  
Old 01-12-2008, 11:09 AM
dustman dustman is offline
 
Join Date: Jan 2007
Location: St Mary's, Georgia
Posts: 135
Default elevator travel

Question i dont have enough travel itn the down direction. If i trim the bottom edge of the horizontal stabilizer near the elevator horn attachment on the HS i can get the clearance i need. The portion that i will remove from the hs will be about 1 inch total and only on the edge of the HS. It will be on the bend of the hs i dont think that it will take any strength from the HS. Any ideas.
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  #2  
Old 01-12-2008, 11:45 AM
EricB EricB is offline
 
Join Date: Sep 2005
Posts: 30
Default Required per plans

Hi Dustman,

Can't tell what you are building so I'll take a guess that it is a 7.

The area you describe is required to trimmed on the 7 (think it applies to the 6 and 8 as well). The empenage instrutions, horizontal stab section, highlight the ammount of trimming required.

Good luck

EricB
RV-7
Finishing Fuse
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  #3  
Old 01-12-2008, 04:10 PM
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Kevin Horton Kevin Horton is offline
 
Join Date: Jan 2005
Location: Ottawa, Canada
Posts: 2,357
Default

I'm guessing that you are referring to an interference problem with the forward edge of the elevator horns hitting the flange of the HS rear spar. This is completely normal, and the flange must be trimmed to allow the required elevator travel.
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RV-8
Moses Lake, WA, USA
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  #4  
Old 01-12-2008, 04:42 PM
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rph142 rph142 is offline
 
Join Date: Feb 2007
Location: Walnut Creek CA
Posts: 513
Default

You're building a 3 right? I had the same problem and I cut the flange just like you said on the HS to get enough travel.
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Rob Holmes
www.myrv3.com
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The minimum number of planes one should own is one. The correct number is n+1, where n is the number of planes currently owned. This equation may also be re-written as s-1, where s is the number of planes owned that would result in separation from your partner.

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  #5  
Old 01-12-2008, 05:29 PM
Norman CYYJ Norman CYYJ is offline
 
Join Date: Feb 2005
Location: Victoria B.C.
Posts: 1,265
Default

Standard procedure is to trim the HS rear spar where the elevator horn hits it. It is not uncommon to trim the flange off right to the web. The instructions also tell you to do this.
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  #6  
Old 01-13-2008, 05:26 PM
dustman dustman is offline
 
Join Date: Jan 2007
Location: St Mary's, Georgia
Posts: 135
Default Elevator travel

Thanks guys I trimmed the HS and I now have about 27 deg up and 27 deg down. My only other question is 27 deg enough the manual calls for 30. There is no way I can get 30 unless i do some serious modifying and i figure I could be off a few degrees due to my measuring method. Again thanks for the help. Yes it is a R3.
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  #7  
Old 01-13-2008, 08:12 PM
Norman CYYJ Norman CYYJ is offline
 
Join Date: Feb 2005
Location: Victoria B.C.
Posts: 1,265
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27 degrees is plenty
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