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Matt Dralle
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Joined: 08 Nov 2005
Posts: 25781
Location: Livermore CA USA
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 Posted: Sun Jul 19, 2009 3:58 pm Post subject: Flap Skins Too Short? |
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Dear Listers,
Please see the attached photo taken from the underside of my RV-8. I was going to cut the bottom flap skin to match the diagonal of the fuselage skin per the "View E-E Flaps Fairing" on DGW 80. But, it appears that the aft portion of the flap skin was cut too short by the QB builders. Note that the front part seems to be exactly the right length and that diagonal cut will clip just perfectly. But on the aft skin of the flap, it is cut off about 2" too short to continue the diagonal line. Since the fuselage side skin is curving up right there, this will act like a giant air scoop. The flaps appear to be mounted in the correct position, left/right as they are the required 3/16" from the ailerons.
The left side is exactly the same as the right side as shown in the picture.
Thoughts?
Thanks!
Matt Dralle
RV-8 #82880 N998RV
FWF Is Right Around The Corner!!
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rv8a2001(at)yahoo.com
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| Posted: Sun Jul 19, 2009 4:39 pm Post subject: Flap Skins Too Short? |
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This picture opened fine.....
This looks normal to me IIRC, geez its been 5.5 yrs flying now, just trim to the fuse IIRC. I also recall that it is somewhat common for the flaps to fit differently to the fuse L or R side. Maybe this is not a problem with the quick builds but in the "old" days I recall this isssue.
Scott
RV-8a
--- On Sun, 7/19/09, Matt Dralle <dralle(at)matronics.com> wrote:
From: Matt Dralle <dralle(at)matronics.com>
Subject: Flap Skins Too Short?
To: rv-list(at)matronics.com, rv8-list(at)matronics.com
Date: Sunday, July 19, 2009, 4:57 PM
Dear Listers,
Please see the attached photo taken from the underside of my RV-8. I was going to cut the bottom flap skin to match the diagonal of the fuselage skin per the "View E-E Flaps Fairing" on DGW 80. But, it appears that the aft portion of the flap skin was cut too short by the QB builders. Note that the front part seems to be exactly the right length and that diagonal cut will clip just perfectly. But on the aft skin of the flap, it is cut off about 2" too short to continue the diagonal line. Since the fuselage side skin is curving up right there, this will act like a giant air scoop. The flaps appear to be mounted in the correct position, left/right as they are the required 3/16" from the ailerons.
The left side is exactly the same as the right side as shown in the picture
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
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Matt Dralle
Site Admin
Joined: 08 Nov 2005
Posts: 25781
Location: Livermore CA USA
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| Posted: Mon Jul 20, 2009 4:07 pm Post subject: Re: Flap Skins Too Short? |
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Here's what I heard back from Van's today regarding the issue including the updated picture:
| Quote: | | Simply rivet on a .040" extension (like the -4 & -6 builders had to) as shown in the attached picture. You can bend it to fit any contour or overlap the flap intersection fairing as you see fit. Use pop or solid flush rivets to attach. |
Um, good thing its underneath... 
Matt
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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