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10-02-2016, 12:02 PM
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Join Date: Nov 2012
Location: Midland, mi
Posts: 962
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Dimpling firewall flange question
This is probably a dumb question, butt....
After match drilling the hinge and the shim on 29-08, I assume that the firewall flange needs to be dimpled?
Where in the plans does it call that out? I have looked but can't find it
__________________
Ken Stockman
Midland, MI
EAA Chapter 1093 member
FaceBook Page: Ken's RV-14
RV-14a (serial number 140073)
N73XP
Plane at hangar and the wings ON.
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10-02-2016, 01:27 PM
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Join Date: Aug 2015
Location: Leesburg, VA
Posts: 492
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Quote:
Originally Posted by Stockmanreef
This is probably a dumb question, butt....
After match drilling the hinge and the shim on 29-08, I assume that the firewall flange needs to be dimpled?
Where in the plans does it call that out? I have looked but can't find it
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It doesn't - I asked Vans this exact question several weeks ago because it states earlier specifically NOT to dimple the side flanges. However, I was told that after you do the match drilling it's time to dimple the side flanges so you can rivet the flanges and shims and hinges together. Hopefully they will revise this section.
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10-02-2016, 02:27 PM
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Join Date: Nov 2012
Location: Midland, mi
Posts: 962
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very weird that this would be missed with the last revision this year. I am sure that they must have had this call numerous times. Time to uncle the side skin and dimple.
Which is what I thought I would have to do.
At least I have not clecoed on both sides.
Thanks
ken
__________________
Ken Stockman
Midland, MI
EAA Chapter 1093 member
FaceBook Page: Ken's RV-14
RV-14a (serial number 140073)
N73XP
Plane at hangar and the wings ON.
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04-01-2017, 06:54 PM
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Join Date: May 2005
Location: Rescue, CA. KROB
Posts: 352
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Just ran into this issue myself. Time for a new revision Vans.
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Rob Lasater
Rv-14 flying baby, yeah.
Paid Dec 2019
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04-01-2017, 09:43 PM
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Join Date: Dec 2013
Location: Baton Rouge, LA
Posts: 1,055
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I hit that spot, scratched my head, and figured it just had to be done.... The plans are so exacting I worried that I was going to regret it, but so far so good. There are a couple rivets for the baggage area in the same vein can't remember exactly but I asked here a while back.
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Ser 104142, RV-14A flying - N1463 
Ser 83825, RV-8 building - N8638? 
USN Ret, Urologist, AME, Repeat Offender
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12-04-2017, 12:50 PM
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Join Date: Apr 2014
Location: Ft worth, Texas
Posts: 17
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firewall flange dimple
Thanks guys for posting this. Arrived at this section of plan and did the head scratch too. (First I thought I screwed up though)!
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12-04-2017, 02:32 PM
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Join Date: Apr 2015
Location: Ponte Vedra, FL
Posts: 1,474
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Don't recall where/if in plans the firewall flanges get dimpled, but it's important not to do it until after match drilling the cowling hinges and shims.... (And after that I don't think it really matters when you dimple them, just don't do it BEFORE the match drilling)
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