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Proseal on trailing edges?

 
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Eric_Kallio



Joined: 29 Jan 2006
Posts: 149
Location: Baton Rouge, LA

PostPosted: Sun Jan 29, 2006 7:21 am    Post subject: Proseal on trailing edges? Reply with quote

I am on my way to Alexander to start my tail in a couple weeks. My question is whether or not I need to proseal the trailing edges, and if so, is it even feasible at Alexander? I live in Baton Rouge, LA so humidity and moisture (read corrosion) are of concern. I would like to poll the audience and open the floodgates. I would love to hear what most of you have done, especially any one else living in a coastal area or that went to Alexander. Also if anyome has the first couple pages scanned or emailable in someway that I can review before going it would be much appreciated. Thanks.

Eric Kallio
40518


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rv10builder(at)bellsouth.
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PostPosted: Sun Jan 29, 2006 7:42 am    Post subject: Proseal on trailing edges? Reply with quote

Eric,

I built my empennage at Alexander; and did not use proseal. Jacob will
prime all of the parts for you and show you how to rivet the trailing
edge so that it will come out straight as an arrow.

Brian

http://home.bellsouth.net/p/PWP-N104BS


Eric_Kallio wrote:

Quote:


I am on my way to Alexander to start my tail in a couple weeks. My question is whether or not I need to proseal the trailing edges, and if so, is it even feasible at Alexander? I live in Baton Rouge, LA so humidity and moisture (read corrosion) are of concern. I would like to poll the audience and open the floodgates. I would love to hear what most of you have done, especially any one else living in a coastal area or that went to Alexander. Also if anyome has the first couple pages scanned or emailable in someway that I can review before going it would be much appreciated. Thanks.

Eric Kallio
40518


Read this topic online here:

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VHMUM(at)bigpond.com
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PostPosted: Sun Jan 29, 2006 12:11 pm    Post subject: Proseal on trailing edges? Reply with quote

NO There is absolutely no need to unless you want to add weight.

Chris
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sfdarton(at)yahoo.com
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PostPosted: Sun Jan 29, 2006 2:32 pm    Post subject: Proseal on trailing edges? Reply with quote

The Proseal is only used to hold the assembly together
while you rivet it. If you have some kind of angle
iron bucking bar you can cleco to it is easily done
without Proseal. Check out Mike Howe's site.
http://www.etigerrr.com/RV10Rudder/rudder_november_19.htm
Mike Howe or Tim Olsen have the plans pages available
thier web-sites in PDF format.

Steve 40212

--- Eric_Kallio <scout019(at)msn.com> wrote:

Quote:

<scout019(at)msn.com>

I am on my way to Alexander to start my tail in a
couple weeks. My question is whether or not I need
to proseal the trailing edges, and if so, is it even
feasible at Alexander? I live in Baton Rouge, LA so
humidity and moisture (read corrosion) are of
concern. I would like to poll the audience and open
the floodgates. I would love to hear what most of
you have done, especially any one else living in a
coastal area or that went to Alexander. Also if
anyome has the first couple pages scanned or
emailable in someway that I can review before going
it would be much appreciated. Thanks.

Eric Kallio
40518




Read this topic online here:


http://forums.matronics.com/viewtopic.php?p=7804#7804

Quote:










browse
Subscriptions page,
FAQ,

Admin.













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bsponcil(at)belinblank.or
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PostPosted: Sun Jan 29, 2006 2:55 pm    Post subject: Proseal on trailing edges? Reply with quote

Eric,

I didn't use proseal on my rudder and it came out really nice (IMHO of
course). I live in Iowa, but if I don't think I'd go for the proseal even if
I lived on the coast. If corrosion is a big concern just do a nice job of
primering.

On a related note, a friend of mine building a 9A gave me the idea of
fabricating a squeezer set at just the right angle so you can squeeze the
trailing edge rivets instead of the more complex "back rivet half set and
then change the angle of the gun" technique as per plans. All you have to do
is grind down a flat set to match the trailing edge angle and figure out a
way to keep it square in the squeezer (I just used tape). I put the angled
set on top and a regular flat set on bottom and just went down the line.

I'm sure there are other solutions out there but I think the results of me
back riveting wouldn't have been as nice as using the modified squeezer set.
-Brian

N211BD
#10497
www.n211bd.org
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johnwcox(at)pacificnw.com
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PostPosted: Sun Jan 29, 2006 4:09 pm    Post subject: Proseal on trailing edges? Reply with quote

Before dismissing the use of Proseal on trailing edge riveting, you
should have a comfort with the term "faying action" which is the
equivalent to the wicking of liquids between two solid objects. You did
say Louisiana. There is a reason that primers and topcoats use the
exposure to moisture and salt spray as the baseline test for protection.

Primer doesn't stop it with either skin overlaps or trailing edge
construction. If you really want to get granular you can also research
"hydrogen Embrittlement" while your learning.

Proseal is also excellent on the terminal ends and fasteners used to
complete the many bonding straps between movable control surfaces to the
main airframe. The bonding straps are used to release P static buildup
from dust or moisture in the air.

Alexander's should be a good source for answers to such questions.
Without resurrecting the discussion here you can ask them about
conversion treatments and primer applications as well.

John - $00.02
Do not Archive

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owl40188(at)yahoo.com
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PostPosted: Mon Jan 30, 2006 8:31 am    Post subject: Proseal on trailing edges? Reply with quote

There is another benefit to the proseal in the trailing edges in that one is less likely to develop cracks in the trailing edge rivet holes.  I have heard that cracks in the trailing edges of RVs are not that uncommon.  The proseal essentially bonds the trailing edges together resulting in a more rubust structure.
 
Niko
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jjessen(at)rcn.com
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PostPosted: Mon Jan 30, 2006 9:22 am    Post subject: Proseal on trailing edges? Reply with quote

What's the big deal to prosealing the edges?  Or, rather, what's the big deal to NOT prosealing.  Why would you not proseal?  Other than the little mess?  Time involved? 
 
John Jessen
  ~328
 
do not archive

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Nikolaos Napoli
Sent: Monday, January 30, 2006 8:29 AM
To: rv10-list(at)matronics.com
Subject: Re: Proseal on trailing edges?

There is another benefit to the proseal in the trailing edges in that one is less likely to develop cracks in the trailing edge rivet holes.  I have heard that cracks in the trailing edges of RVs are not that uncommon.  The proseal essentially bonds the trailing edges together resulting in a more rubust structure.
 
Niko
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johnwcox(at)pacificnw.com
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PostPosted: Mon Jan 30, 2006 6:20 pm    Post subject: Proseal on trailing edges? Reply with quote

Cutting corners, saving time, saving money.  Its all about short cuts for some and additional overbuilding for others.  Each to their preference.
 
Although its more work, the quality of the final product far outlasts and outperforms the “Just build it” attitude.  I think that the chance to build an aircraft “Superior” to a Certified is a thing of beauty in the Amateur built arena.  Just look at the newest panels of Scott Schmidt and Tim Olson along with their great paint schemes.   You might Google Dr. Carl Cadwell’s newest flying 6 passenger Epic Air with the Beech Starship P&W turboprop.  “ Beam me up Scottie”. 
 
Now “Making and living the Dream” – that’s a great Mantra.  Welcome aboard for the ride – Eric.
 
John - KUAO
 

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of John Jessen
Sent: Monday, January 30, 2006 9:21 AM
To: rv10-list(at)matronics.com
Subject: RE: Proseal on trailing edges?

 
What's the big deal to prosealing the edges?  Or, rather, what's the big deal to NOT prosealing.  Why would you not proseal?  Other than the little mess?  Time involved? 
 
John Jessen
  ~328
 
do not archive
 

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Nikolaos Napoli
Sent: Monday, January 30, 2006 8:29 AM
To: rv10-list(at)matronics.com
Subject: Re: Proseal on trailing edges?
There is another benefit to the proseal in the trailing edges in that one is less likely to develop cracks in the trailing edge rivet holes.  I have heard that cracks in the trailing edges of RVs are not that uncommon.  The proseal essentially bonds the trailing edges together resulting in a more rubust structure.

 

Niko
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ricksked(at)earthlink.net
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PostPosted: Mon Jan 30, 2006 8:15 pm    Post subject: Proseal on trailing edges? Reply with quote

One thing that can be said for the proseal on the trailing edges, it fills the area between the skins and any small gaps (minute but they do exist) that may form after riveting. It can be sanded and painted and will help to provide a better finished product, it doesn't weigh that much and I am happy I used it....and It means I also followed the plans. That does mean something to me, for my own piece of mind.
 
Rick S.
40185
Fuselage


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PostPosted: Mon Jan 30, 2006 10:35 pm    Post subject: Proseal on trailing edges? Reply with quote

Rick from Vans there is no need to put it in!
 
Chris
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PostPosted: Mon Jan 30, 2006 10:35 pm    Post subject: Proseal on trailing edges? Reply with quote

Weight !
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Deems Davis



Joined: 09 Jan 2006
Posts: 925

PostPosted: Tue Jan 31, 2006 5:30 am    Post subject: Proseal on trailing edges? Reply with quote

After Pro Sealing the Rudder, I elected to NOT Pro seal the remaining
trailing edges, not because of time or money or weight savings, but
because it is difficult to get an even application of Proseal across the
surfaces, and I was concerned the it could contribute to 'puckering' of
the skin between the rivets and lead to 'waves' in the final product.
When I heard that Van's did not feel it was structural. I eliminated it,
and use the Angle iron /alternating rivet heads approach.

Deems Davis # 406
Wings
http://deemsrv10.com/
Chris , Susie Darcy wrote:

[quote] Weight !

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