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Has anyone had corrosion problems on flap cross tube?

 
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rparigoris



Joined: 24 Nov 2009
Posts: 780

PostPosted: Wed Jul 03, 2019 5:09 am    Post subject: Has anyone had corrosion problems on flap cross tube? Reply with quote

Hi Group

Curious, has anyone had a corrosion problem on the flap cross tube in the U bend that goes under the pitch push rod?

Thx. Ron P.


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wdaniell.longport(at)gmai
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PostPosted: Wed Jul 03, 2019 5:31 am    Post subject: Has anyone had corrosion problems on flap cross tube? Reply with quote

When I was building I wondered about that - in fact like you I still do.  I filled the tube up with anti corrosive paint to ensure complete coating (pouring out the excess).  Every time I have the wings off I squirt with LPS.  But even so there is the U bend where water can accumulate.
William Daniell

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On Wed, Jul 3, 2019 at 9:12 AM rparigoris <rparigor(at)hotmail.com (rparigor(at)hotmail.com)> wrote:

Quote:
--> Europa-List message posted by: "rparigoris" <rparigor(at)hotmail.com (rparigor(at)hotmail.com)>

Hi Group

Curious, has anyone had a corrosion problem on the flap cross tube in the U bend that goes under the pitch push rod? 

Thx. Ron P.




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peterz(at)zutrasoft.com
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PostPosted: Wed Jul 03, 2019 5:59 am    Post subject: Has anyone had corrosion problems on flap cross tube? Reply with quote

Good point!
Drill a small hole in the bottom? Thoughts?
Thx,
Pete

On Jul 3, 2019, at 9:31 AM, William Daniell <wdaniell.longport(at)gmail.com (wdaniell.longport(at)gmail.com)> wrote:
Quote:
When I was building I wondered about that - in fact like you I still do. I filled the tube up with anti corrosive paint to ensure complete coating (pouring out the excess). Every time I have the wings off I squirt with LPS. But even so there is the U bend where water can accumulate.
William Daniell

LONGPORT

On Wed, Jul 3, 2019 at 9:12 AM rparigoris <rparigor(at)hotmail.com (rparigor(at)hotmail.com)> wrote:

Quote:
--> Europa-List message posted by: "rparigoris" <rparigor(at)hotmail.com (rparigor(at)hotmail.com)>

Hi Group

Curious, has anyone had a corrosion problem on the flap cross tube in the U bend that goes under the pitch push rod?

Thx. Ron P.




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=489981#489981






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wdaniell.longport(at)gmai
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PostPosted: Wed Jul 03, 2019 6:28 am    Post subject: Has anyone had corrosion problems on flap cross tube? Reply with quote

I would think that is a good idea - I will probably try to work out how to do that myself.
In any case i think it is highly unlikely for water to get in while the plane is complete.  however if youre trailering it might be a different story
Thank said I have not heard of any cases and the UK is not exactly arid...
William Daniell

LONGPORT

On Wed, Jul 3, 2019 at 10:01 AM Pete <peterz(at)zutrasoft.com (peterz(at)zutrasoft.com)> wrote:

Quote:

Good point!
Drill a small hole in the bottom? Thoughts?
Thx,
Pete

On Jul 3, 2019, at 9:31 AM, William Daniell <wdaniell.longport(at)gmail.com (wdaniell.longport(at)gmail.com)> wrote:
Quote:
When I was building I wondered about that - in fact like you I still do.  I filled the tube up with anti corrosive paint to ensure complete coating (pouring out the excess).  Every time I have the wings off I squirt with LPS.  But even so there is the U bend where water can accumulate.
William Daniell

LONGPORT

On Wed, Jul 3, 2019 at 9:12 AM rparigoris <rparigor(at)hotmail.com (rparigor(at)hotmail.com)> wrote:

Quote:
--> Europa-List message posted by: "rparigoris" <rparigor(at)hotmail.com (rparigor(at)hotmail.com)>

Hi Group

Curious, has anyone had a corrosion problem on the flap cross tube in the U bend that goes under the pitch push rod? 

Thx. Ron P.




Read this topic online here:

http://forums.matronics.com/viewtopic.php?p=489981#489981






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rparigoris



Joined: 24 Nov 2009
Posts: 780

PostPosted: Thu Jul 04, 2019 1:44 am    Post subject: Re: Has anyone had corrosion problems on flap cross tube? Reply with quote

Hi Group

Thx. for replies. My flap cross tube is installed but baggage bay not yet in. I drilled a .100" hole in situation. The way I did it was I used an air powered angle drill. I first put a piece of 3M 375 packaging tape on the bottom of the tube then scuff sanded it with 80 grit. I took a piece of aluminium rod and drilled a .100" hole in it, it was about 1/2" long, then JB KWIK Welded it to the tape. 80 grit scuff helps adhesion. I had the flap tube in the down position using my EyeChrometer to get drill jig vertical and in the middle of bend. After cure put cross tube in up position and drilled hole. ACF 50 with extension tube once in a while while blowing and sucking is a good idea also too.
Ron P.


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