Today's Message Index:
----------------------
1. 10:43 AM - This cracks me up! (Andy Karmy)
2. 02:15 PM - Re: This cracks me up! (Gary Crowder)
3. 03:29 PM - Re: This cracks me up! (Andy Karmy)
4. 07:53 PM - Re: This cracks me up! (Gary Crowder)
5. 09:14 PM - Re: This cracks me up! (Ken Moak)
6. 11:47 PM - Hole in wing rib for wire conduit (Warren W Hurd)
Message 1
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| Subject: | This cracks me up! |
--> RV9-List message posted by: "Andy Karmy" <andy@karmy.com>
FYI... for those that are just building your tail surfaces, learn from my troubles
how to do it right!
http://www.karmy.com/rv9a/pictures/cracks/cracks.htm
- Andy Karmy (85hrs TT)
Message 2
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| Subject: | Re: This cracks me up! |
--> RV9-List message posted by: "Gary Crowder" <rv9er@3rivers.net>
Andy......thanks for sharing your experiences with the skin cracking. What deburring
techniques did you use on those parts? Just curious. I remember a while
back on the RV list that some of the builders advocated skipping the deburring
of rivet holes altogether.
Gary
----- Original Message -----
From: Andy Karmy
To: rv9-list@matronics.com
Sent: Monday, June 09, 2003 11:52 AM
Subject: RV9-List: This cracks me up!
--> RV9-List message posted by: "Andy Karmy" <andy@karmy.com>
FYI... for those that are just building your tail surfaces, learn from my troubles
how to do it right!
http://www.karmy.com/rv9a/pictures/cracks/cracks.htm
- Andy Karmy (85hrs TT)
Message 3
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| Subject: | Re: This cracks me up! |
--> RV9-List message posted by: "Andy Karmy" <andy@karmy.com>
I used the Avery hex shank debur tool that fit in a B&D cordless screwdriver. Now
that I am building another rudder I suspect that I did a number of things wrong
on the first one.
1) over debured the holes (.016 is way way thin)
2) over dimpled the holes dosen't take much of a hit to dimple .016
3) over drove the rivets...
results I guess should have been predictable based upon 1-3 ...
I can say that the new one looks very nice. I just finished back riveting the proseal
encrusted stiffeners. I shot them wet just like building the tanks. 1 turn
to lightly debur, light dimple on the c-frame, Light rivet gun pressure, nice
perfectly flat results.
All of this education makes me wonder about the guys that simply hammer the dimple
in to the prepunched hole and move on... It's a helpless feeling when the
cracks start comming out of the center of a rivet hole. In most cases there is
no "easy" fix once it starts.
- Andy
---------- Original Message ----------------------------------
From: "Gary Crowder" <rv9er@3rivers.net>
>--> RV9-List message posted by: "Gary Crowder" <rv9er@3rivers.net>
>
>Andy......thanks for sharing your experiences with the skin cracking. What deburring
techniques did you use on those parts? Just curious. I remember a while
back on the RV list that some of the builders advocated skipping the deburring
of rivet holes altogether.
>
>Gary
>
>
> ----- Original Message -----
> From: Andy Karmy
> To: rv9-list@matronics.com
> Sent: Monday, June 09, 2003 11:52 AM
> Subject: RV9-List: This cracks me up!
>
>
> --> RV9-List message posted by: "Andy Karmy" <andy@karmy.com>
>
> FYI... for those that are just building your tail surfaces, learn from my troubles
how to do it right!
>
> http://www.karmy.com/rv9a/pictures/cracks/cracks.htm
>
> - Andy Karmy (85hrs TT)
>
>
Message 4
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| Subject: | Re: This cracks me up! |
--> RV9-List message posted by: "Gary Crowder" <rv9er@3rivers.net>
Andy,
Yes, those were my thoughts exactly. When those guys were talking about skipping
the match drilling and deburring, I wonder how many newcomers took their "advice."
do not archive
Gary
.....snip........
I can say that the new one looks very nice. I just finished back riveting the
proseal encrusted stiffeners. I shot them wet just like building the tanks. 1
turn to lightly debur, light dimple on the c-frame, Light rivet gun pressure,
nice perfectly flat results.
All of this education makes me wonder about the guys that simply hammer the dimple
in to the prepunched hole and move on... It's a helpless feeling when the
cracks start comming out of the center of a rivet hole. In most cases there
is no "easy" fix once it starts.
Message 5
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| Subject: | Re: This cracks me up! |
--> RV9-List message posted by: Ken Moak <ken_moak@yahoo.com>
Andy
Thanks for sharing. I'm worried about my early work,
but because you posted this I will be watching it very
carefully, and make sure I'm more carefull on the
rest.
Thanks
Ken
90608
Wings
--- Andy Karmy <andy@karmy.com> wrote:
> --> RV9-List message posted by: "Andy Karmy"
> <andy@karmy.com>
>
> FYI... for those that are just building your tail
> surfaces, learn from my troubles how to do it right!
>
> http://www.karmy.com/rv9a/pictures/cracks/cracks.htm
>
> - Andy Karmy (85hrs TT)
>
>
>
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Message 6
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| Subject: | Hole in wing rib for wire conduit |
--> RV9-List message posted by: Warren W Hurd <warren@ahyup.com>
Hi fellow RV builders.
I made a little jig so that I could make some holes in the ribs for
the wire conduit. I selected a section of the rib that had plenty of
metal and would be out of the way. After drilling my 6th hole I had
thought of, What am I doing! drilling holes in the structure of the
plane. I have not done a stress analysis of the rib(s).
So what do you think? The hole is 7/8ths of an inch between the 1st
and 2nd lighting hole. I posted a couple of photos at
http://www.ahyup.com/hole So do I worry to much? Or have I made a way to
run wires and keep them out of the way.
Warren
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