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rowlandcarson(at)gmail.co
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 Posted: Mon Dec 22, 2014 1:53 pm Post subject: W26 aft wing socket query |
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I was so pleased that on Friday I’d managed to complete the bonding of the wing pin sockets onto the fuselage sides - I had used high-power resistors clamped to each socket and fed from bench power supplies to bring the temperature of the metal parts up to 50C so that the Redux cured in 4 hours instead of 5 days, thus avoiding the need to find a warm and safe place to leave the entire aeroplane assembled for a week.
However, when I came to drill the bolt holes through the fuselage hard-points today, I find that despite marking orientations and making several checks, I have managed to bond on the port W26 assembly upside-down - that is, with the small (3/16”) bolt hole at the top instead of the bottom.
Racking my brains about how to recover from this stupid mistake, I came up with 3 options.
(1) Leave it as it is and use the hole at the top. I pretty soon realised this is no good, as the head of the bolt would foul the head of the pip-pin.
(2) De-bond the socket with large amounts of heat and do the whole alignment process again, including re-making the shim. This does not appeal for lots of reasons!
(3) Drill a new 3/16” hole at the bottom of the W26 flange, taking care to position it correctly.
At the moment I can’t see any down-side to option 3; can anyone offer any comments one way or the other?
in friendship
Rowland
| Rowland Carson ... that's Rowland with a 'w' ...
| <rowlandcarson(at)gmail.com> http://www.rowlandcarson.org.uk
| Skype, Twitter: rowland_carson Facebook: Rowland Carson
| pictures: http://picasaweb.google.com/rowlandcarson
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davidjoyce(at)doctors.org
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| Posted: Tue Dec 23, 2014 2:33 am Post subject: W26 aft wing socket query |
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Roland I would be inclined to take a narrow hacksaw blade and simply saw through immediately under the W26. You can then reorientate it and bond it on again. Does your inspector not have strong views on this? Regards, David
On 2014-12-22 21:53, Rowland Carson wrote: [quote] | Quote: | --> Europa-List message posted by: Rowland Carson <rowlandcarson(at)gmail.com (rowlandcarson(at)gmail.com)>
I was so pleased that on Friday I'd managed to complete the bonding of the wing pin sockets onto the fuselage sides - I had used high-power resistors clamped to each socket and fed from bench power supplies to bring the temperature of the metal parts up to 50C so that the Redux cured in 4 hours instead of 5 days, thus avoiding the need to find a warm and safe place to leave the entire aeroplane assembled for a week.
However, when I came to drill the bolt holes through the fuselage hard-points today, I find that despite marking orientations and making several checks, I have managed to bond on the port W26 assembly upside-down - that is, with the small (3/16") bolt hole at the top instead of the bottom.
Racking my brains about how to recover from this stupid mistake, I came up with 3 options.
(1) Leave it as it is and use the hole at the top. I pretty soon realised this is no good, as the head of the bolt would foul the head of the pip-pin.
(2) De-bond the socket with large amounts of heat and do the whole alignment process again, including re-making the shim. This does not appeal for lots of reasons!
(3) Drill a new 3/16" hole at the bottom of the W26 flange, taking care to position it correctly.
At the moment I can't see any down-side to option 3; can anyone offer any comments one way or the other?
in friendship
Rowland
| Rowland Carson ... that's Rowland with a 'w' ...
| <rowlandcarson(at)gmail.com (rowlandcarson(at)gmail.com)> http://www.rowlandcarson.org.uk
| Skype, Twitter: rowland_carson Facebook: Rowland Carson
| pictures: http://picasaweb.google.com/rowlandcarson
ectric.com
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budyerly(at)msn.com
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| Posted: Wed Dec 24, 2014 9:13 am Post subject: W26 aft wing socket query |
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OOPses happen.
If you are a purist, heat the socket with a small torch and simply pry it
off. Make you work faster by simply grinding any Redux off the edges. Use
a 12 mm rod to pry it off if you like.
Scuff and reinstall with your wings again, just to assure alignment.
Drilling a hole in the bottom is all right also. The pivot is manufactured
to be symmetrical. I never liked the 3/16 Allen head in the top as in
bending, I prefer to see the anti rocking of the socket put a pull on the
underlying buildup of glass/wood/aluminum structure rather than compression.
Also the pip pin is a tad easier on the install as it is the black hole
getting the pin in in bright sunlight or dim hangars.
Best regards,
Happy Holiday
Bud Yerly
--------------------------------------------------
From: "Rowland Carson" <rowlandcarson(at)gmail.com>
Sent: Monday, December 22, 2014 4:53 PM
To: "Europa e-mail list list" <europa-list(at)matronics.com>
Subject: W26 aft wing socket query
| Quote: |
<rowlandcarson(at)gmail.com>
I was so pleased that on Friday I’d managed to complete the bonding of the
wing pin sockets onto the fuselage sides - I had used high-power resistors
clamped to each socket and fed from bench power supplies to bring the
temperature of the metal parts up to 50C so that the Redux cured in 4
hours instead of 5 days, thus avoiding the need to find a warm and safe
place to leave the entire aeroplane assembled for a week.
However, when I came to drill the bolt holes through the fuselage
hard-points today, I find that despite marking orientations and making
several checks, I have managed to bond on the port W26 assembly
upside-down - that is, with the small (3/16”) bolt hole at the top instead
of the bottom.
Racking my brains about how to recover from this stupid mistake, I came up
with 3 options.
(1) Leave it as it is and use the hole at the top. I pretty soon realised
this is no good, as the head of the bolt would foul the head of the
pip-pin.
(2) De-bond the socket with large amounts of heat and do the whole
alignment process again, including re-making the shim. This does not
appeal for lots of reasons!
(3) Drill a new 3/16” hole at the bottom of the W26 flange, taking care to
position it correctly.
At the moment I can’t see any down-side to option 3; can anyone offer any
comments one way or the other?
in friendship
Rowland
| Rowland Carson ... that's Rowland with a 'w' ...
| <rowlandcarson(at)gmail.com> http://www.rowlandcarson.org.uk
| Skype, Twitter: rowland_carson Facebook: Rowland Carson
| pictures: http://picasaweb.google.com/rowlandcarson
|
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rowlandcarson(at)gmail.co
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| Posted: Tue Dec 30, 2014 10:18 am Post subject: W26 aft wing socket query |
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On 24 Dec 2014, at 17:12, Bud Yerly <budyerly(at)msn.com> wrote:
| Quote: | Drilling a hole in the bottom is all right also
|
Bud - thanks for that reassurance. I was worried when others mentioned that the W26 parts might be hardened, but I found that I could drill it easily and now have matching holes top & bottom on that W26A. That was much easier and faster than hauling the wings out of the trailer again to do another full alignment, not to mention getting the W26 off the fuselage in the first place.
Thanks to all the others who offered suggestions, and I hope not to be asking so many questions about correcting stupid errors in the New Year!
in friendship
Rowland
| Rowland Carson ... that's Rowland with a 'w' ...
| <rowlandcarson(at)gmail.com> http://www.rowlandcarson.org.uk
| Skype, Twitter: rowland_carson Facebook: Rowland Carson
| pictures: http://picasaweb.google.com/rowlandcarson
| | - The Matronics Europa-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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grahamsingleton(at)btinte
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| Posted: Wed Dec 31, 2014 2:07 am Post subject: W26 aft wing socket query |
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Rowland
those who never made a mistake never made anything! Mistakes are inevitable, the important thing is spotting them soon enough.
Happy New Yeare everyone.
Graham
From: Rowland Carson <rowlandcarson(at)gmail.com>
To: Europa e-mail list list <europa-list(at)matronics.com>
Sent: Tuesday, 30 December 2014, 18:16
Subject: Re: W26 aft wing socket query
--> Europa-List message posted by: Rowland Carson <rowlandcarson(at)gmail.com (rowlandcarson(at)gmail.com)>
On 24 Dec 2014, at 17:12, Bud Yerly <budyerly(at)msn.com (budyerly(at)msn.com)> wrote:
| Quote: | Drilling a hole in the bottom is all right also
|
Bud - thanks for that reassurance. I was worried when others mentioned that the W26 parts might be hardened, but I found that I could drill it easily and now have matching holes top & bottom on that W26A. That was much easier and faster than hauling the wings out of the trailer again to do another full alignment, not to mention getting the W26 off the fuselage in the first place.
Thanks to all the others who offered suggestions, and I hope not to be asking so many questions about correcting stupid errors in the New Year!
in friendship
Rowland
| Rowland Carson ... that's Rowland with a 'w' ...
| <rowlandcarson(at)gmail.com (rowlandcarson(at)gmail.com)> http://www.rowlandcarson.org.uk
| Skype, Twitter: rowland_carson Facebook: Rowland Carson
| pictures: http://picasaweb.googl========================http://www.matnbsp; -Matt Dralle,ist" target="_blank">http://www.matronics.com/Navigator?Europa-Listhttp://forums.mat====================
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