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glueing canopy

 
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aerobubba(at)earthlink.ne
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PostPosted: Wed Feb 08, 2006 7:35 pm    Post subject: glueing canopy Reply with quote

Hey Mickey, Charlie, Barefoot Billy et al-

After a bunch of setbacks, interruptions, sidetrack, and minor crises, I'm
finally back at it with my -8. Today I cut my (new Todd's) canopy to fit
the fuselage. I've read about all I can find on the glued canopy subject.
Standing back and admiring how much the project looks like a plane when the
canopy is in place, I had an idea. Suppose I were to put a few dabs of
SikaFlex on the roll bar and canopy bow, carefully set the canopy in place
with adequate and competent help, and then add dabs of glue around the
periphery of the canopy once it was clamped to the spacers. Once it was
cured, I could cut the canopy from the windscreen and go to work on the
full-up glue job and filleting. What do you guys think? Am I missing
something here, or wouldn't this approach simplify the whole rigging aspect
of independently gluing separate pieces of plastic to separate structures
and hoping that they line up well?

Glen Matejcek
aerobubba(at)earthlink.net


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rv8ch



Joined: 10 Jan 2006
Posts: 250
Location: Switzerland

PostPosted: Wed Feb 08, 2006 11:57 pm    Post subject: glueing canopy Reply with quote

Quote:
... Suppose I were to put a few dabs of
SikaFlex on the roll bar and canopy bow, carefully set the canopy in place
with adequate and competent help, and then add dabs of glue around the
periphery of the canopy once it was clamped to the spacers. Once it was
cured, I could cut the canopy from the windscreen and go to work on the
full-up glue job and filleting. What do you guys think? ...

When I was gluing on my canopy, I didn't have the F-821PP skin riveted
on, so your idea didn't occur to me. I did try to put some glue on
the canopy frame and set the canopy down on it, and it was a mess.

I didn't properly anticipate the exact locations on the frame where
the canopy would touch. Along the side, the location changes about
90 degrees from front to back. I ended up with a lot of glue in
places I didn't want it, so I had to have much larger fillets of
Sikaflex that I really needed.

I have done some test fitting of the windscreen to see how it will
line up, and I don't anticipate any real troubles, if that is
your major concern.

On my next canopy, here's how I'll do it:

Clamp the canopy to the frame, and use a bit of Sikaflex to
glue it on - don't try to do too much until the canopy is
glued to the frame. Once glued, then you can take your time
and run some pretty beads along the edges. I'd try to put
the glue on the bottom, not the top. You might need a very
small fillet on the top just for cosmetics. The initial
gluing step would require about 30 dabs of glue around
the frame.

Good luck!

--
Mickey Coggins
http://www.rv8.ch/
#82007 finishing


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Mickey Coggins
http://www.rv8.ch/
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Bob Perkinson



Joined: 10 Jan 2006
Posts: 51
Location: Hendersonville, Tennessee

PostPosted: Thu Feb 09, 2006 5:50 am    Post subject: glueing canopy Reply with quote

Are you talking about installing the canopy in one piece then cutting the
wind screen loose from the sliding section? If I understand the process you
are describing it sound reasonable. But this is coming from someone that
has not gotten to this point in the building process.

Bob Perkinson
Hendersonville, TN.
RV9 N658RP Reserved
If nothing changes
Nothing changes
Hey Mickey, Charlie, Barefoot Billy et al-

After a bunch of setbacks, interruptions, sidetrack, and minor crises, I'm
finally back at it with my -8. Today I cut my (new Todd's) canopy to fit
the fuselage. I've read about all I can find on the glued canopy subject.
Standing back and admiring how much the project looks like a plane when the
canopy is in place, I had an idea. Suppose I were to put a few dabs of
SikaFlex on the roll bar and canopy bow, carefully set the canopy in place
with adequate and competent help, and then add dabs of glue around the
periphery of the canopy once it was clamped to the spacers. Once it was
cured, I could cut the canopy from the windscreen and go to work on the
full-up glue job and filleting. What do you guys think? Am I missing
something here, or wouldn't this approach simplify the whole rigging aspect
of independently gluing separate pieces of plastic to separate structures
and hoping that they line up well?

Glen Matejcek
aerobubba(at)earthlink.net


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aerobubba(at)earthlink.ne
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PostPosted: Thu Feb 09, 2006 5:57 am    Post subject: Glueing canopy Reply with quote

Hi All-

I've got to stop working so late into the evening- re-reading the
available canopy gluing articles this morning, I realized that my
brainstorm last night is exactly what 'Barefoot Billy' did. DUH! Ah, well-
If you're going to say something embarrassing, you might as well do it in
front of a few thousand of your friends...

Definitely, DO NOT ARCHIVE!

Glen Matejcek
aerobubba(at)earthlink.net


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aerobubba(at)earthlink.ne
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PostPosted: Fri Feb 10, 2006 6:56 am    Post subject: glueing canopy Reply with quote

From: "Bob Perkinson" <bobperk(at)bellsouth.net>
Subject: RE: gluing canopy



Quote:
Are you talking about installing the canopy in one piece then cutting the
wind screen loose from the sliding section?

Yup- I'm currently pausing to contemplate all the ways I can screw this
up, and will hopefully come up with an idea or two that will simplify the
process.


Glen Matejcek
aerobubba(at)earthlink.net


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