Author: "bunderhill2004" <bunderhill2004@...> Time: Tue Aug 23, 2005 8:58 am PDT Link
I started trimming the canopy yesterday. The whole process seems
straight froward enough although measure three times cut once will be
the watch word.
A few of my builder friends have started bugging me about bonding
rather than screwing and riveting the plexi to the frame. They say its
the newest process and removes the danger of cracking both in assembly
and operation since there are no drilled holes in the plexi and thus no
stress concentration points.
Has anyone heard of this bonding process? Apparently the glue used is
similar to proseal but lighter (beige) in colour.
How much cracking has been hapening anyway?
Regards, Bruce.
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Author: "Stanley Peternel" <crocker.rocker@...> Time: Tue Aug 23, 2005 9:24 am PDT Link
I haven't heard of a bonding process yet....If done carefully there will be no cracking.....Follow the plans....Make sure the plexie is warm....
----- Original Message -----
From: bunderhill2004
To: RV-9A@yahoogroups.com
Sent: Tuesday, August 23, 2005 7:02 AM
Subject: [RV-9A] sliding canopy bonding
I started trimming the canopy yesterday. The whole process seems
straight froward enough although measure three times cut once will be
the watch word.
A few of my builder friends have started bugging me about bonding
rather than screwing and riveting the plexi to the frame. They say its
the newest process and removes the danger of cracking both in assembly
and operation since there are no drilled holes in the plexi and thus no
stress concentration points.
Has anyone heard of this bonding process? Apparently the glue used is
similar to proseal but lighter (beige) in colour.
How much cracking has been hapening anyway?
Regards, Bruce.
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Author: Michael Schipper <mike@...> Time: Tue Aug 23, 2005 5:12 pm PDT Link
Having just completed this part of the process, it occurs to me that
you will have considerable trouble aligning and holding the skirts,
reinforcement strips, and other ancillary components if you don't
have any holes to cleco through.
Mike Schipper
www.my9a.com
On Aug 23, 2005, at 10:02 AM, bunderhill2004 wrote:
> I started trimming the canopy yesterday. The whole process seems
> straight froward enough although measure three times cut once will be
> the watch word.
> A few of my builder friends have started bugging me about bonding
> rather than screwing and riveting the plexi to the frame. They say its
> the newest process and removes the danger of cracking both in assembly
> and operation since there are no drilled holes in the plexi and
> thus no
> stress concentration points.
> Has anyone heard of this bonding process? Apparently the glue used is
> similar to proseal but lighter (beige) in colour.
> How much cracking has been hapening anyway?
> Regards, Bruce.
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Author: "bunderhill2004" <bunderhill2004@...> Time: Wed Aug 24, 2005 6:25 am PDT Link
--- In RV-9A@yahoogroups.com, Michael Schipper <mike@l...> wrote:
Mike, I think you are correct, and I certainly appreciate your
comments. I don't feel like pioneering and I don't think it is
necessary, so I am going stick to the classic rivets and screws. My
friends can experiment on their own airframe. Only thing is... if I
get a crack, I'm going to be buying them coffee and hamburgers for a
year! I finished the trimming tonight and it turned out pretty good.
It took me almost as long to clean up the plastic dust out of the
shop as it did to cut the plastic, and I look like a powdered mime.
I am disappointed in that the wind screen at the roll bar is too low
by 3/32. I have arleady cut 5/32 off the roller bow bottoms so it
looks like some serious shimming to get the wind screen at leat even
with the slider bow. I am now considering shims under the roll bar
attachment bottoms. I seem to remember similar problems by others.
regards, Bruce.
> Having just completed this part of the process, it occurs to me
that
> you will have considerable trouble aligning and holding the
skirts,
> reinforcement strips, and other ancillary components if you don't
> have any holes to cleco through.
>
> Mike Schipper
> www.my9a.com
> On Aug 23, 2005, at 10:02 AM, bunderhill2004 wrote:
>
> > I started trimming the canopy yesterday. The whole process seems
> > straight froward enough although measure three times cut once
will be
> > the watch word.
> > A few of my builder friends have started bugging me about bonding
> > rather than screwing and riveting the plexi to the frame. They
say its
> > the newest process and removes the danger of cracking both in
assembly
> > and operation since there are no drilled holes in the plexi and
> > thus no
> > stress concentration points.
> > Has anyone heard of this bonding process? Apparently the glue
used is
> > similar to proseal but lighter (beige) in colour.
> > How much cracking has been hapening anyway?
> > Regards, Bruce.
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