The problem here is that any sort of repair will never have the integral
strength of the original lay-up. Essentially any adhesive employed will
only be attaching itself to already-cured laminate/matrix.
The most appropriate adhesive would be the original epoxy-type, but I
would liek to drive the point home that you will never achieve a
homgenous bond (single cured phase) given the already cured materials
present. This will be a problem.
Given what I see in those pics, you are going to have to somehow attach
the wing mounting system such that the loads are transfered "directly"
to the rest of the lower fuselage.
If you do somehow determine what epoxy was employed, and can figure out
a reliable means of mechanically re-attaching the wing hold-down system,
and you actauly(!) decide to use that fuse again...consider autoclaving
(hotbox) the entire repair at ~120-130F for a few hours, then allow to
cool slowly. However check first to see whether the design is already
heat-cured - if so then this elevated cure process will not be
effective. This will cause the existing cured matrix and the now-new
matrix to be elevated past their room temp glass transition point. The
result will be at least a partial bonding of the old and new.
I suggest that lateral loads from catching wingtips is going to create
concern with this pod/boom system. I wish you luck with the repair
attempt....
[EMAIL PROTECTED] wrote:
Supra Enthusiasts,
Check out the latest failure mode shown on my web site
(www.hilaunch.com <http://www.hilaunch.com>) under photos. The
beginning of the problem showed at Phoenix when the rear of the CF cap
that holds the wing attachment nuts came loose. I applied a generous
amount of epoxy, but that repair did not solve the problem. On a
landing yesterday, the entire wing with the hold down bolts popped from
the fuse. Fortunately the landing had been completed and there was no
additional damage.
If you have a good idea about how to repair this problem, send me an
email.
Don Richmond
San Diego, CA (Pensacola, FL today)
[EMAIL PROTECTED]
www.hilaunch.com
--
Simon Van Leeuwen
RADIUS SYSTEMS
PnP SYSTEMS - The E-Harness of Choice
Cogito Ergo Zooom
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