[NSRCA-discussion] SYMPHONY PICS

[Gray E Fowler]

Dwayne

I replied, but the lousy email source we are on ate the message I do 
believe..as there is no record so I will type it again..

Only one photo opens-call behind canopy and it is blurred, but I think I 
see the failure.  I will not be able to send any material this week so if 
you are in a big hurry  (repair this weekend) you can use fiberglass. To 
repair saturate the inside core material with epoxy about 1 inch past the 
damage. Use 3-4 oz fiberglass and wet lay up over the damage plus 1 inch. 
So have a 2 inch wide piece of fiberglass for the repair. After the inside 
repair cures, try to flex the area that was damaged...if the damaged area 
does not flex then you are done...it is flexes easily then sand and remove 
all paint and primer. Wet layup a patch of 2 oz fiberglass on the outside. 
Fill,feather, prime, paint.

What the repair needs to establish is reinstating the stiffness of the 
structure. It will always be much stronger than needed for flight. 
Stiffnes =good load distribution and good flight characteristics.




Gray Fowler
Senior Principal Chemical Engineer
Radomes and Specialty Apertures
Technical Staff Composites Engineering
Raytheon



"Dwayne Brown" <dwaynenancy at suddenlink.net> 
Sent by: nsrca-discussion-bounces at lists.nsrca.org
05/08/2008 02:25 PM
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Gray, did you receive my pictures I sent last night?
            Dwayne_______________________________________________
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