[NSRCA-discussion] SYMPHONY PICS

[Dwayne Brown]

Gray, when you get the mat'l tell me how much I owe you and I will send you
a check.  I am waiting for the CF to begin repair of the fuselage.  Ralph is
supposed to send me the wings at the end of the week.  I am trying to get
ready for the contest in Nederland as Ralph has challenged me to be there.
Dwayne

 

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Gray E Fowler
Sent: Thursday, May 08, 2008 2:39 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] SYMPHONY PICS

 


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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