fiberglass repair?

On Monday, August 10, 2015 at 4:59:42 PM UTC-7, wrote:

Original poster- contact me off line and I will give
you some guidance without the panic mongering.

Seconded. This looks like it'd be a pretty straightforward repair, nothing to get too bent out of shape about. Hank will set you straight.

Thanks, Bob K.

That really does look relatively minor.
I have seen much bigger, and very poorly repaired damage where they were
discovered under decades old bondo and gelcoat. Having not caused any
problems for all of those many years of abuse and neglect...

I suspect most older glider structures are way over strength, because
they did not have the finite element analysis to say how strong to make
it - and newer ones are also over strength to get the required
stiffness/ crashworthiness.

That looks like it needs to be cleaned up over an appropriate area, and
the appropriate multi layer repair effected in accordance with the
manual. No big deal. (but quite a lot of effort)

Just saying.

On 2015-08-11 07:40, Bob Kuykendall wrote:
On Monday, August 10, 2015 at 4:59:42 PM UTC-7, wrote:

Original poster- contact me off line and I will give
you some guidance without the panic mongering.

Seconded. This looks like it'd be a pretty straightforward repair, nothing to get too bent out of shape about. Hank will set you straight.

Thanks, Bob K.


--
Bruce Greeff
T59D #1771

Is there a reason this damage cannot be repaired by putting simple multilayer patch (right size, of course) on the inside surface? With proper overlap it gives you original strength without time-consuming surface finish work. Why not take advantage that fuselage shell is not sandwich structure and inside of the shell is easily accessible?