On Feb 2, 2009, at 7:02 AM, ALAN YERLY wrote:
> the forward D tube of the wing is foam and glass sandwich only
> supported by the root rib and the next rib is nearly 16 inches
> further outboard. I'm afraid the flexing of this area means any
> filler in that area will crack. The depth of the filler is quite
> thick here due to the transition from the wing fillet. That is why
> I have started to add glass layers over the filler from the fillet
> outboard to try to stiffen this area.
Bud,
After following this thread, I'm tempted to suggest another possible
solution.
I have some 1/8 inch Lastafoam; after sanding off the gelcoat, I could
bond a piece say 6 inches wide and say 10 inches (fore and aft) onto
the top of the D tube abutting the edge of the wing root
fairing...then sanding it down (inboard) level with the thickness of
the fairing and carefully feathering it down to nothing
(outboard)...this would avoid excessive depth of filler...then cover
what's left of the foam w/ some FG, say 2 layers of BID lapping over
the wing root fairing.
Caution, of course, should be observed for any alteration of the
airfoil, but conceptually, one would strive to maintain what results
---From the use of filler in this area...merely substituting foam for
filler.
Your reaction?
Fred
PS: I appreciated your post a while back which cautioned against any
attempts to close the trim tab control arm slots in the fuselage,
saving me some time and potential grief...thanks!
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