Ian,
It is my humble opinion that all you need is mylar!
I believe this because my Nimbus 3 was exactly the
same as another local Nimbus 3, I mean exactly the
same...........same climb, same cruise. I could even
tell the difference in a couple of extra gallons of
water. My internal seals were wearing out, so I just
pulled them out without removing the controls and replaced
them with mylar. Guess what? No change in the ships
performance!!!

I'd cover the hinge gaps on your LS-3 with little pieces
of mylar on the flaps and ailerons (look at a ASW-27)
they did a meticulous job installing mylar. Then select
mylar that just touches the control surface and doesn't
go any further. If the mylar is lifted when control
in moved, you will get increased stick pressure and
it would be a shame to lose the light stick your LS-3
has.

I have seen teflon tape that covers the lower gap with
mylar over the teflon. I don't believe it is necessary.


Don't know if zig-zag works on the LS-3, anybody got
performance feedback on that?
JJ



At 10:06 08 August 2007, Ian wrote:
On Sun, 29 Jul 2007 17:41:26 +0000, mmartin via AviationKB.com
wrote:

I've read all the posts, several times, regarding
mylar seal replacemate. My
LS3-A needs the seals replaced and am considering
doing the job myself. Is
this something a reasonabley compitent person can
do on his own, or should
this be left to a pro? Your input would be appreciated.

Our LS3a has internal seals, which will need replacing
soon, and no mylar.

Which is the best way to go, internal seals or mylar
(or both) and why?

My gut feel is that the airfoil wont benefit much from
mylar provided that
the hinge gap is sealed to prevent air leakage from
the lower to upper
surface - as is the case with internal seals.

We also use a textured duct tape on the lower (hinge)
side of the joint. I
presume with mylar, the hinge tape would fall away.

There is currently some 'raised bump' (zig-zag like)
tape just upwind of
the joint on the underside. I doubt this helps and
if it does, the
textured hing tape should have the same effect. We
will probably take off
the bump tape when we do the hing seals again.

But how much work is install internal seals verses
mylar?

Thanks


Ian