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Old May 15th 17, 04:16 PM posted to rec.aviation.soaring
Papa3[_2_]
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Posts: 664
Default LS4 aileron gap seal and mylar seal width

Apparently this is an Eric(k) only thread :-)




On Monday, May 15, 2017 at 11:15:05 AM UTC-4, Eric Munk wrote:
Don't mess about with seals. They can be fairly critical. Put in the
internal
aileron seals as they should be according to manufacturer. Just resealed
two
ls4s, only took two hours each to do re

The new manuals show very precise what needs to go where.

Eric

At 13:06 15 May 2017, Papa3 wrote:
Hi Eric,

Couple of thoughts. First, the best place to discuss LS-specific topics
(s=
uch as what width of mylar to use) is probably the LS-Gliders discussion
gr=
oup over on Yahoo. Lots of knowledge, diagrams, photos, etc. =20
=20
https://groups.yahoo.com/neo/groups/LS-gliders/info

As far as your specific question, I've done LS4's both ways. The
maintena=
nce manual calls for internal, rolling S-Seals. They're kind of a pain

to
=
do, but they are very effective. Many competition-tuned LS4s have

these
=
plus the external, mylar, wiper seals. IIRC, the for the last set of
my=
lar wiper seals I did on an LS4 I think I used 35MM. Someone else

posted
=
the link to Streifeneder; probably worth contacting them to see what's

in
=
their LS4 kit. =20

Erik Mann (P3)
Former LS4 owne


On Sunday, May 14, 2017 at 10:43:29 PM UTC-4, Eric Foertsch wrote:
A couple questions.
=20
I had ailerons removed for refinishing and now looking at maintenance

man=
ual to see what is needed for the gap seal. The maintenance manual
indicate=
s using double sided adhesive to glue non-adhesive gap seal between wing
an=
d aileron.
=20
I could have sworn though that the gap seal was installed more like the

r=
ight hand diagram at http://wingsandwheels.com/tapes-seals.html - which
sho=
ws using adhesive backed gap seal tape.
=20
I didn't see anything in glider log book about the gap seal being

replace=
d, so was wondering if the factory gap seal might have changed over time.
=20
Would it be OK to use the adhesive gap seal tape? And if so what

width?=
=20
=20
The advantage would be the ailerons can be put back on by A/P and I can

a=
pply the gap seal and Mylar seal myself at a later time.=20
=20
With the double sided adhesive/non-adhesive gap seal tape I would have

to=
have it at installed on wing before the ailerons get put back on.
=20
Also does anyone know the proper width of the mylar seal? The former

owne=
r had replaced the mylar seals and I just want to double check the proper
w=
idth was used. I could not find a reference in the manual for the proper
wi=
dth.
=20
Thanks
=20
Eric




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