At 19:12 06 September 2008, Cats wrote:
On Sep 6, 7:23=A0pm, John Galloway wrote:

=A0You can easily blow water
beads off the covers by mouth - they just run away. =A0I have been
feelin=
g
inside the wing covers of a couple of gliders parked out all wet
summer
i=
n
them and the interior is dry - unlike my Jaxidas.

And they are new this season - are your Jaxidas?. The acid test will
be in 2-3 years. One problem with mine that seems to be resolving
itself was leakage through the seam along the top of the canopy
cover. BTW was advised to use baby wipes to clean off bird p**!

My Jaxidas are 2 years old but they are made with their newer outer
material which has not deteriorated and seems to be waterproof. What
seems to happen is that in very wet conditions the separate inner
corrugated material absorbs water. My speculation is that it is the
unintended consequence of having a flapping/flexible structure raised
slightly off the wing that allows (sometimes very humid) air to circulate
over the glider surfaces - especially when there are windy conditions. I
think that it is better to have a waterproof but breathable and fairly
heavy and inflexible material lying directly on the wing to minimize
under-the-cover air movement but allow water vapour to escape when the
rain stops.

John Galloway