On Dec 11, 10:15*am, John Smith wrote:
bildan wrote:
If the glider is tied outside, taping some plastic sheet over the
spoilers will keep water out.

Eight short pieces of duct tape (one for each joint) seal them pretty
well and are a matter of a few seconds. At least that's what I do when
for whatever reason I have to leave a glider outside overnight. Every
glider pilot should have a roll of duct tapy handy, anyway.

That said, I consider it pretty cruel to tie a plasic glider outside.

It's pretty cruel to leave any glider outside no matter what it's made
of. Freeze-thaw cycles will even work rivets in an aluminum aircraft
loose.

Then there's the experience of having a bucket of ice water dumped
down your collar from where it collected inside the wings of a 2-33 as
your student grinds the glider to a stop on the skid.

I remember flying a Pratt-Reed on a ridge in a driving rainstorm.
(Yeah, I know.) My passenger called my attention to an alarming
amount of water collecting in the bottom of the cockpit pod. I used a
pencil to punch some drain holes through the fabric so we didn't have
to land.