On Dec 9, 7:05*pm, karen wrote:
No moisture drain hole in the spoiler enclosures. Searched for any
blog or discussion group on this subject. No joy.

Waiting to hear back from the factory for a mod or some solution
besides a hangar or wing covers.

Doesn't water get in also flying through storms and perhaps freeze as
you go high enough?

Are all 500 and 505' the same?

Thanks.

Karen

Karen

If spoiler boxes don't have drain holes, you have to keep water out of
them. Closed spoilers alone definitely won't keep water out.
Recently, I spent an agonizing hour fishing baguette sized chunks of
ice out of ASK-21 spoiler boxes after a snowstorm.

Control rods and their fittings will eventually corrode even though
they have some anti-corrosion protection. There's also the possibility
of ice whose expansion can damage both the box structure and control
fittings. Standing water inside airframes is really bad news,
particularly in freeze thaw weather, no matter what material they are
made from.

If the glider is tied outside, taping some plastic sheet over the
spoilers will keep water out. I'd also probably just drill some 3mm
drain holes too but that could be questionable from a legal point of
view. (BTW, Plexiglas drills make really neat holes in composites.)