Roger on that UH, when we had several G-103's on lease back we added
drain holes at the inboard end and sealed the holes with epoxy. Also
watch the drain holes the ailerons, we found one plugged (like I
forgot to re-drill it after a repair) and found the scoop forward of
hinge line full, frozen and jammed!
Cheers,
JJ

wrote:
On Dec 10, 8:26*am, Andreas Maurer wrote:
On Wed, 9 Dec 2009 18:05:15 -0800 (PST), 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?

Not a single of the current German gliders built later than 1980 has a
drain hole in the spoiler box.

Bye
Andreas

Our ASK-21 has drain holes
It isn't a big deal to add a small hole 3/16 diameter or so at the low
point if you are getting water accumulation in the wing.
It's much better to drain if you are getting any significant water in
the wing.
Concern about drag- tape it . I predict you can't measure this drag,
If a hole is put in, it would be wise to seal the foam core with a
little epoxy to keep water out.
UH