I know of '27s with waterbags that have had significant problems with this.
My '27 sn 27119 is the first production "B" model---I got it new in Dec
1999. It has flown mostly in contests with water and I have not flown it but
1 hr in the last year. Until then it had 249 hr. It has lived in my air
conditioned basement in its trailer its whole life--certainly "archival
storage".

Last year I measured the wings--out of interest, after talking to other '27
owners. Mine measures 0.002" or less everywhere except one small section,
about 6" long spanwise, just outboard of the right spoiler box, which was
0.003-0.004".

It has been tied out a few nites at contests in very benign weather.

I have only flown 120 kt or more a few minutes, and never over 135.

I don't know if any of this makes any difference, just adding to the data
pool.

--
Hartley Falbaum
ASW27B "KF"
wrote in message
oups.com...
Mike the Strike wrote:
One of the reasons I switched to Schemmp-Hirth from Schleicher was the
latter's recent problems with wings, especially the ASW-27, which was
my intended new ship.

Any thoughts on why this is happening? Based on my experience and that
of others, the ASW 24 has one of the most stable composite wings
around. I hope to get around to sanding mine this winter but it's still
in great shape--even under the dial gauge--and it's nearly 15 years
old. I'm told the '26 is similar. Yet the '27 and now the '29 are said
to be much less so. Did changing to hard tanks from ballast bags
trigger this? Different wing design? Different materials? Is it
happening to every glider out there or just intermittantly?

Chip Bearden
ASW 24 "JB"