Now that is something interesting.

Doesn't seem to have crossed the big pond so far...

--
Bert Willing

ASW20 "TW"


"Marske Flying Wings" a écrit dans le message de
...
The use of wood in a glider is not really recommended any longer, nor is
the
combination of wood and fiberglass. Ineveitably the wood and fiberglass
tend
to separate. It is better to use an all fiberglass structure and I even
avoid the use of foam.

Spars constructed with carbon rovings are unpredictable and tests have
shown
that compression and tension readings are very low ( 30.000- 60,000 psi)
whereas using a carbon rod will give a predictable 300,000 psi.