On 13 Apr 2005 05:26:07 -0700, wrote:


Mr Hanle of Glasflugel(Glasswing) was very active in the development of
turbine blades as a parallel activity to many contributions to
developing the art of building sailplanes. Possibly the photos of
blades were taken about the time that S/H was in the process of
absorbing Glasflugel after his death.

S/H built the blades for the first truly huge wind energy rotor,
called GROWIAN, with a rotor diameter of about 300 ft. Afaik this
happened in the early 80's.

We have a couple of guys in my club who earn their living by designing
and building such rotors (blade length up to 200 ft - per blade!) -
believe me, noone is going to want a glider that is built with the
same quality as a wind energy rotor.


Bye
Andreas