Hello mateus,
You may wish to read the
Free Flight article,
"Flying Motorgliders ... is still a work in progress" (pages 10-14), by Réal Le Gouëff. As you'll see, it contains a fairly detailed discussion of both the Discus CS and the 2T. Not exactly the same as the 2cT, I know, but should still be of some use.
Réal also maintains a
Discus 2 Turbo Web Site, and if you'd like to email him I'm sure that he'd be pleased to correspond with you.
I hope this helps!
MLS
P.S. to Gengis: a turbo glider like the Discus 2cT is a sustainer,
not a self-launcher ("take-off as god intended", indeed ... what drivel).