The design and materials link I've already got in my references :).
The other two are also nice reference materials, thank you for that. Especially the one from fujielectric. Still a quick diagonal reading doesn't get met precise numbers on the rotor. But maybe I can deduce them from the length of the blades and the technical drawings. I'll have to look upon that later this evening after study.
I also mailed Alstom and Siemens, hopefully they're able and willing to help me with my issues. I don't know whether they answer such questions.
Anyway thanks for your response.