If you need compressor or gas turbine data for conceptual or deatiled design / cost analysis check out these two homepages:
http://esolar.cat.com/solar/main/
and
http://www.gepower.com/home/index.html
In both cases you need to create a log-in but for GE you also need to be approved. But they really got some serious data there. One-stop-shop i would call it.
