lomapaseo
Thanks for your post. Your comments regarding the airfoils is well taken. The Trent 900 is an extremely high performing engine that produces higher pressures, temperatures, rotational speeds and thrust, higher stresses go with the package. In this new generation of engines, the turbine airfoils are highly loaded, 3-D designed for optimum aerodynamic performance and there are less of them to save weight meaning they have to work harder to extract more energy in the same axial distance span. I hadn't given this a thought until you brought the subject up, indeed they have to go away fast!