turboprops' drive shaft tech specs
 

Hello everyone :)
I'm an aerospace eng. student from Rome, Italy. Anyone here can help me, providing me technical specs of a generic driveshaft for turboprop? Cannot find anything on the internet :(
I just need applied torque, maximum specific rotation, and the material costants. Sorry for my poor technical english but I just know those terms in my language :uhoh:

For example:
applied torque = 5000 Nm
G (Al 2024T6) = 27 GPa
maximum shear stress = 300 MPa

Also, any link to turboprops' blades motion would be appreciated (I must evaluate the impulsive load due to the eventual stop of the engine). I'm having my aerospace construction science course now, but I still haven't had classes about turboprops. Thank you!