How does the angle of attack vary along a rotor blade if it is not twisted?
The old PHD in areodynamics seems to have got harder, you must
be thinking of a career in blade design, I can only answer that
question in German or Danish, when you get your PHD you should
think BIG and apply for local work over there, i can promise you
plenty of jobs, maybe even start your own company and the bus ill
take you there no bother....