Express the theory of flight associated with rotary aircraft, and rotary wing aerodynamics, explaining such things as gyroscopic precession and effects of torque reaction and directional control.

Write a technical essay (maximum two pages) about stress concentration. and paste from the textbook. instead, read updated material about this phenomenon and provide a technical evaluation of the different techniques to avoid/reduce such phenomenon. consider in your analysis cutting-edge computational techniques such as fea to study and analyze stress concentrations.