The hydrofoil boat has an A992 steel propeller shall that is 100 ft long. It is connected...

The hydrofoil boat has an A992 steel propeller shall that is 100 ft long. It is connected to an in-line diesel engine that delivers a maximum power of 2500 hp and causes the shaft to rotate at 1700 rpm. If the outer diameter of the shaft is 8 in. and the wall thickness is § in., determine the maximum shear stress developed in the shaft. Also, what is the “wind up." or angle of twist in the shaft at full power?