An aircraft component is being designed for a life of 105 Ground-Air Ground cycles with an R ratio=0. A possible material is aluminum 2024 T3. Calculate the permissible constant amplitude stress range for the component to achieve this life, using the Basquin and Goodman equations, taking values for the constants in the Basquin equation for 2024 T3 at R = -1 as σf=1044 MPa and the exponent b =-0.114. These values represent the mean fatigue life properties. The ultimate tensile strength of the alloy is 486 MPa. Take the maximum service stress as 60% of your calculated value to allow for scatter in fatigue behavior.