MORTAL SCIENTIST STANDARD
She has to remember that the maximum acoustic environment for the spacecraft occurs during liftoff and transonic flight. The specific spectrum and duration used in her design should function according to the configuration of the engines and the characteristics of the acoustic blankets.
This ought to give her a broad understanding of how the X-30 antagonist spaceship will fare when launched. We can see that she was busy calculating her numbers. She had to make sure they tallied. A minuscule mistake will spell doom.