It's unlikely you can contribute to all these areas. Circuits is generally a specialist domain. After a circuits class or two you may think you understand it, but you haven't even scratched the surface of what you need to know to be able to advance the state-of-the-art. It sounds to me like you want to do Mechanical or Aerospace Engineering. The electronics in these systems are either purchased from vendors or designed by distinct groups. Certainly not by the systems engineers working on the engines.
If you take major in EE you will only have a tiny bit of fluid mechanics so that might not be the right training to help you reach your goals.