Designs, develops, implements, verifies, and tests algorithms and software and simulation tools to perform guidance, navigation, and control of aircraft, spacecraft, submersibles, surface ships, missiles, launch vehicles, and upper stages during powered and coast phases of launch, flight, Earth orbit, interplanetary cruise and orbital insertion, as well as during staging events. Control design and analysis processes consist of the development of the control laws and hardware and software requirements for aircraft, launch vehicles and/or spacecraft.