Overview Department 489 (D489) is part of the Integrated Power Systems (IPS) Directorate responsible for developing components for the COLUMBIA Class (CLB) and future platform electric drive main propulsion systems. D489 is seeking engineers to support the programmatic and technical development of the present and future electric drive propulsion systems and components. The D489 Advanced Electric Technology (AET) development team is continually integrating the lessons learned from the first gene