The surface combatant Integrated Power System (IPS) propulsion Engineering Development Model (EDM) for the U.S. Navy’s new Zumwalt-class DDG 1000 destroyer is being tested at the Land-Based Test Site (LBTS) at the Ships Systems Engineering Station, Philadelphia, PA. The new destroyer will be an all-electric ship. Unlike conventional arrangements where the installed prime mover devotes power to main propulsion, the Zumwalt-class ships will have two large gas turbine generators and two smaller ones that provide power that can be used for propulsion, weapons or ship services. Efficient power management makes the ship’s installed power available to all of the electric loads throughout the ship.