The Naval Research Laboratory recently concluded an evaluation of a prototype built by General Motors for an unmanned undersea vehicle fuel cell that is at the heart of the vehicle's power train, according to the service. The tests pave the way for developing an at-sea prototype. The recent test events were conducted in pools at the Naval Surface Warfare Center in Carderock, MD. "Our in-water experiments with an integrated prototype show that fuel cells can be 'game changers' for autonomous...
