The Navy is expanding efforts to develop and design the DDG(X) large surface combatant's power and propulsion system, according to a request for information issued today. Power and propulsion equipment manufacturers, power systems integrators and academics are encouraged to share information with the Navy to further DDG(X) development. The request for information comes as the Navy also holds an industry day today where updates on the Land-Based Test Site in Philadelphia -- the facility designated for propulsion system development --...