The Navy is on track to complete the new FF(X) frigate design by the end of this month, according to a service official. Following the Navy’s decision to scrap the Constellation-class frigate program last year, the service announced HII’s Ingalls Shipbuilding would design and build a new frigate, based on the HII-built Legend-class National Security Cutter already in use by the Coast Guard. According to recent budget documents, one frigate will …