The Navy took delivery of its newest attack submarine, PCU New Mexico (SSN 779), from Northrop Grumman Shipbuilding (NGSB) Dec. 29, four months earlier than its contract delivery date. New Mexico is the sixth Virginia-class submarine and the third delivered by NGSB. "New Mexico performed superbly on sea trials," said Rear Adm. William Hilarides, program executive officer for submarines. "Her early delivery keeps us firmly on pace for a 60-month construction span by the end of the Block II contract." Capt.