180109-N-JE719-003 ATLANTIC OCEAN (Jan. 9, 2018) Senior Chief Electronics Technician (Navigation) Carl L. Shafer poses for a photo aboard Pre-Commissioning Unit Colorado (SSN 788). Colorado is the 15th Virginia-class attack submarine and is scheduled to be commissioned March 17, 2018. (U.S. Navy photo by Mass Communication Specialist 1st Class Jeffrey M. Richardson/Released)