astheFlightI/IIDDG-51s,generallyhaveanestimatedservicelife(ESL)of35years,meaning thatretirementoftheseshipscouldbegininthelate2020s,althoughasmallnumberofFlightI/II DDG-51shavebeencertifiedfora40-yearlife.AdditionalFlightI/IIDDG-51smighteventually receivesimilarcertifications,dependingontheirconditionandNavymi...