COGAG: Combined gas and gas marine propulsion system, like COGOG in that it has two types of gas turbines, but both can simultaneously contribute to the propeller
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- Marine propulsion : Power source and means of propelling ships in straight lines through water; some systems also may add directional control
- Gas turbine : Add brief definition or description
- Burke-class : Large U.S. Navy multirole destroyers equipped with AEGIS battle management system and constant upgrades; Japan has Kongo-class clones, also being upgraded to ballistic missile defense; South Korea has the KDK-class