The "NAS Jacksonville FL (U.S. Navy)" refers to Naval Air Station (NAS) Jacksonville, a United States Navy air station located in Duval County, Florida. It is one of the larger naval stations in the U.S., serving as both a Master Jet Base and an Airborne Command and Control Center for fleet command and control functions. The base houses various tenant commands, including the Naval Aviation Schools Command, the Helicopter Sea Combat Wing Atlantic, and the Coastal Riverine Group (CRG) 2. It plays a crucial role in the U.S. Navy's carrier operations, offering flight training for naval aviators and maintenance technicians. The NAS Jacksonville FL is significant in supporting the U.S. Navy's mission of maintaining naval aviation readiness around the world.