An aerial view of the Naval Station Mayport, Florida (USA). In port are the aircraft carrier USS Saratoga (CV-60, left) and USS Constellation (CV-64)., 1993

USA

Naval Station Mayport (IATA: NRB, ICAO: KNRB, FAA LID: NRB) is a major United States Navy base in Jacksonville, Florida. It contains a protected harbor that can accommodate aircraft carrier-size vessels, ships intermediate maintenance activity (SIMA) and a military airfield (Admiral David L. McDonald Field) with one asphalt paved runway (5 23) measuring 8,001 × 200 ft. (2,439 × 61 m).[1] Since its commissioning in December 1942, NS Mayport has grown to become the third largest naval surface fle.. Read more »et concentration area in the United States. Mayports operational composition is unique, with a busy harbor capable of accommodating 34 ships and an 8,001-foot (2,439 m) runway capable of handling most aircraft in the Department of Defense inventory.