30°23'6"N 81°24'32"W Naval station Jacksonville a.k.a. Mayport Base http://www.cnic.navy.mil/regions/cnrse/installations/ns_mayport.html Former WW1 army camp. In 1940 reassigned NAS Jacksonville and during WW2 a trainingbase and POW camp. In 1948 the first jetfighters were introduced. and renamed NAS Jacksonville remained a training base. USMC base 1970-1986. From 1957-1981 the base has also been used by USAF Air Defence Cmd as a SAGE radarstation.Renamed again Naval Station Jacksonville 2004
- Hq US Naval Forces Southern Command / 4th Fleet http://www.navy.mil/US-NAVAL-FORCES-SOUTHERN-COMMAND-US-FOURTH-FLEET/
- Patrol and Reconnaissance Wing Eleven with an Aviation Support Detachment; Patrols Squadrons (VP) 5, 8, 10, 16, 26 and VP-45 and unmanned patrol squadron (VUP) 19 operating Ep-3 Orion, P-8 Poseidon and the unmanned MQ-4C Triton aircraft.
- Helicopter Maritime Strike Wing, Atlantic Fleet with Helo Squadrons Maritime 46; 60 (Reserve); 70; 72 and 74 All based at NAS Jacksonville flying and maintain MH-60R helicopters
- Patrol Squadron 30 (VP-30) the US Navy’s Maritime Patrol and Reconnaissance Fleet Replacement Squadron (FRS). Its mission is to provide EP-3 and P-8 specific training to pilots, naval flight officers, and enlisted aircrew prior to reporting to the fleet.
- Fleet Logistics Support Wing (Navy Reserve) with Reserve Squadrons VR 58 and 62 and VP 62