Included in the base are: Naval Air Station Key West – This is the main facility on Boca Chica. The air station's primary purpose is readiness training for carrier-based strike fighter, electronic attack and carrier airborne early warning squadrons of the U.S. Atlantic Fleet and U.S. Pacific Fleet, primarily via the Fleet Fighter Aircrew Readiness Program (FFARP), honing the skills of Naval Aviators and Naval Flight Officers in air combat training prior to overseas deployment. An additional squadron permanently based at NAS Key West, Fighter Composite Squadron 111 (VFC-111), is composed of both active duty and Navy Reserve pilots who fly F-5 Tiger II aircraft as simulated enemy aggressors in Disimilar Air Combat Training (DACT) for Fleet aircrews, primarily using the offshore Key West Tactical Air Crew Training System (TACTS) Range. Permanent party officer and enlisted personnel assigned to NAS Key West are primarily housed at the Navy's Sigsbee Park housing area eight miles to the west or in private housing on the local economy. In 2006 there were 1,650 active duty personnel; 2,507 family members; 35 Reserve members; and 1,312 civilians listed at the base. In the 1990s the Navy worked out an agreement with the National Park Service to eliminate sonic booms in the vicinity of Fort Jefferson in the Dry Tortugas. Many of the training missions are directed at the Marquesas "Patricia" Target due west of the base. The target is a grounded ship hulk in length that is visible only at low tide. Bombs are not actually dropped on the target. Truman Annex – The area next to Fort Taylor became a submarine pen and was used for the Fleet Sonar School. President Harry S. Truman was to make the commandant's house his winter White House. The Fort Taylor Annex was later renamed the Truman Annex. This portion has largely been decommissioned, with Fort Zachary Taylor conveyed to the State of Florida as a state park and the remainder turned over to private developers and the city of Key West. There are still a few military and U.S. government offices and facilities there, including the new NOAA Hurricane Forecasting Center and the military headquarters for Joint Interagency Task Force South, an element of U.S. Southern Command. The Navy still owns its piers. Trumbo Point Annex – The docking area on what had been the railroad yard for Flagler's Overseas Railroad is now used by the Coast