The Shuttle Landing Facility (SLF), also known as Launch and Landing Facility (LLF), is an airport located on Merritt Island in Brevard County, Florida, United States. The facility opened in 1976 and operated under the FAA designation X68 until June 10, 1993, when the designation was changed to TTS. It is a part of the Kennedy Space Center and was used by Space Shuttle for landing until July 2011. It was also used for takeoffs and landings for NASA training jets such as the Shuttle Carrier Aircraft, Shuttle Training Aircraft, T-38 and for civilian aircraft.