According to a Lockheed Martin Press release:
FORT WORTH, Texas, Feb. 15, 2013
The first Lockheed Martin production model F-35C carrier variant, known as CF-6, flew its first sortie Thursday.
Upon delivery later this year, the jet will be assigned to US Navy Fighter Attack Squadron 101 (VFA-101) at Eglin AFB, Florida.
The unit will serve as the Fleet Replacement Squadron, training Navy F-35C pilots and maintainers.
While CF-6 will be the first carrier variant jet assigned to Eglin, it will join a fleet of nine F-35A conventional takeoff and landing (CTOL) jets and 13 F-35B short takeoff and vertical landing (STOVL) jets already on station.