Fighter Squadron Composite 111 (VFC-111), also known as the "Sun Downers", is a United States Navy Reserve adversary squadron based at Naval Air Station Key West, Florida. Currently, it operates Northrop F-5N/F Tiger-IIs, of which most are single-seater F-5Ns and one twin-seater F-5F, the "FrankenTiger".

Fighter Squadron 111 (VF-111), also known as the Sundowners, was a fighter squadron of the United States Navy. Originally established as Fighter Squadron 11 (VF-11) on 10 October 1942, it was redesignated as VF-11A on 15 November 1946, redesignated as VF-111 on 15 July 1948 and disestablished on 19 January 1959. On 20 January, another squadron, VF-111 (1956-95) then assumed the designation until its de-establishment in 1995. In November 2006, VFC-13 Detachment Key West was redesignated as VFC-111, taking on the Sundowner insignia and callsign.