VS-31
Sea Control Squadron 31 Topcats was a United States Navy anti-submarine warfare squadron.
During WWII there was a scouting squadron which carried the designation VS-31. It was established as Scouting Squadron 31 in 1942, based at Naval Air Station Squantum, Massachusetts. It flew the dive bombers Douglas SBD-5 Dauntless, then the Curtiss SB2C-4E Helldiver in the North Atlantic until disestablished at the end of the war in 1945.
The squadron which is the subject of this article was established as Composite Squadron VC-31 on 28 September 1948 at NAS Atlantic City, New Jersey, was re-designated Air Anti-Submarine Squadron 31 on 20 April 1950 and moved to NAS Quonset Point, Rhode Island. Originally flying the Grumman TBF Avenger, these were later replaced by the Grumman AF Guardian and the Grumman S-2 Tracker in 1954, and finally by the Lockheed S-3 Viking. In 1973, VS-31 was relocated to NAS Cecil Field, Florida, and eventually to NAS Jacksonville. On 1 October 1993 the VS designation was changed from "Air Anti-Submarine Squadron" to "Sea Control Squadron and VS-31 was renamed Sea Control Squadron VS-31. It was finally deactivated at NAS Jacksonville effective 31 March 2008, with a deactivation ceremony which took place on 27 March.