The 42d Tactical Missile Squadron is an inactive United States Air Force unit, formed in 1985 by the consolidation of two units. The first is the 2d Search Attack Squadron, which tested antisubmarine warfare tactics and equipment at Langley Field, Virginia during World War II. The second is the 942d Forward Air Control Squadron, which was activated following the Korean War, but does not appear to have been equipped or manned. The consolidated squadron has not been active.

The first predecessor of the squadron was activated at Langley Field, Virginia as the 2d Search Attack Squadron. The squadron was primarily equipped with Douglas B-18 Bolos. It tested electronic equipment and trained crews for its use in antisubmarine operations; antisubmarine patrols, July 1942 until late 1943."

The second predecessor of the squadron is the 942d Forward Air Control Squadron, which was activated as the Korean War was ending in June 1953. With the end of the war the following month, it apparently was not manned or equipped until it was inacrivated in March 1954.

The two squadrons were consolidated in September 1985 as the 42d Tactical Missile Squadron.

 This article incorporates public domain material from the Air Force Historical Research Agency