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“Operation Mainbrace”

Stories2

The Akureyri Spheres
October 26, 1952 · Akureyri, Eyjafjörður, northern Iceland
Iceland
UAP · Sphere · 17 sources
25Thinly documented
The RAF Topcliffe "Perfect Flying Saucer" During Exercise Mainbrace
September 19, 1952 · RAF Topcliffe, near Thirsk, North Yorkshire (approach to RAF Dishforth)
United Kingdom
UAP · Disc / saucer · 20 sources
33Partially documented

Documents4

  • The UFO files extract Document
    The National Archives· 22 pages· 3 pages mention it
    • p. 11 …sightings occurred during a major NATO exercise in Europe, Operation Mainbrace.The most dramatic was reported by a group of…
    • p. 14 …classified mission’ during which one admitted the sightings during Operation Mainbrace had ‘caused the RAF to officially recognise the UFO…
  • FBI file: UFO, UFO Part 12 FOIA release
    Federal Bureau of Investigation· 142 pages

    …We are only too willing to co-operate in any way we can with Civil Defense. The city…

  • The National Investigations Committee on Aerial Phenomena (Nicap) FOIA release
    Central Intelligence Agency· 2001-03-12· 186 pages· 7 pages mention it
    • p. 136 …Silvery disc followed Meteor jet, descended with pendulum motion. See ("Operation Mainbrace") chronology. Section XII. See "Operation Mainbrace" chronology, Section…
    • p. 164 …A particularly interesting series of reports came from the vicinity of the "Operation Mainbrace" NATO maneuvers then in progress. The…
  • NZDF declassified RNZAF UFO files Document
    NZDF / RNZAF via Internet Archive· 2010-12· 445 pages· 1 page mentions it
    • p. 343 …a flying Disc reported by Air-Force personnel dueing Operation Mainbrace, and did not dismiss the report as "Meteorological Phenomena…

Videos2

Video1952
UFOs / USOs - Operation Mainbrace - 1952
From The RAF Topcliffe "Perfect Flying Saucer" During Exercise Mainbrace
Video1952
Inside Project Blue Book: Operation Mainbrace (Season 2) | History
From The RAF Topcliffe "Perfect Flying Saucer" During Exercise Mainbrace