Disclosed

British activity in the Field of "Unidentified Flying Objects"

Date
Dec 1952
Place
Yorkshire, England, United Kingdom
Record
Pentagon file
Assessment
Not assessed
Evidence strength
467 case pages by decade; this one falls in 1950s with 49 othersAll cases

What was reported

A December 18, 1952 CIA memorandum relays a report from a CIA messenger who spoke with R.V. Jones (a senior British defense scientist) about a standing British flying-saucer committee. It states that roughly 10-12 days earlier, a 'Yorkshire incident' occurred at an RAF airfield: a 'perfect flying saucer' was seen by senior RAF officials and pilots during some kind of demonstration event, generating public press coverage that concerned Jones. A second page discusses US concerns that UFO reports could overload emergency communications or be exploited to induce mass hysteria, to be addressed via the Federal Civil Defense Administration.

What officials concluded

No conclusion stated

The file gives no official explanation.

Agency
CIA
Released in

Evidence profile

Sensors1 of 9
  • Yes: Visual
  • No: Infrared
  • No: Radar
  • No: Video
  • No: Photo
  • No: Film
  • No: Audio
  • No: Night vision
  • No: Other sensor
Witnessescount not stated
  • No: Civilian
  • Yes: Military aircrew
  • No: Military ground
  • No: Airline crew
  • No: Sensor operator
  • No: Law enforcement
  • No: Scientist
  • No: Astronaut
  • Yes: Intelligence official
  • No: Other
ShapeDisc
  • No: Light only
  • No: Orb or sphere
  • Yes: Disc
  • No: Triangle
  • No: Cylinder
  • No: Cube
  • No: Other shape
Effectsnone reported
  • No: Physiological
  • No: Physical trace
  • No: Electromagnetic
  • No: Sound
  • No: Silent

Why this rating Thirdhand relay (messenger reporting a conversation) with no description beyond the phrase 'perfect flying saucer,' no witness names, no instrumentation, and no follow-up data in this file.

As described in the file

Witnesses
Senior RAF officials and RAF pilots (unspecified number) at a Yorkshire airfield
Sensors
Visual
Shape
Described only as 'a perfect flying saucer'

Pentagon files

1

What the file claims

1
  • Unverified

    Senior RAF officials and pilots at a Yorkshire airfield saw 'a perfect flying saucer' during some form of official demonstration, generating press coverage.

On the map

53.90° N, 1.20° W, plotted at the centre of the region named in the record

Show on the map