Disclosed

Joint U.S.-Canadian Aviation Projects and UFO Sighting Reports, 1954-1955

Date
6 Jul 1955
Place
Newfoundland (KC-97 radar/visual case); Malton, Ontario (Avro Project Y2), Canada
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 Scientific Advisory Board report on the classified Avro Canada 'Project Y2' VTOL circular-planform aircraft (November 1954, signed by Gen. James Doolittle as Acting SAB Chairman), assessing its resemblance to popular UFO descriptions and recommending only limited support; correspondence recommending that UFO reports near Soviet military assets be re-examined for possible advanced VTOL misidentification; and a July 1955 memo on a KC-97 tanker crew's visual sighting over Newfoundland, corroborated by simultaneous GCI ground radar returns, which an Air Force committee could not explain and formally classified as UFOB, tentatively deferring to a Northeast Air Command evaluation of electrical phenomena and aircrew misinterpretation.

What officials concluded

Unresolved

The review committee tentatively accepted the Northeast Air Command's evaluation attributing the incident to electrical phenomena combined with aircrew misinterpretation, but stated it was 'unable to explain the simultaneous ground radar…

Agency
Department of War
Released in

Evidence profile

Sensors2 of 9 · multi-sensor
  • Yes: Visual
  • No: Infrared
  • Yes: Radar
  • No: Video
  • No: Photo
  • No: Film
  • No: Audio
  • No: Night vision
  • No: Other sensor
Witnesses97 counted
  • No: Civilian
  • Yes: Military aircrew
  • No: Military ground
  • No: Airline crew
  • No: Sensor operator
  • No: Law enforcement
  • No: Scientist
  • No: Astronaut
  • No: 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 The Newfoundland KC-97 case combines two independent sensor types (airborne visual and ground GCI radar) with an explicit official admission that the correlation could not be explained, which is stronger than most files in this batch; however, it remains a single incident with only tentative, unconfirmed conventional attribution rather than confirmed multi-sensor tracking of an anomalous craft.

As described in the file

Witnesses
KC-97 tanker aircrew (Newfoundland, 6 July 1955)
Sensors
Radar, visual
Shape
Circular/saucer-like (per description of the sighted object and the Avro Y2 comparison)

Pentagon files

1
  • DocumentDOW-UAP-D095Release 4

    DOW-UAP-D095, Joint U.S.-Canadian Aviation Projects and UFO Sighting Reports, 1954-1955

    Open the original on war.gov

What the file claims

4
  • Unverified

    A KC-97 tanker crew's 6 July 1955 sighting near Newfoundland was independently corroborated by simultaneous GCI ground radar returns, and an Air Force review committee could not explain the correlation between the visual and radar data.

  • Unverified

    The incident was formally classified as UFOB (Unidentified Flying Object) and the committee recommended immediate fighter scrambles for any future incidents of this nature.

  • Unverified

    The Scientific Advisory Board's Aircraft and Propulsion Panels assessed Avro Canada's circular VTOL 'Project Y2' after a site visit, concluding the project warranted only limited support.

  • Unverified

    A 1954 Air Force memorandum recommended that UFO reports occurring near Soviet military assets be re-examined to assess whether they might reflect a previously unknown advanced foreign VTOL aircraft.