March 29, 1952 — nr. Misawa, Japan
11:20 a.m. Near Misawa, Japan, USAF Lt. David Conant Brigham is flying a T-6 target plane on a practice intercept mission for two F-84s. The first F-84 overtakes him at 6,000 feet when the T-6 pilot notices a small disc gaining on the interceptor. The UFO curves toward the F-84, decelerates rapidly, then flips on edge in a 90° bank. It flies between the two aircraft, pulls away, flips again, passes the F-84, crosses in front, and accelerates out of sight in a near vertical climb. Both pilots notice the object, which comes within 30–50 feet of the T-6. The pilot estimates it is only 8 inches in diameter. There is a ripple around the edge. [Eberhart]
BB Summary:
Air Intelligence Report:
Sources:
Misc. Unsourced Newsclips:
“Air Force Reveal Flying Disc Pass at U.S. Jet Near Siberia Border,” New York (N.Y.) Journal-American, January 27, 1953, p. 2;
“Air Force Reveals Flying Disk ‘Made Pass’ at Jet Fighter-Bomber over Northern Japan,” Scranton (Pa.) Times, January 28, 1953, p. 7;
https://www.newspapers.com/article/the-times-tribune/144356663/
Donald Keyhoe, Flying Saucers from Outer Space, pp. 192-192;
Brad Sparks, Blue Books Unknowns Catalogue, Case 524, p. 126;
C. W. Fitch, “Monitoring and Scanning UFOs,” APRO Bulletin, March 1963, p. 5;
Richard Hall, The UFO Evidence, p. 5;
“UFO Makes ‘Pass’ At Jet,” UFO Research Newsletter 4, no. 2 (October-November 1974): 6-7;
Loren E. Gross, UFOs, a History: 1952, January–May, The Author, 1993, pp. 27-28;
Jerome Clark, The UFO Encyclopedia, 3rd Ed., p. 377;
Jerome Clark, The UFO Encyclopedia, 4th Ed., p. 421;
Robert Powell, UFOs: A Scientist Explains What We Know (And Don’t Know), 2024, p. 46;
NICAP, “Brigham/T6 Case: UFO Makes Pass at F-84”;




















