August 3, 1952 — Hamilton AFB, CA
4:15 p.m. Two huge silvery discs are observed visually and tracked on radar for 1 hour and 15 minutes over Hamilton AFB [now closed] near Novato, California. The ground observers are pilots Capt. Leslie R. Hadley, Capt. Wayne T. Perske, and 2d Lt. Duane A. Swimley. They dive at each other and maneuver as if in a dogfight. After F-86s are dispatched to intercept, 6 more objects appear, take up a diamond formation, and accelerate out of sight. [Eberhart]
AF-112:
Questionnaire:
Questionnaire 118 (Capt. Hadley):
Sources:
Brad Sparks, Blue Books Unknowns Catalogue, Case 762, p. 165;
Loren E. Gross, UFOs: A History, August 1952, The Author, 1986, pp. 20-21;
Michael D. Swords, “Intelligent Motions,” IUR 33, no. 1 (March 2010): 14, 15;
NICAP, “Eight Huge Objects Observed by 8 Witnesses and Radar”;
Project 1947, “Hamilton Air Force Base, Hamilton, California, August 3, 1952”;