July 12, 1952 — Montrose Beach, Chicago, Il
8:42 p.m. O’Hare AFB weather observer Capt. W. J. Shea and a civilian, Jane Morrison, watch three lights, one main red light with smaller white lights on each side, traveling 500 mph at 40,000–50,000 feet over Montrose Beach, Chicago, Illinois, from the west-northwest. They accelerate to the south and make a 180° turn heading north-northwest, then disappear. The UFO is seen by 400+ people, with 14 others making reports to the 4706th Defense Wing located at O’Hare Airport. [Eberhart]
Sources:
Edward Ruppelt, The Report on Unidentified Flying Saucers, p. 153;
Brad Sparks, Blue Book Unknowns Catalogue, Case 671, p. 146;
