August 28, 1947 — Shika Island, Japan
Microwave Early Warning radar on Shika Island off Fukuoka, Japan, picks up a target moving 450–478mph at an altitude of 1,500 feet. It changes course, climbs, and is tracked to a distance of 62 miles. [Eberhart]
Memorandum for assistant chief of air staff - 2: Radar pick-ups of high speed targets in the Far East. September 26, 1947;
FEAF Report
Sources:
Brad Sparks, Blue Book Unknowns Catalogue, Case 53, p. 27;
NICAP, “Target Tracked in a Climb”;