June 15, 1952 — Louisville, KY
11:50 p.m. Edward Duke, a former Navy radar technician, sees an unidentified cigar-shaped object in the vicinity of Standiford Field [now Louisville International Airport], Louisville, Kentucky. It has a light on either side of the fuselage and a reddish hue on the trailing end. The object appears to be moving at about 400–500 mph and maneuvers around in several directions for 15 minutes, then descends and flies away to the northeast. [Eberhart]
Sources:
Brad Sparks, Blue Books Unknowns Catalogue, Case 618, p. 138;
[Blue Book document];