| 4 Apr 1952 - Duncanville, Texas, USA |
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4 April 1952 20:30 Duncanville, Texas, USA 
Radar tracked unidentified target by FPS-10 radar
USAF Cpl. Billy D. Greer and PFC John W. Harrington of the Radar Maintenance Section, 147th AC&W Squadron, tracked unidentified target by FPS-10 radar first to the northwest at 310°-315° azimuth at about 70 nautical miles (80 miles) moving at high speed of about 2,160 knots (2,500 mph) until it disappeared off scope at maximum range of 260 nautical miles. (300 miles). Height-finder reading not taken, estimated at 42,000+ feet due to radar beam coverage at max range. An object was tracked by radar. One object was observed by two military witnesses and radar at a military facility for over five minutes (Greer, Billy D; Harrington, John W). Hynek rating: RV: Radar-Visual UFO reports Vallee rating: MA2: MA1 plus any physical effects caused by the UFO. Vallee reliability rating: 342: Reliable source, firsthand; site visit by a skilled analyst; natural explanation requires major alteration of one parameter. Other sightings in this area Sources: - 55 - 676 |
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