RADCAT Case Directory
  Category 9, RADAR  
 
  Preliminary
Rating: 5  

                                   
     

RADCAT is a revitalized special project now being conducted jointly by NICAP & Project 1947 with the help and cooperation of the original compiler of RADCAT, Martin Shough, to create a comprehensive listing of radar cases with detailed documentation from all previous catalogues, including UFOCAT and original RADCAT.

Radar Visual Near AEC Plant
June 21, 1952
Oak Ridge, Tennessee


Brad Sparks:
June 21 [23?], 1952; 10 mi. NNE of Maryville, Tenn. (BBU)
(June 21 GMT Z-time).  0:58-11:15 p.m. (EST).  Oak Ridge GOC post spotted target at very high altitude, reportedly confirmed by ADC 663rd AC&W radar but soon lost [CPS-6B? P-42 Permanent-42 ADC Site, Lake City, Tenn., or by TPS-1B L-47 Lashup-47 ADC radar site at McGhee-Tyson Airport, Maryville ?].  F-47 fighter on combat air patrol protecting Oak Ridge AEC base (USAF Lt James W. Wilson) sighted blinking (6-8-inch ?? 6-8-foot ??) white light on what was assumed to be a larger highly maneuverable jet-like aircraft though no silhouette could be seen around the light.  UFO made ramming attacks on the F-47 at 10,000 or 15,000 ft (?) to 22,000 ft by dropping down 4,000-5,000 ft, able to “outmaneuver and outclimb” F-47 at indicated air speed ~290 mph.  Radar controller notified ADC Air Defense Control Center and obtained permission to fire on UFO but F-47 unable to get into firing position.  UFO’s white blinking light became steady when doing power maneuvers.  Final attack run from UFO came from estimated 28,000 ft down to F-47 at 22,000 ft, then UFO pulled back up to 25,000 ft while F-47 continued climb to 23,000 ft, UFO disappearing by blinking out or fading due to distance [through broken cloud layer at 23,000 ft].  Attempted BB explanation of lighted weather balloon “dog-fight” failed as the lighted 100-gram pilot balloon was launched from McGhee-Tyson Airport near Maryville at 10:00 p.m. and was tracked by weather observers until light failed at 10:13-10:15 p.m. at 14,000-16,000 ft who saw no F-47 or UFO or “dog-fight” since it happened 45 mins later at 10:58-11:15 p.m.  (Sparks;  30th Air Div Hist., Apr-June 52, Jan Aldrich Project 1947;  BB Maxwell Microfilm Roll 10, pp. 1481-1497;  Ruppelt pp. 43-44;  Menzel 19634+ witnesses

Capt. Edward J. Ruppelt:
June 21, 1952; Oak Ridge, Tennessee
10:58 p.m. A Ground Observer Corps spotter reported that a slow-moving craft was nearing the AECs Oak Ridge Laboratory, an area so secret that it is prohibited to aircraft. The spotter called the light into his filter center and the filter center relayed the message to the ground control intercept radar. They had a target. But before they could do more than confirm the GOC spotter's report, the target faded from the radarscope. An F-47 aircraft on combat air patrol in the area was vectored in visually, spotted a light, and closed on it. They "fought" from 10,000 to 27,000 feet, and several times the object rnade what seemed to be ramming attacks. The light was described as white, 6 to 8 inches in diameter, and blinking until it put on power. The pilot could see no silhouette around the light. The similarity to the Fargo case was striking. ("Report on Unidentified Flying Objects", Ruppelt).

Detailed reports and documents
reports/520621oakridge_rep.htm (Dan Wilson)


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