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yok war nee te ee sate. yore om, lod Sates anes £QEI CPTI * - KNOXVILLE DETACHMENT a 8th District OSI (Ic) any 4 Xnorville, Tennessee 7 oe . 5s cae at lk Octeber 1950 SUBJECT: Unidentified Flying Objects over Oak Ridge, Tennessee TO: District Commander - 8th District OSI (1G) Maxvell AFB, Ala. Thie letter its to cenfirm spot repert given you headquarters on 13 Octeber 1950. Beginning at 2325, EST 12 October 1950 a total of eleven (11) obd- jecte and possibly more appeared om the radar screen of the CPS-l Air Force Radar Station at McGhee-Tyson Airport, Enoxville, Tennessee. The Objects begaa appearing om the narth edge of the Cak Ridge controlled area and proceeded south for about twenty (20) to thirty five (35) miles at the rate of 100 to 125 mile per how, at an altitude of 1000 te 5000 feet, on a course of 170 to 230 degrees and with densities varying from that of light liaison aircraft up to that of a C-47 type aircraft. f GU, ccatroller at the radar station, “scrambied” an F-be fighte at 2330 and the fighter was airborne at 2339. GRR vectored the plane on two (2) specific targets on stern approaches at distances of one fa) and eight (8) miles reapectively. On each occasion the fighter appeared to intercept the target on the growd radar screen; however, on each occas- fon the crev of the fighter observed no target either visually or on their airvorne radar screen, The aircraft returned to the airport at 001s. After the sighting of the midentified targete the Oak Ridge Security Pstrol was alerted and attempts at ground ebservations were made; hovever, nothing could be seen or beard from the ground. At 0100 more abjects, having the eam readings as previously, appeared oa the screen. On thie occasion no attempt at fighter interception was made. Ground observation Tesulte in the Oak Ridge area vere negative. During the above sightings Eastern Air Defense Force Headquarters was notified and checked for possible flights in the ares. Checks were aleo made vith flight service at Atlanta and Marvell AFB. All cheoks proved moegative. eee - om is | cose 4 On the afternoon of 13 October 1950 the undersigned accompanied offic~ ; | Sale ef the Security Division Ateaic Energy Division and the Knorville CIC 2. - efeiee te the radar station where a conference was held with officers of > i") the radar station and a team of redar experte from Esetern Air Defense Heqi- quarters, Numerous explanation such as flocke of migratory birds, clonds, a flight of light planes fran the nearby Oliver Springs Airport, etc, were Fuled out. One explanation advanced that 1% might bave been due to bS- SE SeV—-/ 356 ENCLEOUE we oa