# June 21, 1952 — Oak Ridge, TN — Radar Visual near AEC Plant

**URL:** https://uapdiscovery.discourse.group/t/june-21-1952-oak-ridge-tn-radar-visual-near-aec-plant/194
**Category:** Blue Book Unknowns
**Created:** [June 21, 2025, 3:03am UTC](https://uapdiscovery.discourse.group/t/june-21-1952-oak-ridge-tn-radar-visual-near-aec-plant/194 "2025-06-21T03:03:53Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![jeffknox](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)
#### Post date: [June 21, 2025, 3:03am UTC](https://uapdiscovery.discourse.group/t/june-21-1952-oak-ridge-tn-radar-visual-near-aec-plant/194/1 "2025-06-21T03:03:53Z")

</div>

![06211952-OakRidgeTN-105th_Fighter_Squadron_P-47N_45-49253](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/1X/660ad4611669d252677caed244ad4be2ddd499c5.jpeg)

June 21, 1952 — Oak Ridge, TN  
10:58 p.m. A Ground Observer Corps spotter at Oak Ridge, Tennessee, sees a small (6–8 inches in diameter), slow-moving UFO near the AEC plant. GCI radar obtains the target, but it fades from the scope. An F-97 on combat air patrol engages in a “dogfight” with the object, which makes “ramming attacks” at the aircraft. It blinks until it speeds away. [Eberhart]

Blue Book Questionnaire:

 ![06211952-OakRidgeTN-BB-Questionnaire-p1](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/1X/5e9c8102efd1aadff209fa0d6237fe2536cd81ef.jpeg)  
 ![06211952-OakRidgeTN-BB-Questionnaire-p2](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/1X/a22411bdcec05bb68eb8e3839d1558784dfd5097.jpeg)

Telex:

 ![06211952-OakRidgeTN-BB-PilotTelex-p1](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/1X/cab786af88e98bf35e4f9a582a0c23c9dd977e1f.jpeg)  
 ![06211952-OakRidgeTN-BB-PilotTelex-p2](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/1X/0bce1d77ae112c6f325368b5e49ad4304c25857d.jpeg)

Sources:  
Brad Sparks, Blue Books Unknowns Catalogue, Case 629, p. 140;

 ![06211952-OakRidgeTN-Sparks-Case629-p140](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/1X/d75286a78a90a87d4e9cc41eba500e8e1b5daeab.png)

Edward Ruppelt, The Report on Unidentified Flying Objects, p. 43;

 ![06211952-OakRidgeTN-Ruppelt-p43](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/1X/1a1e5637320023c61e4d33cde5954a1c07f530ac.jpeg)

Donald Menzel, The World of Flying Saucers: A Scientific Examination of a Major Myth of the Space Age. Doubleday. 1963, p. 76;

 ![06211952-OakRidgeTN-Menzel1963-p76](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/1X/5b6eb4b6fc0225864471da00d04f97844a2097b0.jpeg)

NICAP, “Radar Visual near AEC Plant”;

> **[UFO Report](https://www.nicap.org/520621oakridge_dir.htm)**