Case Directory - Category: 01; Distant Encounters & Category 09; Radar Case
Subject:    Oak Ridge Security Guard Reports Spinning Object/ Radar Detects UFO
Date:        October 16, 1950
Location:  Oak Ridge, TN

Francis Ridge:
Surprisingly this was neither listed among the original BB Unknowns, nor the updated Comprehensive Catalog of Project Blue Book Unknowns by Brad Sparks. It wasn't on our site and wasn't listed among the 200 nuclear connection cases by Larry Hatch (NCP-03). The Air Force documents were found originally by Dan Wilson on the BB Archive site and I matched it up with the report by Bruce Maccabee. I then located the AFOSI documents in my files and scanned them in. (See report and document links below). The documents clearly show radar had detected UFOs at the same time.

NARA-PBB90-638: "At about 1520 EST 16 October, while Special Agent William S. Price was present, a report came from the AEC Patrol to the radar station relating that a Trooper Isabell and four civilian employees at Oak Sidge had observed a "silver disc" hovering over the K-25 Plant in the controlled area. The radar screen was able to pick up an indistinct target about every three (3) or four (4) sweeps of the indicator. An F-82 fighter plane was sent to attempt an intercept of the object. The airborne radar of the fighter picked up a target which later proved to be a light aircraft. The ground observers reported that the F-82 passed under the "silver disc" while it was in pursuit of the light plane. The crew of the fighter observed nothing unusual. Nothing further was learned of the sightings."

For reports, documentation, analysis or discussions - see below:
Oak Ridge Security Guard Reports Spinning Spherical Object, Oct 16, 1950 - Bruce Maccabee
Oak Ridge Security Guard Reports Spinning Object - BB Microfilm - Dan Wilson
FBI Letter of Oct 18, 1950: Objects Over Oak Ridge, Oct 12,15,16, 1950 (transcripted)
AEC Report by Troopers Clark & Briggs
AEC Incident Report by Trooper Isabell
FBI Incident Report, dated 16 Oct, 1950, Clark and Briggs
FBI Report, dated 16 Oct 1950, Trooper Isabel, Page 1
FBI Report, Isabell, Page 2
FBI Report, Drawing
The Oak Ridge Page

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