Group /Category 9 - Radar Case
 Case Directory
Radar Visual: Hynek Case RV-7
Lincoln Air Force Base, Nebraska
February 13, 1957

On February 13, 1957, a challenging Radar-Visual case occurred at Lincoln Air Force Base in Nebraska. The Blue Book summary reads:

Objects were visually observed by three control tower operators and by the Director of Operations, who was in town to supervise a wing mission. Objects were also observed on radar by the Non Commissioned Officer in Charge (NCOIC) of the control tower and the Ground Controlled Approach (GCA) operations (two separate radar installations). The objects were observed for a period of three to five minutes.

The individual objects were about five to six miles behind an airliner and moving twice as fast. . . . One of the objects broke in two and another made a 180-degree turn. All objects were interrogated by Identification Friend or Foe (IFF) with no response. Visual estimation of the size of the objects was impossible, but the radar operator stated that the blip on his scope was about the same size as that received from a B-47. The objects appeared to stand still and then speed up and rush away.

Blue Book, applying its standard theorem, evaluated the sighting as "probable balloon" and "probable aircraft."

Dr. J. Allen Hynek

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