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This US Air Force Project Blue Book case file on Kenneth Arnold's sighting of nine objects near Mount Rainier, Washington, on 24 June 1947 was released through The Black Vault. It contains the Project 10073 record card, which concludes the objects were a mirage, plus Arnold's telegram, questionnaire data and interview notes. It also includes J. Allen Hynek's analysis arguing the objects were closer and slower than Arnold estimated. Other items are David Johnson's sworn statement on a Boise sighting, a Tacoma investigation telegram and news clippings.
Read from the scan by GLM-OCR; expect the odd misread word.
This design portrays the movements of the object to which reference is made in the attached statement. At all times the object appeared as black. Positions (1), (2) and (5) show the jerky, rising motion. Position (4) is where the object rolled, presenting its edge to me. It then followed the dotted line, rolling over the top of the maneuver and disappearing at position (5).
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