Project Blue Book case file: Kenneth Arnold

The Black Vault (USAF records) · 62 pages · text by GLM-OCR

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.

Open the PDF at page 4 Original source ↗

Read from the scan by GLM-OCR; expect the odd misread word.

$$
\begin{array}{l} 1 ^ {\prime} = \frac {1}{3 4 3 7} \\ 3 ^ {\prime} = \frac {3}{3 4 3 7} \\ \end{array}
$$

10% / mile

5 miles . 1 foot in 1000 feet

Computations in the " Real Case" by Dr. Hynek, 28 u

Cited by

The Kenneth Arnold Sighting 1947

Cases discussed

The Maury Island Incident 1947
investigation of flying disc that took place in Tacoma Washington July 9 thru August 3rd
United Air Lines Flight 105 Sighting, Emmett, Idaho 1947
co-pilot Stevens of United Air Lines and myself have compared our observations
The 1947 Flying Disc Craze: America's First Flying Saucer Wave 1947
aerial search of the northwest states in an effort to see and photograph a flying disc

About this file

Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 62 pages are in the text index: search them above, or from the library's search.