Documents / FOIA release
This is a US Air Force Project Blue Book fact sheet dated 1 February 1966. It explains the program's history as Projects Sign and Grudge, its two objectives, its three-phase investigation process, and how reports are classed as identified, insufficient data or unidentified. It concludes that no UFO has threatened national security or shown technology beyond current science, and that nothing indicates extraterrestrial vehicles. It also includes sighting statistics for 1947 to 1965 and an American Meteor Society fireball report form.
“US Air Force”4 pages
' .j l PROJECT BLUE BOOK 1 FEBRUARY 1966
FOIA release, from the osd collection. The PDF is mirrored here; the original link is under it. 12 pages are in the text index: search them above, or from the library's search.