Government1949

Project Sign final report

When: Feb 1949
Where: Wright-Patterson AFB, OH
Sources: 2 public sources

Project Sign's final report, 'Unidentified Aerial Objects' US Air Force, Public domain, via Wikimedia Commons

Air Materiel Command issued Project Sign's final report, 'Unidentified Aerial Objects', which found no proof either way that the objects were real unknown aircraft. An appendix by RAND's James Lipp judged visits from space very improbable.

Sources

OfficialUnidentified Aerial Objects: Project 'Sign' (February 1949) (opens in a new tab)U.S. Air Force (copy hosted by the Internet Archive) / 1949-02
OtherHistory of the United States Air Force UFO Programs: Project Sign (Thomas Tulien) (opens in a new tab)Sign Oral History Project

How sources are chosen and tiered

Where it fits

Earlier in GovernmentFBI San Antonio memo on unexplained phenomena near Los Alamos31 Jan 1949 Later in GovernmentProject Grudge replaces Project Sign11 Feb 1949

See it on the timeline More in Government