USAF Project SIGN cases:

Project Sign was an official U.S. government study of Unidentified Flying Objects reports undertaken by the US Air Force in late 1947 and dissolved in late 1948. SIGN was instigated following a recommendation from Lt. General Nathan F. Twining, then the head of Air Materiel Command, who had reviewed previous reports abd concluded that the reported phenomenon "was something real and not visionary or fictitious". SIGN would ultimately conclude that the UFOs are interstellar extraterrestrial spaceships, but this conclusion would be rejected because there was no known hard evidence of it such as a piece of flying saucer. Here are come UFO reports collected by project SIGN.

August 4, 1947, Alaska, Bethel area, sighting by pilots Peck and Daly.

This page was last updated on February 5, 2006