Air Force Investigation into multiple witness UFO sighting on 8 July, 1947,
at Muroc Air Base in California. (4th AF
Files.)
Memo describing UFO encounter by civilian air crew over
Bethel, Alaska, on August 4, 1947. (4th AF
Files.)
Mysterious Unidentified Supersonic Radar Targets, Japan, 1947.
Top Secret Item of Current Intelligence Interest, detailed reports
of sightings, affidavits and technical analysis of "A-1: Completely reliable" radar sighting of unidentified aircraft.
Memorandum from Lt. Colonel Springer to Headquarters, Sixth Army, San
Francisco, detailing 14 August, 1947 UFO sightings in
Guam. (4th AF Files.)
Letter from prospector, Fred M. Johnson to Headquarters, Fourth Air Force, reporting his "flying disc" sighting on the
same day as the Kenneth Arnold Mt. Rainier event. (4th AF Files.)
Lt. General Nathan Twining's 23 September, 1947 letter to Brig. General
Schulgen outlining AMC's "Opinion Concerning
'Flying Discs'." (National Archives at College Park.)
28 October, 1947 Memo from Brig. General George F. Schulgen, Air
Intelligence Requirements Division, outlining
"intelligence requirements in the field of Flying
Saucer type aircraft." (National Archives at College Park.)
Suspecting that "flying discs" could be Russian developments of advanced
German World War II aircraft designs, Air Material Command (AMC) at Wright
Field directed CIC-Europe to interview "German
aircraft specialists and test pilots who might have some knowledge of
similar aircraft." Memo dated 10 November, 1947.
(Document via FOIA request to the US Army Intelligence Command (INSCOM).)
Following interviews with engineers involved with advanced German WW II
aircraft designs, AMC operatives handcarrried orders to CIC-Europe
directing them to track down the Horten brothers, builders of "flying
wing" type aircraft. This SECRET 16
December, 1947 report from U.S. Army Intelligence HQ, Berlin, details
the interrogation of the Horten brothers and their responses to questions
about "flying saucer"-type aircraft being based on their designs.
(Document via FOIA request to the US Army Intelligence Command (INSCOM).)
