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DOW-UAP-D102: Project Blue Book File on Tremonton Film, Utah, 1952

Department of War · 2026-09-18 · 156 pages · text from the file's own layer

This Department of War release reproduces Project Blue Book records on the Tremonton, Utah film of 2 July 1952. In them, Navy Chief Photographer Delbert C. Newhouse explains how he filmed a group of bright objects near Tremonton. ATIC memos and a December 1952 travel report record Navy and General Mills balloon specialists judging that the objects closely resembled pillow balloons. A January 1953 memorandum discusses publicly releasing the film. The file also includes unrelated sighting reports from Phoenix and Massachusetts, plus material about Donald Keyhoe.

  • p. 73 …readings were averaged and advanced one reading each deter minant. Of the M:>ntana film, densities…
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• UNCLASSIFIED
him to make any estimates as to size, speed, or distance.· Toward the end of
his observation one of the objects reversed course and proceeded ava, from the
rest of the group. He held the camera still and all owed this ingle object to
pass aaross the fiel~ of view of the cpmera picking it Up again later in ita
travel. He repeated this for two or three passes. By this time all the objects
had disappeared.
The movies have been studied by the Photo Beconnaiaeance J.abora~~ \lr~ A1r
Develo~nt Center yright-Pat'kuon AFB, Ohio 1 and by the u.s. Navy Phou, Inter
pretation Center, Washington, D. C. Since there was no known obj ect auoh a.a a
cloud, tree, or mountain 1n the film, it waa hipose1ble to make even a. rough
eatimate as to the speed, di tanae, or size. The size of the images on the
movie film were too small to show BJlT details. ~e movie have been studied by
persons engaged in work with balloons end the appearance and action of the objects
ve s1mUar to that of pillow belloona. These balloons are called pillow bw.loona
due to their e1mile.r1ty to a pillow.. Hundreds of these balloons were JllSde and
nown 1n the u.s. end overseas during the Crusade for Freedom. Attenq)ts to
trace these balloons to determine whether &n7 left over from the Crusade for
Freedom ootild have been launched 1n the Tremonton area. were negative. Another
strong poeeibility is t.bat the objeot vere sea gulls soaring thermal. a1r current•.~
• Movies of sea s taken una.er e1m'3ar lighting conditions showed the sea gulla
present time the Air Force contemplates no :future action will be taken to ident1f'y
the objeats.
UNCLASSIFIED
DECLASSIFIED Authority NND 923007
ANALYSIS DIVIS:ON F,LE
--'-/O _o].3
FILE NU, BER
INITIALS

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Document, cited by the archive. The PDF is mirrored here; the original link is above. 156 pages are in the text index: search them above, or from the library's search.