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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.
“The Advance”1 page
' COdi! 01/m,w/lbh Jl2 •UNCLASSlFLED Serial: MAY 4 Subj: Interpretation of Movies of Unidentified Objects; progress report on 4. All objects appear to have the same characterist ics in regards to shape, color, size and rel&tive motion. 5. The shape of the objects appears to be oblate or disk shaped, color; blue-white, and maximum and minimum size; 98 and 16 feet. The size is baaed on the assumpt ion that the objects are five miles from the observer. 6. Fade in and fade out of the objects were ana.J.-rzed as i n 3 above. In this case the group movement was such that the distance between the objects and camera was increased so that the objects could not be recorded on the film thereby ca.using the apparent fade out. Fade-in as attributed to a shortening of the distance from the fa.de-out area to the c.e.mera station . 7. Plots of the groups i ndicate that the objects move counter clock-wise relative to the axis of flight path. However, nothing he.a been detected which indicates motion of t he i ndividual objects about their own axis although this motion appears to be likely . 8. In determining the velocity of the objects three assumptiorus were ma.de: a. The camera was held steady during Part III of the film. b. The objects were moving perpendicular to the optical axis, and c. The objects were five miles from the camera. It is obvious that (b) is a fallacy; however, this assumption will give the minimum velocity and the actual velocity is greater than computed. The assumption that the objects are five miles f'rom the camera is a n arbitrary one. However, based on the emulsion speed and focal length, an object 50 feet in diameter and five miles -from the camera will be recorded on the film with sufficient resolution to identify major details of the object. It is felt that if these objects were closer than five miles at the time of recording, <ll.etails would appear on the film. Velocity is computed to be 3780 mph for a snift of 1 mm per frame 1f the object is five miles from the observer. From 55 measurements taken from Pa.rt III of the Utah f'ilm, the maximum and minimum velocities DOWNGRADED A'f 8' ffiAR 11'1TERYAL"8. DECLASSIFIED AFTER 12 YEARS ' DOD DlR 6200.10 • 5
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