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This Project Blue Book file, released through The Black Vault, collects US Air Force records from 1950 to 1959 on the movie film Nicholas Mariana shot at Great Falls, Montana on 15 August 1950. It includes the OSI interview report, letters about borrowing and copying the film, and a 1956 Douglas Aircraft analysis. Blue Book's own findings were not consistent: one letter lists the cause as unknown, while later memos conclude the objects were probably two F-94 jets.
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# DEPARTMENT OF THE AIR FORCE HEADQUARTERS UNITED STATES AIR FORCE WASHINGTON UNCLASSIFIED THE INSPECTOR GENERAL USAF 15TH DISTRICT OFFICE OF SPECIAL INVESTIGATIONS GREAT FALLS AIR FORCE BASE, GREAT FALLS, MONTANA IN REPLY REFER TO: 21-0 6 October 1950 MEMORANDUL FOR: District Commander, 5th District Office of Special Investigations, Wright-Patterson Air Force Base, Dayton, Ohio. SUBJECT: UNCONVENTIONAL AIRCRAFT 1. On 5 October 1950, Mr. advised that the camera used by him in the taking of the moving picture film transmitted under separate cover, was a Revere, 16 mm., magazine loading type with an F.1.9 wide-angle, telephoto lens. Mr. stated that the settings used at the time were: shutter opening F.22 and focal setting, infinity. Film make and type was Eastman Zodachrome, daylight type, and speed at which pictures were taken was sixteen frames per second. Mr. further advised that in operating the camera in taking the pictures, he had "panned" the camera slowly from right to left. 2. A further check of the records of Base Operations, Great Falls Air Force Base, Great Falls, Montana, indicates that an F-94 type aircraft, #2503, and an F-94 type aircraft, #2502, landed at Great Falls Air Force Base at 1133 and 1130 hours (Mountain Standard Time) respectively on 15 August 1950. These aircraft were assigned the 449th Fighter Squadron, Ladd Air Force Base, Alaska. Mr. stated that almost immediately after taking the motion pictures, two U6AF jet type aircraft had flown across the sky east of him, heading in a southerly direction. first strobid of DOWNGRADED AT 3 YEAR INTERVALS; DECLASSIFIED AFTER 12 YEARS. DOD DIR 5200.10 UNCLASSIFIED
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