Documents / Official release
This U.S. Department of War file, undated, holds checklist summaries of incidents 1 to 100 of unidentified flying objects reported in 1947 and early 1948. The first entries cover sightings of silver discs and spheres by officers and staff at Muroc Army Air Field on 7 and 8 July 1947. Next come the Portland, Oregon police reports of 4 July, a United Air Lines crew near Emmett, Idaho, and a set of 30 December flame and explosion reports from California and Nevada. The file ends with two Finnish sightings.
From the source:Release of 2026-05-08 Incident: N/A, N/A. NARA Record Group 38, catalogue id 143685. Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.
“Anderson”4 pages
Read from the scan by GLM-OCR; expect the odd misread word.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date 8 July 1947 2. Time 11:50 Incident # 4. 3. Location Area # 3, Rogers Dry Lake, California. 4. Name of observer Captain John Paul Strapp 5. Occupation of observer Flight Test 6. Address of observer Muroc Army Air Field, Muroc, California. 7. Place of observation Observation Truck, Area #3, Rodgers Dry Lake, Calif. 8. Number of objects One (1) 9. Distance of object from observer 20,000 feet 11. Altitude lower than 20,000 12. Speed slower than the maximum velocity 50-60 aircraft 13. Direction of flight Slightly north of due west against prevailing wind 14. Tactics rotation or oscillation of slow type (suggested by 2 fins or nobs on the upper surface which crossed each other at intervals not stated 16. Size About 50 Color silvery Shape resembled a parachute canopy at first then assumed ovular shape Odor detected not stated Apparent construction It presented a distinct ovular outline, with two (2) projections on the upper surface which might have been thick fins or nobs. These crossed each other at intervals, suggesting either rotation or oscillation Exhaust trails intervals, suggesting either rotation or oscillation of slow type. Weather conditions not stated 23. Effect on clouds not stated Sketches or photographs none 25. Manner of disappearance Dropped to a level such that comes into line of vision of the mountain tops. 26. Romarks: (over) CONFIDENTIAL
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 209 pages are in the text index: search them above, or from the library's search.