Documents / Report

U.S. Air Force Analysis of Flying Objects in the United States, 101-172

U.S. Department of War · 210 pages · text by GLM-OCR

This declassified U.S. Air Force compilation of unidentified flying object incidents 101 to 172 contains check-list reports from 1948 and 1945. Incident 101 covers the 18 February 1948 sky explosion over Norcatur, Kansas, with letters from Norman G. Markham suggesting a lunar spacecraft, Dr. Lincoln LaPaz's reply judging it a genuine meteorite fall, and witness statements. The final incident, 172, records George F. Gorman's 27 minute F-51 pursuit of a white light over Fargo on 1 October 1948, corroborated by tower controllers and Dr. Cannon.

From the source:Release of 2026-06-12 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.

  • p. 23 …Incident reported on 9 March 1948, this headquarters, per telephone call from Sgt A. M. Larsen…
  • p. 24 # HEADQUARTERS FOURTH AIR FORCE Office of the Assistant Chief of Staff Intelligence Hamilton Field, California 4AFDA…
  • p. 25 …Although there is no evidence to substantiate the following, it is the opinion of this headquarters…
  • p. 30 …No action is contemplated by this headquarters. FOR THE COMMANDING GENERAL: c/c furnished CG, AMC…
  • p. 32 …In compliance with "Intelligence Requirements - Un-identified aircraft" and letters, your headquarters, AG 452.1 A…
  • p. 33 …Above incident reported your headquarters, 2 April 1948, in radio, cite KL2143H. FOR THE COMMANDING GENERAL…
  • p. 34 …AG 452.1 A-2 1st Ind 15 April 1948 HEADQUARTERS, FAR EAST AIR FORCES, APO…
  • p. 105 …45-5, Headquarters Strategic Air Command, Andrews Air Force Base, Washington 20, D. C., dated 19…

Read from the scan by GLM-OCR; expect the odd misread word.

Incidort # 139

1. Date 9 Jul 48

2. Timo 2147

3. Location North end of Usborn, Ohio

14. Name of observer Clarence Glasebrook, 1st Lt., USAT, Hq AMC (MCIAXO-4)

5. Occupation of observer ATI Investigator

6. Address of observer Hq AAC (NCIAX-4)

7. Place of observation ground

8. Number of objects one

9. Distance of object from observer N/S

10. Timo in sight Appeared 3 times each time being 1-2 second duration

11. altitude 3000 to 4000 feet

12. Spcod between 500 & 600

13. Direction of flight west (east to west)

11. Tactics Made intermittent appearances at regulated intervals

15. Sound None

16. Sizo could not be estimated

17. Color pale yellowish white (luminous)

18. Shapo N/S

19. Odor detected N/S

20. Apparent construction N/S

21. Exhaust trails None

22. Weather conditions Clear w/quarter moon in the East-Southeast.

23. Effect on clouds N/S

24. Skotches or photographs None

25. Mannor of disappearance Suddenly at angle of approx. 70° to horizon in front of observer who was looking north

26. Romarks: Lt. Glasebrook was a reconnaissance pilot in World War II.

Cases discussed

About this file

Report, 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. 210 pages are in the text index: search them above, or from the library's search.