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DOW-UAP-D097 — Project Sign Progress Report, 1948
- File
- DOW-UAP-D097
- Agency
- Department of War
- Incident date
- 1948
- Location
- Various
- Released in
- Release 04 (2026-07-10)
- File type
Topics: Flying discs, 1947–1950s
This file contains an initial report from the Air Materiel Command regarding Project Sign. Project Sign was a 1948-1949 U.S. Air Force program to investigate the nature and origin of unidentified flying objects (UFO). The report details 100 UFO sightings from 1947-1948. The file also contains an article excerpted from “The Aeroplane,” an aviation-focused periodical magazine published between 1911 and 1968, titled “The Biology of the Flying Saucer.”
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TL;DR
April 1948: when the Air Force’s “progress” was still in the draft stage.
- DOW-UAP-D097 PDF, Department of War, April 1948, various locations
- Reports 100 UFO sightings 1947‑1948; hover, rapid motion, size changes
- Data insufficient for positive identification
Previous: DOW-UAP-D096 — Correspondence Relating to Project Blue Book, 1955 · Next: DOW-UAP-D098 — Film Analysis of Unidentified Objects, 1953
Same topic: title & summary match
Same location: Various
- DOW-UAP-D105 — U.S. Air Force Flying Discs File, 1952
- DOW-UAP-D092 — Department of the Air Force Committee to Review Project Bluebook, 1966-1967
- DOW-UAP-D095 — Joint U.S.-Canadian Aviation Projects and UFO Sighting Reports, 1954-1955
- DOW-UAP-D096 — Correspondence Relating to Project Blue Book, 1955
- FBI-UAP-D014 — Correspondence Relating to UFO Sightings, 1967, 1974
Same period: 1948
Same release: Release 04
- DOE-UAP-D004 — Los Alamos Conference on Aerial Phenomena, 1949
- DOW-UAP-D094 — Analysis of Flying Object Incidents in the United States, 1949
- NASA-UAP-D030 — STS-80 Unidentified Object Image 1, 1996
- NASA-UAP-D031 — STS-80 Unidentified Object Image 2, 1996
- NASA-UAP-D032 — STS-80 Unidentified Object Image 3, 1996
- DOW-UAP-PR104 — Unresolved UAP Report, Yellow Sea, 2025