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Declassified
Releases / Release 04 / DOW-UAP-D097
Department of War

Project Sign Progress Report, 1948

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.”

Catalogue description by the publishing agency.

Record
DOW-UAP-D097
Release
Release 04 · Jul 10, 2026
Incident
1948 · Various
Pages
45
Verdict
not judged yet
Source
war.gov ↗
Page by page

The pages and what the AI read on them

The transcription is the page reader's: black bars mark what the government redacted; hatched tags mark personal data we removed.

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