DOW-UAP-D097 - Project Sign Progress Report (1948)
DOW-UAP-D097 - Project Sign Progress Report (1948) is a declassified Archival Record from Department of War. The record is dated 1948, was released in Release 04 on 2026-07-10 under the PURSUE initiative, and contains 1 file.
Citation-Ready Summary
DOW-UAP-D097 - Project Sign Progress Report (1948) is a declassified Archival Record from Department of War. The record is dated 1948, was released in Release 04 on 2026-07-10 under the PURSUE initiative, and contains 1 file.
A 1948 progress report from Project Sign, the U.S. Air Force's first official UFO investigation, established at Wright-Patterson AFB in the wake of the 1947 sighting wave. Sign's internal reporting is foundational source material: it predates Grudge and Blue Book and records the earliest official attempts to explain the phenomenon.
Key Facts
Progress report from Project Sign, the first official U.S. Air Force UFO investigation.
Dates from 1948, the founding year of official U.S. government UFO study.
Predecessor documentation to Projects Grudge and Blue Book.
Released as part of PURSUE Release 04 on July 10, 2026.
Files in This Record
Related Records
DOW-UAP-D089 - Range Fouler Debrief - Eastern United States (2020)
Range Fouler Debrief / 2020
DOWDOW-UAP-D090 - Range Fouler Debrief - Eastern United States (2019)
Range Fouler Debrief / 2019
DOWDOW-UAP-D091 - Range Fouler Debrief - Atlantic Ocean (2020)
Range Fouler Debrief / 2020
DOWDOW-UAP-D092 - Air Force Committee to Review Project Blue Book (1966-1967)
Archival Record / 1966
DOWDOD_111830004 - DOD UAP Video (Release 04)
Video Evidence / 2026
DOWDOD_111830007 - DOD UAP Video (Release 04)
Video Evidence / 2026