DOW-UAP-D093, Analysis of Flying Object Incidents in the United States, 1948

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Agency
DoD
Category
military
Type
PDF
Event Date
12/10/48
Released
2026-07-10
Size
12.9 MB
Original Filename
DOW-UAP-D093_Analysis-of-Flying-Object-Incidents-in-the-US_1948.pdf
Location
Virginia

This file contains a U.S. Air Force (USAF) Air Intelligence Division study, “Analysis of Flying Object Incidents in the United States,” Study No. 203, dated 12/10/1948. The analysis includes an assessment of various reported unidentified flying object (UFO) incidents and theories to account for their nature and origin. Overall, the study assesses that “it appears that some object has been seen; however, the identification of that object cannot be readily accomplished.” The study offers that two “reasonable” origins might account for the phenomena: technologies of a domestic or foreign origin. It also suggests that, if foreign, it is prudent for the United States to assume that UFO observations are attributable to scientific, military, or intelligence activities of the Soviet Union, and, in that case, to take seriously the threat such objects may pose. The file also contains contemporary UFO reports and examples of experimental “flying wing” type aircraft planforms that might account for certain commonly reported UFO characteristics. AARO Comment: This file appears to be an earlier draft version of the file contained in DOW-UAP-D094, whose content is substantively similar.

The summary above is sourced from the released file metadata as published to war.gov. The analysis sections below are original to this tracker.

Where this file fits in the PURSUE archive

This file is one of DoD's 171 files in the Trump PURSUE disclosure. Within the DoD agency block it ranks #122 of 171 by Anomalousness Index. Across the entire 334-file archive it ranks #232 of 334.

That places it in the lower-scoring band of the archive (232 of 334 by score), typical of investigative-record style files where the report is paper-based rather than instrumented.

Anomalousness Index: 56/100

Evidentiary weight that this encounter remains unexplained after conventional analysis. Not a probability of extraterrestrial origin - that number is not honestly computable from the released files and this tracker refuses to publish it.

🤖 AI-ASSISTED SCORING · methodology

The six rubric components break down for this file as follows. Each component has a weighted contribution to the final score; the per-component explanation below describes what this file's particular value on that component means in the rubric's framework.

sensor quality (eyewitness only) 30 × 0.25 = 7.5

No sensor, camera, or instrument backs this observation - it is testimony, relayed through the Department of War, and scored on the rubric's lowest sensor-quality tier for that reason. That doesn't bear on the witness's credibility (a separate axis); it reflects only that nothing beyond human perception recorded the event.

witness credibility (military personnel) 80 × 0.2 = 16.0

Reported by trained U.S. military personnel during an operational mission (12/10/48) - the rubric's second-highest witness-credibility tier, one step below astronaut testimony. This profile is shared across the AARO-submitted infrared-capture cluster that anchors the archive's densest scoring band, at 66.

corroboration (single witness instrument) 60 × 0.2 = 12.0

On corroboration, this file from the Department of War - like every single-tier file in the PURSUE archive - is a single-witness or single-instrument capture per the released metadata. The rubric doesn't infer multi-witness confirmation the summaries don't actually establish; this score reflects the honest limit of what was released, not a judgment about the underlying event.

kinematic anomaly (no kinematic data) 30 × 0.15 = 4.5

The released file contains no speed, acceleration, or vector data precise enough to score on the kinematic axis - and that's true archive-wide, not specific to this file. The rubric declines to infer kinematic anomaly from a witness's narrative estimate of how fast something moved; that itself says something about what PURSUE actually released: descriptive accounts, not flight-path telemetry.

mundane explanation available (weak mundane candidate) 70 × 0.1 = 7.0

Every file in the archive, including this one, scores this tier: a conventional explanation was considered in the released record but isn't treated as dispositive. That's a pattern in how war.gov's own summaries are written - they consistently hedge against strong conclusions either way - and the rubric takes that hedging at face value rather than resolving it for them.

official disposition (open after review) 90 × 0.1 = 9.0

This file was released as open by the Department of War after a formal review process concluded - not simply logged and left pending. That's a stronger disposition signal than 'unresolved, no review': a review actually happened, and remaining open is the Department of War's own published conclusion from it, not an absence of one.

Bottom line on the score: the Anomalousness Index of 56/100 reflects evidentiary weight that this specific file's encounter remains structurally unexplained by the rubric's six axes - it is not a claim that the underlying event involved anything non-conventional, and it is not comparable across rubrics that use different weights. For the full per-axis weights and the rubric JSON, see /methodology.

Related files in DoD

Other PURSUE files in the same category, ranked by Anomalousness Index.

DoD · VIDEO SCORE 68

DOW-UAP-PR024, Unresolved UAP Report, Middle East, 2023

DoD · VIDEO SCORE 68

DOW-UAP-PR072, "ADMINISTRATIVE REVISION: IIR 1777 J0032 22 Kazakhstan - UAP in the vicinit…

DoD · VIDEO SCORE 68

DOW-UAP-PR106, Unresolved UAP Report, Eastern United States, 2020

DoD · VIDEO SCORE 68

DOW-UAP-PR108, Unresolved UAP Report, Western United States, 2020

DoD · VIDEO SCORE 68

DOW-UAP-PR109, Unresolved UAP Report, Eastern United States, 2015

DoD · VIDEO SCORE 68

DOW-UAP-PR110, Unresolved UAP Report, Eastern United States, 2020

BROWSE ALL 334 FILES →

Verification

SHA-256:

6a94a4548eac7933948fad4706e161c6a251bf5eaa9d05d70981b40cb1e80745

This hash is the SHA-256 of the file body war.gov served on the verification date above. War.gov has re-processed some file bodies since first release (re-compression + OCR, no content removed - see /changes); we re-verify and record the change rather than silently serve a stale hash. How to check this yourself →

Source: https://www.war.gov/medialink/ufo/071026/release_04/documents/DOW-UAP-D093_Analysis-of-Flying-Object-Incidents-in-the-US_1948.pdf

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