Documents / Official release

Office of the Secretary of Defense: 08_Go_Fast

Department of Defense. Office of the Secretary of Defense. · 2023 · 26 pages · text from the file's own layer

This All-domain Anomaly Resolution Office (AARO) case resolution from the U.S. Department of Defense is dated February 2025. It covers the "Go Fast" FLIR video, which a U.S. Navy F/A-18F recorded off Florida in January 2015. AARO found the object was at about 13,000 feet and moving between 5 and 92 mph once wind is accounted for. It assesses with high confidence that the object showed no anomalous performance and attributes the apparent high speed to motion parallax. A technical appendix explains the calculations.

UNCLASSIFIED
23
UNCLASSIFIED
black arrow is the direction of the wind at 3,692 m (the altitude of the UAP), and the colored
arrow is the direction of travel of the UAP (not the path or distance traveled of the UAP). The
lengths of the arrows correspond to the true (not intrinsic) speed of the UAP (again, not the path
of the UAP) and the windspeed. Arrows of the same length would mean the total UAP speed is
the same as that of the wind. Arrows in the same direction mean that the UAP is going in the
same direction as the wind. The more different the lengths or directions of the arrows, the less
effect the wind has on the speed of the UAP.
Figure 18: The direction of flight and speed of the UAP in the case of the F/A-18 flying into a headwind. The UAP
is going in nearly the same direction and at the same speed as the wind.
Figure 19: The direction of flight and speed of the UAP in the case of a crosswind from the left side of the F/A-18.
The UAP is going faster than the wind and in a more northerly direction.08Page determined to be Unclassified
Reviewed by Chief of Staff, AARO
IAW FY24 NDAA, Section 1841(a)(1)(C)
Date: 2/14/2025

Cases discussed

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Official release, from the nara collection. The PDF is mirrored here; the original link is above. 26 pages are in the text index: search them above, or from the library's search.