Documents / Official release
This undated Central Intelligence Agency document is a set of briefing notes for Walter N. Elder about an unidentified object flying near Puerto Rico in November. It says the destroyer U.S.S. Gyatt tracked a radar contact at more than 3,800 knots on 19 November. The object paced an F-8 Crusader and then climbed away. The pilot described a delta shaped object about the size of a jet fighter. The notes say ONI had no further information.
From the source:Release of 2026-08-07 Incident: Undated, Caribbean Sea. This document contains briefing material prepared for Mr. Walter N. Elder, Executive Assistant to the Director of the Central Intelligence Agency (CIA), regarding a November 19, 1964, incident allegedly involving unidentified aircraft in the vicinity of Puerto Rico. The previous entry in this collection, CIA-UAP-D022, contains CIA memoranda on the same subject matter. The briefing includes additional details regarding that incident, including a characterization of the meteorological conditions and sensing capabilities of nearby U.S. military collection systems. The briefing states that a radar system aboard USS Gyatt, a guided missile destroyer operating in the vicinity, detected a contact tracking more than 3,800 knots (approximately 4,373 mph) over a period of 21 minutes. The briefing contains visual estimates regarding the phenomenon’s apparent capabilities from the pilot of an F-8 Crusader who was present during the incident.
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BRIEFING NOTES FOR MR. WALTER N. ELDER
UNIDENTIFIED OBJECT FLYING IN THE VICINITY OF PUERTO RICO ON 16, 17, 18, 19, AND 24 NOVEMBER
1. On 19 November, the U.S.S. Gyatt picked up on its radar a contact tracking in excess of 3,800 knots. At this time the Gyatt was working an F-8 (Crusader) Fighter Aircraft at 35,000 feet when a high-altitude, high-speed object was detected. The object slowed and steadied down, maintaining a position to the fighter at nine o'clock, about nine miles from the Crusader. The Crusader pilot selected afterburner and attempted to close on the UFO. At about five miles, the object accelerated at extremely high speed in a $ 2 0^{\circ} $ climb and pulled away from the fighter rapidly. The object appeared on Gyatt's radar for twenty-one minutes. On returning to Roosevelt Road's Naval Air Station, object again closed on the fighter from astern to four miles.
2. On 24 November, the Atlantic Fleet Weapons Range again held a high-speed, high-altitude target which simultaneously pulled away rapidly from another Crusader aircraft which at that time was flying at Mach .99, 45,000 feet.
3. The Crusader pilot on the night of the 19th observed the UFO in full moonlight, weather was good and visibility was good. UFO was identified as a Delta shaped object about the size of a jet fighter. Not linked to a story yet.
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 2 pages are in the text index: search them above, or from the library's search.