Archive case record

CIA-UAP-D023, Briefing Notes for Mr. Walter Elder

Location: Caribbean Sea
Source: uap_archive
Record updated: 2026-08-19

Record summary

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.

Published source text

Read the available text below. Archive transcriptions may contain OCR errors; later context is labelled separately. A recorded claim is not a finding that it happened.

Source page 1

Source text · mention only

BlUEFING N0Tl£S FOR MR. WALT t:rNl.OJi;NTlFIED OBJECT FL"nNQ ';ffl~ VlCINlTY OF PUgR TO RlCO ON 16. 11. 1a, 1,. AND z4 Nev ·, 'BR • • l. On 19 Novemh", th• w. & &yatt pit:ked up on itt radai- a ftghter rapidly. The object appear on Clyatt'• radar for tvttnty ..one again closed on the fighter £:rom ast . n to few: miles. 2. On 24 November. the At nth: Fleet W fapona Rang.• again held a high .. speed, high~altitude tar t which eimultaneoutl:y pulUtd.•, away rapidly from anethe:r CJ."usader aircraft which at that time waw flying at Mach . 99. 45, 000 feet. 3. The Cru.eader pilot Qn th. ntght of the 19th oba.erved the UFO in fiul moonlight, weather was good vbl'ibility WBiJt good. UFO we.a tdtntiiled as a Delta •haptld objJJct a out th♦ 11,se of a Jet £1'1,hte:r. .nl1"1F>..,ir ti/ i~tf;t i ir- .,... ! i

Source page 2

Source text · mention only

4. The TJ. S. s, Gya.tt .corlfir, pictures of radar scope prll!l$itation. be in excess of Mach 3. 5. ONI has no furth•r illfor hav~ requested that they notU:y us e>f 6. For your information, t to-Ab: Mlse,ile . .Oea.t;roy•r -i,uipptd .lid t~t tra.c::kia with motion Thie pilot •.n1ttl'l.'u1t•d spttd to atiQp, oa tbbi subJ.-ct aad we imtla:r incident• i:n tht• future. U. $. 8. Gyatt ia a Navy Sui-faC!e.. th the la.test and most acc.urate z

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