Project Palladium

Briefing

Project Palladium was a Cold War electronic-warfare programme built inside the CIA’s science-and-technology directorate, run from around 1960 alongside the U-2 and A-12/Oxcart efforts [1]. It intercepted an enemy radar’s own signal, passed it through a variable delay line, and re-transmitted it to inject fully controllable false radar targets — “ghost aircraft” of any size, speed and flight path — into Soviet and Soviet-client air-defence radars [1]. Its existence is documented in program founder S. Eugene “Gene” Poteat’s own firsthand published accounts and in a declassified CIA Studies in Intelligence article [1][4]. The frequently repeated claim that Palladium “manufactured UFOs” is a secondary interpretation drawn from later outlets, not a statement in Poteat’s accounts, which describe ghost aircraft throughout [2].

Sequence of events

Around 1960 — origin

• As a new engineer in the CIA’s Office of Scientific Intelligence, cleared into the Oxcart (A-12) programme, Poteat and a team set out to measure Soviet radar power, coverage and operator skill — needing to know how stealthy the yet-to-fly Oxcart had to be [1].
• To test operators directly, the team built a device that received an enemy radar’s signal, fed it into a delay line, and re-transmitted it; by smoothly varying the delay length they simulated a false target’s range and speed and, knowing the radar’s power and coverage, could fly a ghost aircraft along any path. The project was dubbed Palladium [1].

The Cuba test — approximately the early 1960s

• Operations were run covertly from ground bases, naval ships and submarines; a typical mission combined a CIA ghost-aircraft transmitter, an NSA team monitoring the enemy’s radar reports and radio chatter, and a support team [1].
• A US Navy destroyer lay just off the Cuban coast near Havana — out of sight of Soviet radar, with the Palladium antenna “just breaking the horizon” — and the false target was made to look like a US fighter out of Key West about to overfly Cuba [1].
• Simultaneously a US Navy submarine released a timed series of metallic, balloon-borne spheres of different sizes: the aim was to get the early-warning radar to track the electronic aircraft while the NSA team recorded which sphere sizes the radar could and could not detect — directly measuring the smallest radar cross-section the Soviets could see [1].
• Cuban fighters were scrambled to intercept the “intruder”; Poteat wrote the team “had no trouble in manipulating the Palladium system controls to keep our ghost aircraft just ahead of the pursuing Cuban fighters” [1][3].
• According to the Las Vegas Review-Journal’s account of Poteat’s 1999 paper, the Cuban pilot radioed that he had the intruder in sight and was preparing to fire — at which point a CIA engineer shut the system down and the phantom vanished [3].

Documentary record

The primary source verified directly is Poteat’s own published narrative, “Engineering in the CIA: ELINT, Stealth, and Beginnings of Information Warfare,” in The BENT of Tau Beta Pi, Fall 1999, which describes the Cuba test, the delay-line technique and the submarine spheres [1]. Poteat states that his own account rests on his article “Stealth, ELINT, 1960–75: Some Beginnings of Information Warfare,” Studies in Intelligence, Vol. 42, No. 1 (1998), noting the volume was classified SECRET and that the referenced article had been “recently declassified” [1]. The underlying official CIA record — “Stealth, Countermeasures, and ELINT, 1960–1975” — is hosted in the CIA Reading Room (DOC_0006122549); its existence and title are confirmed, but its full text could not be retrieved for this file (the server returned HTTP 403), so no fact here is cited to its contents [4].

The War Zone’s profile reports that Poteat “founded and directed PALLADIUM for 15 years” within the Directorate of Science and Technology [2]. The institutional actors named in Poteat’s account are the CIA (the ghost-aircraft system), the NSA (signals monitoring) and the US Navy (destroyer and submarine platforms) [1].

Open questions

1. The verified sources give no precise date for the Cuba test; Poteat places it in the early-1960s Oxcart window but does not date it [1].
2. The number, locations and targets of Palladium operations beyond Cuba are not specified in the fetched sources [1].
3. The full declassified Studies in Intelligence text, which may contain further detail, was not directly accessible for verification [4].
4. Whether any Palladium-style operation was ever conducted against US or allied observers — as opposed to Soviet or Cuban radar — is not addressed in the primary account [1].
5. Separately, Poteat recounts being asked during the August 1964 Gulf of Tonkin incident whether the destroyer Maddox’s radar had been “spoofed electronically, the way you spoofed their radar.” He does not claim Palladium was involved; he raises the possibility of radar or atmospheric artefacts, writes that the ship’s log gave few clues, and leaves the question open [1].

Status

This file is CONFIDENTIAL — admitted on the strength of the program founder’s own firsthand published account and the confirmed existence of the underlying CIA Studies in Intelligence record [1][4]. The archive draws a firm line between what is documented and what is inferred. Poteat’s accounts describe controllable “ghost aircraft” and plain metallic spheres used as radar-cross-section calibration references; they do not describe “flying-saucer-shaped” decoys, and no primary source supports the saucer-shaping claim [1]. The link to modern US Navy Tic Tac encounters is external interpretation: Area 51 and Oxcart-era radar veteran T. D. Barnes told The War Zone, of recent Navy sightings, “I don’t have the answers to what the Navy aviators saw, but in my mind, I’m thinking, we are doing it again” — a stated opinion offered without evidence, and one Poteat, per the same report, declined to endorse without seeing more of the Navy’s data [2]. Treat the UFO framing accordingly. Lower-confidence paraphrases of the system’s flexibility — that it could make a target “as big as a B-52 bomber or as small as a bird, and anything in between” — are Poteat’s own words to the Review-Journal and are logged as reported, not documented [3].

References

1. Poteat, S. Eugene. “Engineering in the CIA: ELINT, Stealth, and Beginnings of Information Warfare,” The BENT of Tau Beta Pi, Fall 1999 — the primary firsthand narrative verified directly for this file (cited under fair use).
2. Rogoway, Tyler. “Area 51 Veteran And CIA Electronic Warfare Pioneer Weigh In On Navy UFO Encounters,” The War Zone (TWZ).
3. “Quiet arms race continues, retired CIA officer says,” Las Vegas Review-Journal — account of Poteat’s 1999 paper.
4. Poteat, S. Eugene. “Stealth, Countermeasures, and ELINT, 1960–1975,” CIA Studies in Intelligence, CIA Reading Room DOC_0006122549 — underlying official CIA record; existence and title confirmed, full text not retrieved (HTTP 403). US Government work / public domain.