Within Threat Myths
How Testing Made the Mi G 21 Beatable
Have Doughnut broke the MiG-21 into practical strengths and weaknesses pilots could train against.
On this page
- Why flying the real aircraft mattered
- Visibility, buffeting and acceleration limits
- How measured weaknesses became tactical advice
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Introduction
Before the United States obtained and flew a real MiG-21 under the highly classified Have Doughnut programme, the aircraft had acquired an intimidating reputation. American pilots fighting over Vietnam knew the Soviet-designed fighter was fast, small and difficult to engage, but many of its actual performance limits remained uncertain. The value of reverse engineering was not simply discovering technical specifications. It was transforming a feared adversary into a measurable problem. By flying the aircraft, testing it against American fighters and documenting its weaknesses, analysts converted vague concern into practical combat guidance. The result was a shift from “the MiG-21 is dangerous” to “the MiG-21 is dangerous under specific conditions and vulnerable under others”.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
Why Flying the Real Aircraft Mattered
Have Doughnut began after Israel provided the United States with a flyable MiG-21 acquired through the defection of Iraqi pilot Munir Redfa in 1966. At a secret test site in Nevada, American and Navy pilots flew the aircraft extensively and compared it against frontline US fighters including the F-4 Phantom and F-105 Thunderchief. The programme’s stated purpose was not merely technical evaluation but also the optimisation of tactics and development of new methods for defeating the MiG-21 in combat.[gwu.edu]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
This distinction mattered. Intelligence estimates had already identified the MiG-21 as a significant threat, but estimates alone could not reveal how a pilot actually experienced the aircraft. Test pilots could now observe cockpit visibility, engine response, handling qualities and energy loss during manoeuvring. Many of these characteristics were difficult or impossible to infer from photographs, radar tracks or combat reports alone.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
The programme therefore functioned as a practical correction to threat inflation. The MiG-21 remained a capable fighter, but its strengths and weaknesses became measurable rather than speculative.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
Visibility, Buffeting and Acceleration Limits
One of the most important discoveries involved pilot visibility. The MiG-21 suffered from poor forward and rearward sight lines. Structural elements, armour glass and canopy design restricted the pilot’s view, while the rear hemisphere contained a substantial blind cone. Test evaluators concluded that these limitations could be deliberately exploited during air combat manoeuvring.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
Testing also revealed speed-related limitations that were not obvious from the aircraft’s impressive top-speed figures. Below roughly 15,000 feet, severe buffeting appeared as the aircraft approached its practical transonic limits. Evaluators described the aircraft as becoming effectively unusable as a weapons platform once these conditions developed. High control forces further limited rapid pitch manoeuvres at higher speeds, reducing pilot responsiveness during aggressive combat manoeuvring.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
Engine performance created another exploitable weakness. The MiG-21’s turbojet responded slowly to throttle changes. Acceleration from idle to military power required approximately fourteen seconds, making formation flying more difficult and reducing the pilot’s ability to recover energy quickly during a dynamic engagement. American pilots discovered that this delay could be exploited during manoeuvring combat and during attempts to disengage.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
The tests additionally found that afterburner operation could create visible puffs of unburned fuel, offering visual cues that could reveal the aircraft’s location. Such details seem minor, but in visual air combat they contributed to a more precise understanding of how the aircraft could be detected and tracked.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
How Measured Weaknesses Became Tactical Advice
The most significant outcome of Have Doughnut was not the technical report itself but the translation of engineering observations into pilot guidance. Rather than telling crews that the MiG-21 was generally dangerous, analysts identified specific conditions under which American aircraft could gain advantages.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
For F-4 Phantom crews, evaluators concluded that engagements below 15,000 feet could be controlled by exploiting the MiG-21’s airspeed limitations and rapid energy loss during high-G manoeuvres. Pilots were advised to attack from directions that exploited the MiG’s visibility deficiencies and to fight in the vertical plane rather than entering prolonged turning contests.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
The testing also clarified an important nuance about the MiG-21’s manoeuvrability. The aircraft possessed excellent instantaneous turning performance and could achieve a tighter turn radius than many American fighters. However, this came at the cost of rapid airspeed bleed-off. In practical terms, the MiG could achieve an impressive initial turn, but sustaining that advantage was more difficult. Once this trade-off was understood, pilots could avoid fighting the battle the MiG wanted and instead force engagements that favoured American acceleration and energy retention.[f-106deltadart.com]f-106deltadart.comProject Have Doughnut by John LoweryFishbed's test and evaluation project was code-named Have Doughnut. Because the MiG-21 was then doing battle in Vietnam, US…Read more…
For F-105 pilots, the guidance was even more explicit. Analysts recommended offensive action primarily when a rear-aspect advantage already existed. Pilots were instructed to avoid extended dogfights, use mutual support, exploit the blind cone and rely on hit-and-run attacks rather than attempting to match the MiG in sustained manoeuvring combat.[Roadrunners Internationale]roadrunnersinternationale.comThis included…
From Aircraft Evaluation to Combat Learning
The broader significance of Have Doughnut was that it demonstrated how foreign materiel exploitation could change operational behaviour. Before the aircraft was examined, the MiG-21 existed partly as a reputation. After testing, it became a system with known constraints, known strengths and known vulnerabilities. Analysts could identify where the aircraft excelled, where it struggled and how American pilots should respond.[National Security Archive]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
This transformation from fear to tactics is one of the clearest examples of reverse engineering influencing military effectiveness. The programme did not prove that the MiG-21 was overrated; in several respects it confirmed that the fighter was formidable. What changed was the quality of understanding. Combat crews no longer had to rely primarily on assumptions or anecdotes. They could train against documented characteristics and adopt tactics derived from direct experience with the actual aircraft.[gwu.edu]nsarchive2.gwu.eduNational Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U…
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Endnotes
1.
Source: f-106deltadart.com
Link:https://www.f-106deltadart.com/pdf-files/Project-Have-Doughnut-Tactical-Project-DIA-Report.pdf
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Have Doughnut(S/KFD) The purpose of this report is to present the results of a tactical evaluation of a FISHBED E (MIG-21F-13) aircraft...
2.
Source: f-106deltadart.com
Title: Project Have Doughnut by John Lowery
Link:https://f-106deltadart.com/pdf-files/Project-Have-Doughnut-by-John-Lowery.pdf
Source snippet
Fishbed's test and evaluation project was code-named Have Doughnut. Because the MiG-21 was then doing battle in Vietnam, US...Read more...
3.
Source: youtube.com
Link:https://www.youtube.com/watch?v=wBLL071Yg8Q
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HAVE DOUGHNUT...
4.
Source: youtube.com
Title: HAVE DOUGHNUT
Link:https://www.youtube.com/watch?v=pG6n6aKC1bM
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The Secret Program That Hid an Even More Secret Program...
5.
Source: nsarchive2.gwu.edu
Link:https://nsarchive2.gwu.edu/NSAEBB/NSAEBB443/docs/area51_48.PDF
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National Security ArchiveHAVE DOUGHNUT TACTICAL EVALUATIONMarch 13, 2015 — Evaluate the effectiveness of existing tactical maneuvers by U...
Published: March 13, 2015
6.
Source: roadrunnersinternationale.com
Link:https://www.roadrunnersinternationale.com/migs_area51.html
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This included...
7.
Source: Wikipedia
Title: Have Doughnut
Link:https://en.wikipedia.org/wiki/Have_Doughnut
Source snippet
Have DoughnutHave Doughnut was the name of a Defense Intelligence Agency project whose purpose was to evaluate and exploit a MiG-21 "F...
Additional References
8.
Source: reddit.com
Link:https://www.reddit.com/r/hoggit/comments/dqwiwp/have_doughnut_usaf_veteran_gives_combat/
Source snippet
"HAVE DOUGHNUT" --- USAF veteran gives combat..."HAVE DOUGHNUT" --- USAF veteran gives combat evaluation of MiG-21 performance vs Vietna...
9.
Source: scribd.com
Link:https://www.scribd.com/document/75085757/Have-Doughnut-USAF-MiG-21-Exploitation
Source snippet
Tactical Evaluation of MIG-21 Aircraft | PDFThis report oonoerns a project to obtain such information designated ProjeotRave Doughnut. (S...
10.
Source: raf.mod.uk
Link:https://www.raf.mod.uk/what-we-do/centre-for-air-and-space-power-studies/aspr/apr-vol6-iss4-4-pdf/
Source snippet
Like the 104 F-4 Phantoms downed in. Vietnam against 57 MiGs in direct air-to-air.Read more...
11.
Source: youtube.com
Title: The U.S. Mocked the Mi G-21 — Until One Secret Flight Changed Everything
Link:https://www.youtube.com/watch?v=4xcgXmWZme8
Source snippet
[Have Doughnut MiG]({{ 'mi-g-21-tests/' | relative_url }}) 21 testing tactical evaluation American Pilot Tested Captured Soviet MiG-21 – What He Discovered Changed Everything Tal...
12.
Source: reddit.com
Link:https://www.reddit.com/r/hoggit/comments/2iekf9/for_those_that_are_interested_this_is_the_report/
Source snippet
purpose was to evaluate and exploit a MiG-21 "Fishbed-E" that the United States Air...
13.
Source: upload.wikimedia.org
Title: Project have doughnut area51 49
Link:https://upload.wikimedia.org/wikipedia/commons/8/8f/Project_have_doughnut_area51_49.pdf
Source snippet
OF THE MIG-21□The aircraft had approximately 135 hours on it - the engine had 165 hours... □ Visibility. □ Engine Response. ☐ Low Altitu...
14.
Source: youtube.com
Link:https://www.youtube.com/watch?v=HgUvQofByyA
Source snippet
Soviet Designers Were Horrified When US Secretly Flew Their Captured MiG's at Area 51...
15.
Source: youtube.com
Title: American Mi G-21 and Mi G-17 Flying Over Area 51
Link:https://www.youtube.com/watch?v=ilq6xGj1L20
Source snippet
American MiG-21 and MiG-17 Flying Over Area 51 - The Story...This is the story of Have Doughnut and Have Drill - Two little known operat...
16.
Source: secretprojects.co.uk
Link:https://www.secretprojects.co.uk/threads/unexploited-mig-21s-agility-phantom-vs-mig-21.10013/
Source snippet
unexploited MiG-21's agility: Phantom vs MiG-21The main disadvantages of MiG-21 are poor cockpit downward visibility, a proportionally sm...
17.
Source: youtube.com
Title: The Secret Program That Hid an Even More Secret Program
Link:https://www.youtube.com/watch?v=XeBNyPsysiI
Source snippet
The U.S. Mocked the MiG-21 — Until One Secret Flight Changed Everything...
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