AGARDograph 313 and gyroscopic drives

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Contents 6
AGARDograph 313 and gyroscopic drives
Illustration of official papers and files
Illustration: official papers and files. An artist's impression drawn for this site, not a photograph of the event.
DateMarch 1990
TopicsPropulsion & physics (topic)
PeopleNick Cook
TestimonyShellenberger testimony, p. 107
Year1990 in UFO history
Timeline1990 on the UAP Timeline
Sources6

The Anatomy of the Gyroscope, Part III (AGARDograph 313) is a 299-page technical survey published in March 1990 by NATO's Advisory Group for Aerospace Research and Development (AGARD). Among many topics, it briefly discusses claimed "gyroscopic inertial drives", devices that some inventors have said could produce thrust without propellant.[1]

The series

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The three-part survey, the first two parts of which appeared in 1988, was edited by John L. Hollington and is generally attributed to engineer Frank W. Cousins. Part III covers the history of gyroscopic principles — from the balancing organs of flies to Johann Bohnenberger's 1817 apparatus, which it credits ahead of Léon Foucault — and types of gyroscope, including vibrating and laser interferometric designs, as well as applications in gearing, optical stabilisation, navigation and tests of general relativity.[1]

Inertial drives

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The survey's discussion of "inertial drives" deals with devices claimed to produce thrust from spinning or oscillating masses. British engineer Eric Laithwaite had publicly demonstrated gyroscope effects in the 1970s that he thought might lead to new propulsion, and inventors patented several such devices. The report discusses them as claims rather than endorsing them.[1][2]

Assessment

Cover of the October 1920 issue of Popular Science magazine, painted by American illustrator Norman Rockwell . It depicts an inventor working on a…
Cover of the October 1920 issue of Popular Science magazine, painted by American illustrator Norman Rockwell . It depicts an inventor working on a… Photo: Norman Rockwell · Public domain · via Wikimedia Commons

Mainstream physics holds that such reactionless drives cannot work, because they would violate conservation of momentum, and no working device has ever been demonstrated. Writer Nick Cook cited the report in The Hunt for Zero Point as evidence of official curiosity about unconventional propulsion.[2][3]

People and topics

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  • Nick Cook — Jane's Defence Weekly aviation editor and author of The Hunt for Zero Point.
  • The Hunt for Zero Point — Nick Cook's 2001 book on secret anti-gravity research.

On the Timeline

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See every 1990 event on the UAP Timeline →

References

This page was last edited on 29 October 2026. Articles are written in our own words from the sources listed under References; disputed claims are attributed to the people who made them.

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