Sandy KIDD
Gyroscopic Propulsion
Anti-Gravity Machine
Wheels Within Wheels

"Scientists will simply have to accept that I am right and physics is wrong," according to Scots engineer Sandy Kidd. "Only then can we open up the universe and take man to mars in just a few hours longer than the present flying time between Sydney and London."

These outlandish -- even unearthly -- claims would normally be dismissed out of hand; but not when they come from Sandy Kidd. His invention, the Kidd Machine, shouldn't work -- but it does, repeatedly.

Sandy Kidd set out to create an anti-gravity machine in 1980, a device which could one day power flying saucers with energy derived from high-speed gyroscopes. While working as a planning engineer with a North Sea oil company for four years, he spent nearly every spare minute in a makeshift workshop in his garden shed in Dundee, Scotland. Then, at Christmas in 1984, his machine generated its first vertical thrust. "Not much, but it was there and I was over the moon," he recalls. A few weeks later the device was demonstrated at Imperial College, London, for Professor Eric Laithwaite, a pioneering expert on gyroscopes.

After watching the three kilogram, 45-centimetre unit with a gyroscope at each end of a crossarm rise from the test-bench against a counter-weight, he described Kidd as "ingenious'.

"What we have here is a potential space drive," Laithwaite said. "Properly developed, this would take you to the outer universe on a spoonful of uranium."

Two years later, research physicist Dr Bill Ferrier of Dundee university examined the device on campus. "Its potential is mind-boggling," Ferrier announced. After Sandy Kidd moved to Australia a second prototype was tested in Melbourne for three days under the supervision of specialist engineers. Placed in a sealed wooden box, it was suspended from a cord attached to an overhead beam fitted with sensitive measuring instruments. Powered by a model aircraft engine, the entire device lost weight as the vertical thrust overcame the 'force' of gravity.

"It created enough thrust to float a small orange through the middle of a room," said Kidd. "People in the laboratory were clearly shaken."

The Kidd Machine produces lift without reacting on air, water or a solid surface and therefore appears to be defying Newton's Third Law of Motion that states that every action must have an equal and opposite reaction.

"What Kidd has achieved will certainly shake the scientific world to the core when they realize the implications of the results," announced prematurely optimistic astrophysicist Dr Harold Aspden of Southampton University in the 1980s. "It should now be possible to build a machine big enough to lift itself off the ground with a full payload."

Mr Kidd was working under contract to BWN, an Australian-based company. BWN refused to divulge laboratory details despite wide mainstream media disclosure, including demonstrations on a number of TV programs. "Full public disclosure would simply encourage others to build similar devices and perhaps overtake us," said Noel Carrol of BWN. "Industrial espionage is another risk we face." Work to increase lift and design a commercial prototype "may take several years but we'll get there," said Kidd in 1988.

Sandy Kidd and Force Precessed Gyroscopes

A simplified description of force precessed gyroscopes

In the following set of diagrams red arrows are used to show the force applied to the structure. Provided the gyroscopes themselves are rotating in the correct direction (not shown on diagram) the gyroscopes will produce a counter-acting force known as precession, as shown in the diagram as two blue arrows.

Normally this would produce a continuous torque as the whole device is revolving which would cancel it self out in the form of stress in the structure of the machine. However in Sandy's patent the gyroscopes are pushed in/out using cams resulting in the following motion (represented by the eight diagrams). As far as I can understand a number of up-ward pulses are produced due to the two gyroscopes (in this particular case, more can be used) exerting a force towards the centre of the structure (axle). This in effect is a vastly simplified version of what is going on. A number of independent tests have shown results for and against the machine.

While working in the Air Force, Dundee based engineer Sandy Kidd was one day taking a gyroscope out of an aircraft. Not realising that the gyroscope was still running, he came down the steps of the aircraft and turned at the base of the steps. At this point the gyroscope almost threw him across the floor. This stirred his interest in gyroscopes, Sandy spent many years and tens of thousands of pounds in his garden-shed/garage developing and working on gyroscopic devices. Trying to get a number of gyroscopes to react against one another to produce lift. In time he developed a device that he claimed could achieve this. Building other models using that principle and discussing his ideas with others, he came to conclusions of how it worked. Dundee University was interested in the invention and for a time worked with him, but long term could not supply the funds or enthusiasm that was needed. He tried obtaining funds to develop his invention in Scotland, but had to resort to looking for funds elsewhere. An Australia corporation BWM took the task on to develop a gyroscopic propulsion system but unfortunately the company went bust. British Aerospace has also been involved in the research with him but dropped the funding.

A UK/European patent for his invention was applied for (I have a copy of the application). I did try to find a granted patent for Europe but without success. I ended up phoning the European patent office to find out if one was granted. I was told that it would have been, but it was withdrawn at the last moment (funding dropped). I did however find a granted US patent (5024112). The fees for the patent have stopped being paid for some years ago. Which means anyone is free to copy, sell etc his invention (At least in the US/Europe).

Sandy is still working on various devices based around gyroscopes and hopefully we will be seeing more inventive designs from him in the near future.

Dr Bill Ferrier of Dundee University talking about Sandy Kidd's machine in 1986:

"..............There is no doubt that the machine does produce vertical lift. Several modifications were then made at my suggestions in order to disprove other possibilities of lift, particularly aerodynamic effects.

I am fully satisfied that this device needs further research and development. I have expressed myself willing to help Mr Kidd whose engineering ability is beyond question, and for whom I now have the greatest respect. I am currently trying to interest the university in housing the development and also in finding 'enterprise' money to fund the next stage.

I do not as yet understand why this device works. But it does work! The importance of this is probably obvious to the reader but, if it is not, let me just say that the technological possibilities of such a device are enormous. Its commercial exploitation must be worth millions."

USP 5024112

Gyroscopic apparatus  

Publication date:     1991-06-18
Applicant(s):     CARROLL NOEL [AU] + (CARROLL, NOEL)
Classification:      - international:     F03G3/00; F03G3/08; F03H99/00; G01C19/02; F03G3/00; F03H99/00; G01C19/00; (IPC1-7): F16H27/04; G01C19/06 ;- European:     F03G3/08; G01C19/02

Also published as: WO8804364 // EP0335895 // EP0335895 // BR8707912 // AU595089

A gyroscopic apparatus (100), having application as a prime mover, comprises a pair of discs (102) disposed opposite one another with arms (104) rotatably supporting the discs (102) connected at a pivot point, the pivot axis thereof lying in a plane midway between the discs (102). A drive arrangement (124, 126, 180) operates to spin the discs (102) in opposite directions while simultaneously rotating the whole assembly of discs (102) and arms (104) about a second axis in the same plane as, but perpendicular to, the pivot axis. A camming arrangement (144, 146, 152) working in conjunction with the rotation about the second axis periodically forces the spinning discs (102) to pivot about the pivot axis to thereby generate a force along the second axis which can be used to perform useful work.


The present invention relates to a gyroscopic apparatus particularly, but not exclusively, for providing a source of energy. More particularly, the present invention relates to a gyroscopic apparatus having application as a prime mover on land, water or in space.

A gyroscope can, in its broadest aspect, be considered as an object rotating about a fixed point, and for practical purposes a gyroscope consists of an axially symmetrical rotating body. A significant feature of a gyroscope is that the angular momentum and the rotational axis preserve their direction as long as no external forces act upon the gyroscope, and because of these tendencies the gyroscope is often used as a movement stabiliser. To increase the rotational momentum the gyroscope is generally constructed with its mass as far as possible from the axis of rotation. This can be readily achieved using a disc with a thickened rim.

As the gyroscope precesses about its axis a considerable amount of energy is stored in the device by virtue of its rotating mass. However, conversion of this energy to useful work is poorly documented. Release of this energy along the precession of rotation axis as the device rotates would generate a thrust which could have many diverse applications.

When angular velocity changes direction but constant in magnitude, the angular acceleration is known as gyropscopic acceleration and the couple which produces the acceleration is known as a gyroscopic couple. In the case of a disc rotating about in a vertical plane about a horizontal axis with angular velocity .omega., which is at the same time spinning about a spin axis, a gyroscopic couple is created which is orthogonal to the plane of precession and the plane of rotation. The sense of the gyroscopic couple depends on the direction of rotation of the disc and of the precession axis.

An object of the present invention is to provide a gyroscopic apparatus which is capable of generating a pulsatile force.

In accordance with the present invention there is provided a gyroscopic apparatus comprising:

a pair of rotatable masses disposed opposite one another;

means for mounting said masses which enable said masses to pivot about a pivot axis, said pivot axis lying in a mirror image plane which is directly between said masses;

drive means for driving said masses so as to give said masses respective opposite angular momentums, having directions substantially perpendicular to and directed away from said plane, and for driving said apparatus so as to rotate said masses about a central axis which is in said plane and perpendicular to said pivot axis;

means for periodically forcing said masses towards one another from a predetermined position and allowing said masses to return to said predetermined position so as to generate a pulsatile force in said mounting means.

Accordingly, in one aspect of the present invention there is provided a gyroscopic apparatus comprising:

a first shaft adapted to be rotated about a precession axis,

at least two second shafts generally disposed orthogonally to said first shaft and coupled to said first and each second shaft having an end carrying a rotatable mass thereon, said masses being substantially diametrically disposed and being rotatable in different directions about a respective shaft axis,

drive means adapted to rotate said orthogonal second shafts and said rotatable masses as said apparatus spins about said precession axis,

mass support means coupled between said first shaft and each orthogonal shaft for supporting each mass during rotation of said gyroscopic thrust apparatus about said precession axis,

mass reciprocating means coupled between said first shaft and said mass support means for causing said masses to reciprocate in rectilinear movement as said masses rotate about said precession axis, and

thrust bearing means disposed on said first shaft at an upper end thereof for transmitting thrust axially along said first axis, the arrangement being such that, in use, said gyroscopic thrust apparatus is rotated about said precession axis and said masses are rotated about each respective shaft axis and are also reciprocated in a direction substantially orthogonal to said precession axis, and as the speed of rotation reaches a predetermined value, pulsatile force is created which acts through said mass support means to create an upward thrust on said first shaft which transmits said upward thrust to said thrust bearing.

Preferred embodiments of the present invention will hereinafter be described, by way of example only, with reference to the accompanying drawings, wherein:

FIG. 1 is a perspective view of a first preferred embodiment of a gyroscopic apparatus according to the present invention;

FIG. 2 is a top perspective view of the gyroscopic apparatus of FIG. 1;

FIG. 3 is a side view of the apparatus of FIG. 1;

FIG. 4 is an end view of the apparatus of FIG. 1;

FIG. 5 is a perspective view of a drive coupling mechanism of the apparatus of FIG. 1;

FIG. 6 is a side view of a second preferred embodiment of a gyroscopic thrust apparatus in accordance with the present invention;

FIG. 7 is a sectional view 7--7 of the apparatus of FIG. 6; and

FIG. 8 is a sectional view 8--8 of the apparatus as shown in FIG. 7.

A gyroscopic thrust apparatus 100, as shown in FIGS. 1 to 4, comprises a pair of opposed identical rotatable discs 102, two respective arms 104 used to mount and support the discs 102 and a central rotatable shaft 106. The arms 104 are "L" shaped and each has a base portion 110 and an upwardly extending column portion 112. At the top of each column portion 112 there is disposed a shaft mounting block 114 which is adapted to receive a rotatable shaft 116. Both ends of the rotatable shafts 116 extend from their respective mounting blocks 114, with one end being fixed to the centre of a respective disc 102 and the other end being fixed to a respective pulley wheel 118.

The discs 102 are driven by the pulley wheels 118 so as to give discs 102 an angular momentum L along the axis of rotation 120 of the discs 102 and directed away from the central shaft 106. The pulley wheels 118 are driven by a flexible cable 122, which in turn is driven by a pair of coaxial driving wheels 124. The axis of the driving wheels 124 is perpendicular to the axis 120 of the coaxial pulley wheels 118. The driving 124 wheels are driven by a shaft 126 which is coupled to a driving mechanism, described below with reference to FIG. 5.

The arms 104 are pivotal about a pivot axis 130 at which the bases are hinged and connected to a coupling pin 132. The positioning of the arms 104 is controlled by a linkage arrangement 140, illustrated in FIGS. 1 and 2. The linkage arrangement 140 comprises a plate 142 adapted for rotation about the axis of the central shaft 106 with respect to a cam 144. Two link arms 146 and 148 are disposed opposite one another and adjacent the cam 144. Each link arm 144 and 146 is fixed to the plate 142 at one end thereof so that end is only able to pivot in a horizontal plane parallel to the plane of the plate 142. A side surface of the each link arm 146 and 148 abuts the cam 144 so that on rotation of the plate 142 with respect to the cam 144 the free ends of the link arms 146 and 148 are pivoted with respect to their fixed ends by virtue of the action of the cam 144. The arms 104 of the discs 102 include a coupling portion 150 fixed to the top of each mounting block 114 and the coupling portions 150 are coupled respectively to the free ends of the link arms 146 and 148 by lost motion links 152.

The driving wheels 124 are driven by a first driving mechanism 160, as illustrated in FIG. 5, which comprises a pulley wheel 162, that is driven by a drive belt 164 and has a drive shaft 168 extending therefrom. The drive shaft 168 is keyed to a slot 170 of a shaft 172 which is coupled to the shaft 126 of the driving wheels 124 by a bearing mechanism (not shown). The keyed coupling of the drive shaft 168 to the upper shaft 172 enables the gyroscopic apparatus 100 to move vertically with respect to the drive shaft 168 and the pulley 162. The vertical movement of the apparatus 100 is also facilitated by providing an inner shaft 180 which extends within the central shaft 106 such that the central shaft 106 and the apparatus 100 is slideable with respect to the inner shaft 180. The inner shaft 180 is also used to drive the apparatus 100 so as to rotate the arms 104 and the disc 102 about the axis of the central shaft 106 so as to impart a torque T directed upwards along the axis of the inner shaft 180, on the discs 102.

The discs 102, as shown in FIG. 4, are constructed so that most of their mass is concentrated on the rims 190 of the discs 102. This concentration is assisted by providing holes 192 in the discs 102 between their axis of rotation 120 and the rims 190. This gives the discs 102 a larger component of angular momentum for a given angular velocity.

The apparatus 100 is driven so as to impart an angular momentum, as discussed previously, on each of the discs 102 and at the same time rotate the apparatus 100 about the inner shaft 180. Whilst the apparatus 100 rotates the cam 144 is held fixed by a locking mechanism (not shown) so that the linkage arrangement 140 periodically pulls the discs 102 in towards one another.

As the discs 102 are rotated about the axis 120, the torque applied on the inner shaft 180 ensures that a torque is applied to the discs 102 which is perpendicular to their angular momentum and directed upwards. This torque causes a gyroscopic couple to be applied to the discs 102 by virtue of the relationship between torque and change in angular momentum, as stipulated in equation 1 below.

The applied torque causes the angular momentum of the discs 102 to change direction and move upwards, in other words causes the discs 102 to precess upwards. The discs 102, however, are also being acted upon at the same time by a centrifugal force, which is acting to move the discs 102 down to the position where their axes are aligned, as shown in FIG. 3. Utilising the action of both the gyroscopic couple and the centrifugal force, the apparatus 100 is driven so that the discs are positioned to form an angle 200, as shown in FIG. 3. The angle 200 is the angle between the plane 202, which includes the pivot axis 130 and the centre of a disc 102, and the plane 204 which is perpendicular to the applied torque. For the apparatus 100 to operate effectively the discs 102 should be positioned so that in use the angle 200 is greater is than When this occurs and the linkage arrangement 140, together with the cam 144, is used to periodically pull the discs 102 in towards one another, the centrifugal force acting on the discs 102 causes the discs 102 to move away from one another whenever the cam 144 is not acting to bring them together. The cam 144 and the linkage arrangement 140 are designed so that the discs 102, as they are rotating about the axis central shaft 106, move towards and away from each other with relatively high frequency. The discs 102 are moved in this manner so as to decrease and increase their component of angular momentum which is directed along the central axis of the shaft 106. The angular momentum of the discs 102 is changed in such a manner so as to produce a higher rate of change in one direction than in another so as to produce a torque which gives rise to an upward force in the column portions 112 of the arms 104 of the discs 102. This is preferably achieved by configuring the surface of the cam 144 so the discs 102 are moved in towards each other at a faster rate, by the action of the cam 144 and the linkage arrangement 140 than the rate at which they recover and move away from one another under the action of the centrifugal force. An alternative method involves moving one disc 102 in towards and away from the central axis 106 at one rate whilst the other disc 102 is moved in towards and away from the central shaft 106 at a slower rate. The first is achieved using a symmetrical cam 144 and the second is achieved using an asymmetrical cam 144.

The differing rates of change in angular momentum and different directions in which the changes take place result in a pulsatile force which appears in the arms 104 and causes the apparatus 100 to periodically move up and down along the inner shaft 180. Whilst the force is pulsatile and gives the apparatus 100 a vibrating motion, over a period of time, due to the differing rates of change in angular momentum, a net upward force is generated in the arms 104 of the discs 102 which may be put towards useful work.

A second preferred embodiment of a gyroscopic apparatus, is illustrated in FIGS. 6 to 8 and generally indicated by reference numeral 10. The apparatus 10 is adapted to be rotated about a vertical spin or precession axis 12 so that gyroscopic couples result in an upwardly directed force onto thrust bearing 14 as will be later described in detail, and which can be used to provide work.

The gyroscopic apparatus 10 has a central shaft 16 coaxial with axis 12 which is coupled by a bracket 18 and fixing pins 19 at its lower end to a twin shafted slide unit 20. The slide unit 20 is mounted on a bottom support bearing 22 and is coupled to a gearbox drive arrangement, generally indicated by reference numeral 24 which has gears and an input power shaft 26 to which an input power source, not shown in the interest of clarity, can be connected. The entire apparatus 10 can be rotated about precession axis via gearbox drive 24.

The upper end of the shaft 16 is coupled to a miter gear 29 seen in broken outline within a gearbox 28. Within shaft 16 is a gyroscopic drive shaft 30, seen in broken outline, which is also driven by gearbox drive 24 and which terminates in gear 32. Coupled to gear 29 are gears 34, 36 which are adapted to be rotated in opposite directions. Coupled to gear 34 is a shaft 38 connected by universal joints 40 and bearing housing 41 to a gyroscope 42 in the form of a planar disc with four holes 44 equiangularly spaced about its circumference, as best seen in FIG. 2. The rim 46 of the disc is thickened to increase rotational momentum as aforedescribed. Gear 36 is coupled via shaft 48, universal joints 50 and bearing housing 52 to gyroscope 54 which are identical to the aforedescribed components.

Each bearing housing 41, 52 is coupled by adjustable lost motion links 56, 57 to yokes 58, 59 mounted at the top of twin brackets 60, 62. At the bottom of each bracket 60, 62 spaced guides 64a, b, 66a, b are disposed which allow the brackets to slide on respective twin slides 20 as will be described. The links 56, 57 have adjustable free-play built in to permit the gyroscopes 42, 54 to move towards the centre axis 12 as the apparatus rotates. Also, each bearing housing 41, 50 is coupled to a gyroscope housing bearing support arms 68, 70 which in turn is connected via loose stud pivotal joints 73, 74 to respective bearing support arms 60, 62 in proximity to outermost guides 64b, 66b. The slide 20 terminates in keeper plates 75 to prevent the brackets coming off the slide. Thus bearing support arms 60, 62 can pivot relative to joints 73, 74 so that bearing housings 41, 52 and hence gyros 42, 54 can move relative to their respective stop links 56, 57.

At the top of the unit the shaft 79 terminates in an upper support bearing 80 which, together with bearing 22, permits the unit 10 to be rotated about axis 12. The unit can be located in a housing 72 which is partly shown, and which can, of course, be coupled to the drive unit and device to which work is to be applied.

Disposed beneath slide 20 is a pair of opposed eccentrics 82, 84 mounted next to each other on shaft 16. The eccentrics have a support bush 86 bolted thereto and respective connecting rods 88, 90 which are connected to brackets 60, 62 via coupling pins 92, 94. It will be appreciated that as the shaft 16 is rotated bush 86 and eccentrics 82, 84 transform the rotary motion to rectilinear motion which causes the brackets 60, 62 to reciprocate on the slide 20 in opposite senses by the same amount of magnitude.

The gyroscopic apparatus 10 operates as follows:

power into the gearbox 24 causes the whole unit to rotate, for convenience in the anti-clockwise direction of the arrow in FIG. 7. Simultaneously, the drive is supplied via shafts 30, 38, 48, and joints 40, 50 to gyroscopes 42, 54 which are then rotated in opposite directions about horizontal axis 51. In addition, as the unit rotates the eccentrics 82, 84 cause brackets 60, 62 and hence gyroscopes to move reciprocally along slide 20 in opposite senses. That is the gyroscopes moves towards and away from each other in phase once per revolution and this can be considered as "pulsing" movement. Lost motion links 56, 57 and arms 60, 62 initially support the gyroscopes 42, 59 until the precession or spin speed is such that the centripetal force is sufficiently high to support the weight of the gyroscopes. As the rotational speed increases and the speed of gyroscopic rotation increases, a gyroscopic couple shown by arrows, Gc, is created for each gyroscope which, at a certain speed, rises or causes the gyroscopes to tilt upwards to be driven along new axis 96, 98 shown in dotted outline. This movement is permitted because of the freeplay in the lost motion couplings 56, 57 and because of pivotable connection 73, 74. This in combination with the pulsatile movement of the gyros 52, 54 causes a net transfer of energy from the gyros providing a pulsatile upward force acting at each joint 73, 74 which is coupled via slide 20 to shaft 16 and through gearbox 28 and shaft 79 to the lower thrust plate 15 of the thrust bearing 14. When the pulsatile frequency becomes high enough the net force appears substantially continuous and pulse-free. The thrust is transmitted through the thrust bearing to a work destination, such as vehicle drive. The reaction to the thrust is of course created by the vehicle drive.

Various modification may be made to the apparatuses hereinbefore described without departing from the scope of the invention. For example, the masses may be other than rotatable discs and two or more discs may be present. Preferably, there may be an even number of such discs and two or more shafts can be provided. Also, the discs can be rotated in the opposite direction or the unit can be driven to the opposite direction or the unit can be driven to precess in the opposite direction.

The apparatus has application in many fields, such as lifting apparatus. It is envisaged that the invention has application on land, in or under water and in space. It is believed to be particularly advantageous in space where the force of gravity and friction is minimal. The invention may also have application as a controlled force generator which is proportional to speed of rotation.

Advantages of the invention are that a controlled thrust is provided using a gyroscope which can be used in a variety of work applications. The apparatus requires no special components or materials and can readily be constructed to be drive from a variety of input sources, for example, electric motor, I.C. engine or gas turbine. Because the thrust is derived from gyroscopes the device is believed inherently stable as in the work receiving device.

Sandy Kidd Gyroscopic Levitator

28 Jul 1999

Years ago, we got a letter from Beyond 2000 wanting a set of the KeelyNet disks. The letter said of the information posted that Beyond 2000 had seen, there was more than enough for 2 years of fascinating TV reports and they wanted a set of all the files. They read the file called KIDD1.ASC and wrote back saying they were going to interview Sandy Kidd and broadcast the segment. I got a videotape of the broadcast which is the same one that Discover replayed as shown in this file.

At the time, I believe the conclusion was that the lifting effect was caused by linear friction where the bucket of scrap metal that was used to counterbalance the device was ratcheting downwards due to the unstable rotation of the device causing it to jerk upwards.

Kind of a creeping effect from the successive jerks, analogous to a kinemassic/inertial drive but not exactly the same thing.

This could be tested with an encoder or rpm wheel driven by the rope as it would show a jerking motion as opposed to a smooth transport and pin down the cause of the lift. You will note it goes so high and then stops and Kidd has to start it in the first place, much like engaging the first tooth of a gear though in this case it is release tension so the jerking effect will take over and provide apparent 'lift'.

It is a neat effect at any rate though needs a lot more testing before claiming weight loss or any kind of gravity reduction. 

Jerry W. Decker / KeelyNet

Cornwall RO & wrote:
Hi Stefan and All,

Okay, we will tell you the science of what Tony and I are getting up to &ltNot the nitty gritty). I did some analysis of his setup and applied Newtonian Mechanics. The analysis I show you here is for a near zero reactive propulsion system. Newton's Law seems to contadict itself. The URL is

No, Sandy Kidd is not nutballs. I've seen Tony's system working. To quote Sir Arthur Eddington and bring him up to date and less arrogant:

'Don't believe any slight effect until you have theory BUT do believe any effect if massive and theory can't explain it.'

(He said don't believe any experiment until you have theory). - Remi.

On Wed, 28 Jul 1999,
Stefan Hartmann wrote:

Hi All,
I got a new movie in RealVideo(G2)-format from "Kai Hackemesser" ( ) about the Sandy Kidd Gyroscopic levitator device. It defies the 3rd Newton action-reaction  law.
It can be seen at: in streaming mode, otherwise you can also download it at:
or from:
Regards, Stefan.

Videos --

Gyroscopic Propulsion


Michael Shanahan

SUNDAY EXPRESS, London, England
Oct. 23, 1988

Garden-shed genius heads for the stars

Day trips to Australia and weekend jaunts in the Milky way could become a reality, thanks to the brainpower of Scottish inventor.

Sandy Kidd's discovery, which is set to revolutionize travel, is already sending shock waves through the scientific establishment. One of Britain's top physicists described it "mind boggling."

Mr. Kidd's work, researched in his garden shed, will make science fiction writers dreams come true. Trips to Mars will take 34 hours and the journey from London to Sydney will be reduced to a matter of minutes.

The 51-year-old former apprentice toolmaker's development of a Gyroscopic Propulsion process has stunned academics because it challenges Isaac Newton's Law of Motion.

He has worked out that, by setting gyroscopes at particular angles, a lifting force that defies gravity is produced.

Mr. Kidd, who worked for five years on his brainchild at his Dundee home, is now moving to the heart of the space industry in California where a massive investment program is already underway.

Dr. Harold Aspden senior visiting research fellow at Southampton University, has seen the results of early tests. "Scientifically speaking it is a bombshell," he says. I would not have believed this if I had not seen it with my own eyes.

"It will totally revolutionize the travel industry. Taken to the ultimate, we will have planes without jet engines and helicopters without rotor blades."

Mr. Kidd is being financed by an Australian research company. A spokesman said: "We are on to something really big. The next stage is to power up Sandy's device in California with the prospect of building a full-scale vehicle at the end of the day. "Money is no object, but we are determined that his work will get out."

At Imperial College, London, Professor Eric laithwaite, who has followed Mr. Kidd's experiments, said: "I have always been convinced it could be done . . . and I like to see someone defeat the system. He may be a long time perfecting it but I sure he will succeed."

Mr. Kidd made the final breakthrough in this work highlighted in the Sunday Express last year, about four weeks ago in a Laboratory in Melbourne.

"There was just one thing I couldn't understand," said the former RAF radar technician. "I had worked round the problem until that day when it dawned on me.


Beyond 2001: The Laws of Physics Revolutionised


Sandy Kidd (Author), Ron Thompson (Author)

Product details

Hardcover: 224 pages
Publisher: Sidgwick & Jackson; 1st edition (Aug 1990)
ISBN-10: 028399925X
ISBN-13: 978-0283999253

Synopsis -- Working from a garden shed in his back garden in Dundee, Scottish amateur Sandy Kidd devised a machine which defies Newton's third law of physics and which could revolutionize space travel. Scorned by the British scientific establishment, he had to take his machine - the gyroscope - to Australia and the USA to get the funding to develop his invention, which could make possible weekend trips to Mars. This personal account of the former RAF radar technician tells of his struggles, disappointments and triumphs.

21 Jul 1995
From: "" <>



On Mr. Kidd's paper the device is also known as the Mark III A/G thrust unit.

I too had built a "short lived" prototype in the Autumn of '79 of a precessional torque thrust module that certainly produced a desired and complete force in an upward direction.

What brought me to such an interest was from a wrist excersizer then known as the "DynaBee". Unique motions were observed when RPM threshold reached approx. 10,000 rpm. The DynaBee is twisted about where a weighted gyros pivotals rub on an inner flange after the gyro is started by the user.

This simple little sportsmans accessory is what sparked me off after repeatedly disturbing its axis thus resulting a force of precessional torque that I had called at the time as the "prime movement".

The prototype involved two main above the other that would rotate in equal, exact opposite directions. Each of the platforms had three motor spun surplus gyros pivoted on their own two degree bearings. The third degree pivot was spring loaded as the main axis influenced by the resulting thrust force.

All gyros were brought to near 20,000 rpm then the platforms were rotated to about 45-50 rpm.  The result was a fairly stable upward force.

Note at this point the energy to maintain prime speed was approximately 1/4that needed to bring all gyros to speed and stabilize.

My budget and lack for proper representation were not at the time.  I am pleased to see confirmation of Mr. Kidd's work and welcome communications from him and his peers.

Thank you for your time and look forward to your replies.

David A. Duca, KA9JSV

From: (Jerry Decker)
Subject: Re: gravity5.asc
To:  "" <>

Re: gravity5.asc

Hi David!

Thank you for an excellent description of your experiments and source of inspiration for what I consider confirming information about Sandy Kidds invention. We were contacted by the TV show Beyond 2000 and they bought a set of KeelyNet disks...a very nice letter was included saying just from the information they had downloaded from a friends Australian KeelyNet mirror, they had enough info to do 2 years worth of shows but wanted the whole fileset while it was available...about 6 months to 1 year after this, they did a short video of Sandy Kidd that I have a copy does not actually free levitate but instead seems to lift against a counterweight....

The other really hot correlations with this are Cook or Thornsens inertial drives....they use a cycloid motion to produce unidirectionaly thrust without needing a reaction other words, they appear to be able to move in ANY DIRECTION....I wrote this up in one of my past newsletters after seeing Thornsens video of how he propelled a canoe across a pool at 82 feet/min using only his inertial propeller or such touched the water, just these tiny forward jerks to pull the mass....quite incredible...

The hot correlation that I found energywise is in Russian researcher Chernetski as detailed in the PLASMAFE.ZIP article on KeelyNet, I will attempt to send both of these files to you though I've not had much success with file transmissions on the InterNet... Thank you very much for letting me know about your research in this area, I am truly fascinated!!!

There is no reason to negate the possibility of causing the electrons in atoms to form a cycloid AND with all atoms polarized so that each cycloid is driving in the same direction, the mass would simply move without all that mechanical garbage...!!!! Keely says you can use sound to 'graduate' a mass, causing all atoms and molecules to polarize (just means line up in this case) into what has now been actually created in a lab as a Bose Einstein Condensate!!! Dan Davidson and I wrote an article predicting this in Oct. of 94 that just got published in the June ITS (Tesla journal) and just this past week, two physicists in Boulder actually proved it with the creation of this strange form of matter...

One other point, Eric Laithwaite did a demonstration in front of Harold Aspden where he took a heavy metal disk suspended on a bearing and attached to a hold the shaft in both hands out in front of you and somewhat close to the body...then while the heavy disk is spinning, you try to life the shaft WON'T GO UP, it goes sideways and up, no matter how much force you use....successive still photos of this show that the arc prescribed is 32.8 degrees, (this might not be the EXACT NUMBER, but I am quoting from memory) which is exactly the angle found in DNA.....Aspden thinks this angle has free energy and other applications....

October 1995 Roundtable

Vanguard Sciences Roundtable Meeting

Greetings! This is your reminder for our 24th meeting of the Roundtable. Can you believe as of October, 94' this will be two years of monthly meetings?

Something really amazing seems to be congealing in the minds of many people with whom we all have been in contact or read about.  It relates to what appears to be a Universal Principle manifesting in nature as a CYCLOID.

KeelyNet has long promoted the idea that geometry, frequency and spin are key elements necessary to achieve much of the phenomena we are trying to qualify and eventually quantify through a working and reproducible device.

Victor Schauberger proved the Cycloid form was most easily created by use of an egg shaped flow pattern. Rudolph Steiner also said the heart shaped flow produced an inflowing, life-giving rotation which nature used when building new life, healing or accumulating energy. The life-enhancing effects can be augmented by using magnets, crystals, copper and other elements in the right combinations. Now, there have arisen numerous correlations in the field of inertial and gyroscopic drives from researchers such as Dean, Cook, Laithwaite, Kidd and Thornsen among others.

One must realize that there is a difference between an inertial drive such as promoted by Dean, Cook and Thornsen and the precession effects of gyroscopic drives as investigated by Laithwaite and Kidd. In the case of inertial drives, the ideal system involves the creation of a cycloid motion, currently achieved by a complex mechanical rotation of one or more spinning weights.

The simplest form is a spring with a weight attached to the end of it and mounted on a rotating disk. You can see how the weighted spring can be released at the same point in the rotation of the disk to give a hopping action in a single preferred direction.

The spring slowly pulls the weight closer to the shaft as the disk spins away from the direction of the hopping motion, this allows the spring to 'recharge' during each rotation. The device then moves in short hops only in one preferred direction through the inertia of the moving weight when it is released at the same point during the disk rotation.

In the case for gyroscopic precession, a perpendicular motion in relation to the angular spin of the gyroscope will also produce a lifting force against the weight of the gyroscope. The claims are that weight is not eliminated but reduced from its norm. It is felt that further research along this line will yield a levitating device.

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