For  several years I have been building experimental machines in an attempt to replicate a planetary Dynamic Gravitational Field. A machine using these fields would be propelled vertically away from the Earth by the large planetary DGF.  There would be some distortion of the machine's DGF, placing the machine toward the lower part of its field, and the machine would then attempt to accelerate to the center of its field. As the machine would be entirely within the Earth's field, the machine and its field will move as one entity. The force from the Earth's outward acting DGF would ensure that the machine's field remained distorted. This movement would be accelerative and would continue to the extremities of the Earth's DGF. Very little energy input would be required. My calculations show that if a machine left the surface with an acceleration of 1 G, that at the distance of the Moon it would have reached a velocity of about 5 million KPH, in just 6 minutes.

From about 2018 have I changed my thinking on how these DGFs could be created.  My concept of these fields has not changed, just the best way to create them. I initially thought it was simply a matter of rotating magnet fields through the planet's DGF, while the magnets, or magnetic rotor, levitated.

 Previously I believed that Electro Dynamic Suspension was just magnetic repulsion or levitation, and I required a levitating rotor. I did not attempt to use this method as details were very vague, although it is known to be very stable.
I had 2 other options. The first was electromagnetic levitation which is also stable, but requires considerable power input, and the other was repelling permanent magnets. I chose to use permanent magnets for levitation. The main problem is that this will not work in a static arrangement as it is inherently unstable. The intention was to have guides or rollers, and at some rotational velocity it may take on dynamic properties and levitate in a stable manner.

I now believe that Electro Dynamic Suspension may not be magnetic repulsion. Instead it seems to be the Dynamic Gravitational  Field  I have been seeking to replicate.

The rotor I have been using may not be suitable now, and a rebuild may not happen. I am still working on designs in late 2020.

A new design could have a rotor made mostly aluminium. It could be both driven and levitated electromagnetically as a 3 phase circular linear motor. It would need magnets embedded in the top surface, and repelling magnets above to restrain the rotor from excess lift. It would need the same below to take much of the load off the linear motor. This would create a rotating DGF within the Earth's stationary surface DGF. The magnets on the existing rotor are set out like this, but there is only thin alum sheet used in the construction.

Another method would have a heavy alum plate under the rotor, and install a very powerful circular Halbach Array directly above on the existing rotor. Halbach Arrays are very powerful, so this should provide the required levitation and the existing BLDC motor drive system could be utilized.
This system would create a non rotating DGF, but as can be seen by dropping a magnet down an alum tube, the DGFs may interact with no rotation.

These DGFs do not seem to care if they are created by changing polarity, or just one polarity. Hold a long magnet in a alum tube, inserting just one pole of the magnet. Move the magnet slowly upwards and the drag is quite apparent. The Halbach Arrays, which are alternating polarity, simply make much more powerful magnetic fields. The DGFs seem to have more lift and less drag when the magnetic field creating them is at a distance. This is quite different to a motor or generator, where a minimum air gap is required. Perhaps a magnetic field has 2 layers. The inner will create electricity or run a motor, and an outer layer which interacts with non magnetic metals. It may be that a Halbach Array removes the outer layer from 1 side and doubles it on the other side.

I am now working on ideas and models for a small machine about 450mm diameter. There are many arrangements of rotors to be tested.

My latest design is a Torus made from non magnetic metal, containing a torus shaped magnetic rotor.