"The craft described in the patent features a cavity wall filled with gas, which is then made to vibrate using powerful electromagnetic waves.
This then creates a vacuum around the craft, allowing it to propel itself at high speeds.
The UFO-style ship can be used in water, air or even space.
‘It is possible to envision a hybrid aerospace/undersea craft (HAUC), which due to the physical mechanisms enabled with the inertial mass reduction device, can function as a submersible craft capable of extreme underwater speeds… and enhanced stealth capabilities,’ the patent continues.
‘This hybrid craft would move with great ease through the air/space/water mediums, by being enclosed in a vacuum plasma bubble/sheath."
https://metro.co.uk/2019/04/18/us-navy-secretly-designed-super-fast-futuristic-aircraft-resembling-ufo-documents-reveal-9246755/
"An electromechanical propulsion system is disclosed. The propulsion system uses magnetic propulsion and magnetic bearings to move a vehicle. The propulsion system is well suited for use on land, air, space, above water and underwater vehicles. The propulsion system includes a plurality of electromagnets that repel each other with strong and weak magnets to move the propulsion motor in linear motion. Multiple side propulsion motors can be incorporated to alter the direction of travel of the electromechanical propulsion system. The propulsion system is manufacturable in a self contained configuration where it is controllable from a remote location."
https://patents.google.com/patent/US20100244590A1/en
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