The author suggests a unique method of movement using the energy of the medium of motion. The fact that the braking force (resistance) when extracting energy from the flow and thrust of the propulsion unit depend on the mass of the medium, which is involved in the inhibition (with energy recovery) and deadlift. If it is the same (or the same) mass, then the drag and thrust forces are equal. But if these masses are different (or the medium is different), then the forces are also different. This difference has long been widely used by mankind when the environment is different (wind-earth) (wind generators) or when the energy source is separated from the environment (all modern engines, rockets). The peculiarity of the author's new engine is that its engine extracts energy and creates thrust in the same medium by redistributing energy (speeds) within the medium, using DIFFERENT masses of this medium. The difference in forces can be used to move (decelerate or accelerate) the aircraft. In this case, the laws of conservation of energy and momentum of the system as a whole (apparatus-medium) are fulfilled. For us, the important thing is that we can fly and launch into space for free, without the need for massive quantities of expensive fuel. This may seem like a fantastic, unprincipled far-out dream, but simple experiments can confirm or disprove the presented theory.