A new aircraft engine?
It's called the Fluidic Propulsive System. (FPS), means the "fluid propulsion system", or perhaps rather the "fluid-based propulsion system", or actually "fluid physics". In fact, it is not a liquid, but a gas, quite simply air, which from a physical point of view can also be viewed as a very low-viscosity liquid.
Andrei Evulet from Romania, who has 15 years of experience at GE Aviation, has been building prototypes of these engines for some time. He was responsible for the technology that is part of the world's largest jet engine, the GE9X, which is working on the Boeing 777X. Together with his school friend Denis Dancanet, he founded Jetoptera a few years ago. They were guided by the idea of creating a new propulsion system that would be ideal for VTOL's vertical take-off flights and that would enable both large unmanned drones and flying cars to be used.