One of Dr. Paul Moller's recent inventions is a two-seat flying saucer that can reach speeds of 75 miles an hour.
The M200G "personal recreation craft" is a vertical-takeoff-and-landing aircraft (VTOL).
It uses a propulsion system to lift and stabilize itself in the air. There are eight small directional ducted fans each powered by a rotary engine.
Using multiple inertial sensors and accelerometers, a computer monitors and adjusts thrust in each fan as often as 400 times per second to maintain stability and flight.
The craft is limited to flying below 10 feet to eliminate the need for pilot certification.
Source: moller.com