youtube for "Piasecki Airgeep" or "Moller SkyCar" to get a feel of current (which hasn't almost changed in 50 years) state of development in this area. Develop

youtube for "Piasecki Airgeep" or "Moller SkyCar" to get a feel of current (which hasn't almost changed in 50 years) state of development in this area. Development of a new aircraft is very money-hungry enterprise. Moller, while was able to advance farther than anybody else, made several flawed design decisions (the flaws became obvious only when they were really implemented and tried out in the actual prototype, not before - this is why it is also very risky endeavor) which wouldn't let his car fly successfully and discredited the idea for the wide investing public.