Originally Posted by
Less Hair
Has this ever been practically demonstrated to be more efficient than what all the other guys are doing?
Ok, efficiency is a function of disk loading: Harrier=bad, V22= better, Helicopter=best.
Lilium kept pushing the idea that a ducted fan is 41% more efficient, (yes it is true, it is called Froude efficiency), but their disk loading is more than 10 times that of a tilt rotor concept! Consequently Lilium concept is 50% less efficent than other tilt rotor concepts. This was known all along by the scientific community, it just took longer for the investor comunity to wake up to the truth.
its explained in great specific detail in that video (mark 25:00)