Adroit management of boundary layer airflow is a key concern of modern aeronautics. Yet experiments with round and lenticular airfoils showed them to be inferior to conventional designs for a host of compelling reasons. And, whatever the attractions of such shapes for UFOs, so far as is known, we are unable to develop the associated power densities, means of propulsion, and performance.
It’s not just about airfoils. It’s about dynamic removal of the boundary layet through suction.
Give me $10 million and I can create aircraft with the observed speeds with 1946 technology.