Inventor Promotes eSTOL
Dr. David Ullman says his eSTOL design is more efficient than eVTOLs
Small ducted fans on the wing surfaces of conventional aircraft offer a better solution than eVTOL, with no battery penalty, according to Dr. David Ullman.
Small ducted fans on the wing surfaces of conventional aircraft offer a better solution than eVTOL, with no battery penalty, according to Dr. David Ullman.