he with its huge box-like central lift fan, along with its complex drivetrain and downward swiveling exhaust nozzle, basically handicapped the aerodynamics, and in essence the very concept, of its more conventional Navy and Air Force brethren.
Ekranoplan Casspian The Russian Tank-Ship-Plane. Not exactly a plane but still cool. It flies just over the water because of ground effect. So it can haul a heavy load very efficiently compared to getting it up to altitude. Or floating.