Jet lift vertical take-off aircraft

Claim 1

IN A FREE-FLYING JET LIFT VERTICAL TAKE-OFF AIRCRAFT HAVING AN AERODYNAMIC SHAPE DESIGNED FOR FORWARD HIGH SPEED FLIGHT, AND FOR PROVIDING SUBSTANTIAL AERODYNAMIC LIFT DURING SUCH FORWARD HIGH SPEED FLIGHT EFFICIENTLY WITHOUT GIVING RISE TO EXCESSIVE DRAG ON THE AIRCRAFT, TWO JET DISCHARGE OUTLETS HAVING ELONGATED TRANSVERSE CROSS-SECTIONS WHICH EXTEND SUBSTANTIALLY PARALLEL TO THE LONGITUDINAL AXIS OF THE AIRCRAFT, AND WHICH ARE LONGER THAN HALF THE LENGTH OF THE AIRCRAFT, SAID JET DISCHARGE OUTLETS BEING LATERALLY SPACED APART AND BEING LOCATED BELOW THE TRANSVERSE HORIZONTAL MEDIAN PLANE OF THE AIRCRAFT AND ADJACENT THE UNDERSIDE THEREOF, SO AS TO BOUND A SUBSTANTIAL AREA OF THE UNDERSIDE OF THE AIRCRAFT, MEANS FOR DIRECTING JET GASES THROUGH EACH OF SAID JET DISCHARGE OUTLETS SO THAT THE JET GASES EMERGE FROM SAID JET DISCHARGE OUTLETS IN THE FORM OF A PAIR OF DOWNWARDLY DIRECTED SHEET-LIKE JETS WHICH ARE UNBROKEN ALONG THEIR LENGTHS, THE JETS TOGETHER BEING CAPABLE OF SUPPORTING THE AIRCRAFT AT A SUBSTANTIAL HEIGHT ABOVE THE GROUND IN FREE AIR, AND FORMING LATERAL BOUNDARIES OF SAID SUBSTANTIAL AREA OF THE UNDERSIDE OF THE AIRCRAFT AND INHIBITING FLOW OF AMBIENT AIR LATERALLY AND UPWARDLY FROM SAID AREA AROUND THE AIRCRAFT, WHEREBY THE JETS PROVIDE JET LIFT FOR THE AIRCRAFT, AND INCREASE THE AERODYNAMIC LIFT ACTING ON THE AIRCRAFT WHEN THE LATTER MOVES FORWARDLY THROUGH AMBIENT AIR AT A RELATIVELY UPWARDLY INCLINED ANGLE OF INCIDENCE, SO AS TO GIVE EFFICIENT FORWARD HIGH SPEED FLIGHT OF THE AIRCRAFT.