Ground effect machine

Claim 1

IN AN INVENTION OF THE CHARACTER DESCRIBED, COMPRISING A RECTANGULAR PLATFORM HAVING A RECTANGULAR BOX MOUNTED ON THE REAR PORTION THEREOF, AN INTERNAL COMBUSTION ENGINE MOUNTED ON THE SAID PLATFORM AND FORWARD OF THE SAID RECTANGULAR BOX, THE SAID ENGINE DRIVING A PROPELLER ON THE END OF A SHAFT PROJECTING INTO THE SAID RECTANGULAR BOX, AN OPENING IN THE WALL OF SAID BOX ADJACENT SAID ENGINE AND THROUGH WHICH AIR IS DIRECTED TO THE PROPELLER, MANUALLY CONTROLLED MECHANISM MOVABLY MOUNTED IN THE SAID BOX FOR CONTROLLING AN OPENING IN THE WALL OF THE BOX REMOTE FROM SAID FIRST MENTIONED WALL TO PERMIT AIR TO ESCAPE FROM SAID BOX WHEN DESIRED TO PROVIDE THE THRUST NECESSARY FOR LINEAR MOTION, THE SAID RECTANGULAR PLATFORM HAVING AN OPENING THEREIN AND UNDER THE SAID BOX, AN AIR DUCT HAVING ITS AIR INLET IN A PLANE THAT IS AT RIGHT ANGLE TO THE SAID RECTANGULAR PLATFORM ON WHICH IT IS MOUNTED, AND MANUALLY CONTROLLED SHUTTER MOUNTED WITHIN THE SAID AIR DUCT TO PROVIDE MEANS OF CONTROLLING THE AMOUNT OF AIR THAT ENTERS THROUGH THE AIR DUCT TO THE UNDERSIDE OF THE SAID RECTANGULAR PLATFORM WHICH IT LIFTS UPWARD OFF THE GROUND WHEN THE SAID PROPELLER IS ROTATING AT A PREDETERMINED VELOCITY THAT AT THE SAME TIME PRODUCES THRUST FOR INDUCING LINEAR MOTION TO SAID GROUND EFFECT MACHINE.