Supersonic nozzle

Claim 1

A VARIABLE TRANSONIC NOZZLE HAVING A PAIR OF FIXED AND PARALLEL SIDE WALLS ENCLOSED WITHIN TOP AND BOTTOM WALLS, SAID NOZZLE COMPRISING A PAIR OF SPACED RIGID WALLS HOUSED WITHIN SAID FIXED WALLS DEFINING THE FLUID FLOW PASSAGEWAY, SAID RIGID WALLS HAVING A CURVED INLET SECTION AND AN OUTLET SECTION OF SIMILAR CURVATURE FORMING A CONTINUOUS CONVEX SURFACE, A PAIR OF FLEXIBLE WALLS INTEGRALLY ATTACHED TO SAID RIGID WALLS FORMING A CONCAVE DOWNSTREAM EXTENSION THEREOF AND ESTABLISHING A POINT OF INFLECTION AT THE JUNCTURE OF THE RIGID AND FLEXIBLE WALLS, SAID RIGID WALLS INCORPORATING INTEGRALLY ATTACHED ARMS PIVOTALLY SUPPORTING SAID RIGID WALLS ON SAID FIXED WALLS AT PIVOTS LOCATED IN PREDETERMINED MANNER INTERMEDIATE OF THE ENDS OF SAID FLEXIBLE WALLS, AND SAID FLEXIBLE WALLS SLIDABLY SUPPORTED AT THE DOWNSTREAM ENDS THEREOF ON SAID FIXED WALLS, WHEREBY SAID RIGID WALLS MAY BE ROTATED FOR MOVEMENT TOWARD AND FROM ONE ANOTHER THEREBY FLEXING SAID FLEXIBLE WALLS TO FORM THE DESIRED AERODYNAMIC CURVATURE, AND POWER ACTUATED MEANS FOR MOVING SAID COMBINED RIGID AND FLEXIBLE WALLS PIVOTALLY TOWARD AND FROM ONE ANOTHER.