Fin-tip mounted horizontal control surface for airplanes

Claim 1

AN AIRCRAFT INCLUDING A FUSELAGE STRUCTURE AND A VERTICAL TAIL FIN INCORPORATING A RIGID SPAR STRUCTURE RIGID WITH AND RISING FROM THE FUSELAGE STRUCTURE, AND OF A BREADTH FROM ITS LEADING EDGE REARWARDLY APPROXIMATING THE BREADTH OF THE FIN, SAID FIN ALSO INCLUDING A SKIN OVERLYING SAID SPAR STRUCTURE, A HORIZONTAL CONTROL SURFACE INCLUDING A FORWARD SPAR AND A REAR SPAR EACH EXTENDING FROM TIP TO TIP OF THE HORIZONTAL CONTROL SURFACE, THE FIN''S SKIN BEING APERTURED ADJACENT ITS UPPER END FOR PENETRATION OF THE REAR SPAR OF THE HORIZONTAL CONTROL SURFACE, AND THE FIN''S SKIN AND SPAR STRUCTURE BEING ARCUATELY APERTURED, ALSO ADJACENT THE FIN''S UPPER END, FOR PENETRATION AND ARCUATE MOVEMENT OF THE FORWARD SPAR OF THE HORIZONTAL CONTROL SURFACE, PIVOT MEANS WITHIN THE FIN DEFINING A HORIZONTAL PIVOT AXIS, AND INTERCONNECTING THE SPAR STRUCTURE OF THE FIN AND THE REAR SPAR OF THE HORIZONTAL CONTROL SURFACE, MEANS WITHIN THE FIN INTERCONNECTING THE SPAR STRUCTURE OF THE FIN AND THE FORWARD SPAR OF THE HORIZONTAL CONTROL SURFACE, FOR PIVOTALLY ADJUSTING SAID SURFACE ABOUT ITS HORIZONTAL PIVOT AXIS, SAID HORIZONTAL CONTROL SURFACE HAVING A SKIN OVERLYING ITS FORWARD AND REAR SPARS, AND EXTENDING INWARDLY FROM ITS TIPS TO BUT NOT THROUGH THE SKIN OF THE FIN.