초록 ▼

A short coupled airplane with variable wing lift comprising a fuselage that is free of the conventional tail assembly and has a wing structure comprising a plurality of short span wing segments spaced apart longitudinally of the fuselage with the forwardmost wing section being located forwardly of a

A short coupled airplane with variable wing lift comprising a fuselage that is free of the conventional tail assembly and has a wing structure comprising a plurality of short span wing segments spaced apart longitudinally of the fuselage with the forwardmost wing section being located forwardly of and above the level of the aircraft center of gravity, and the rearwardmost wing section being located rearwardly of, and below the level of the aircraft center of gravity. The wing sections at their projecting ends on either side of the airplane are connected by vertical airfoils each equipped with a rudder. The wing sections along their trailing edges are each equipped, on either side of the fuselage, with full span, vertically swingable members that combine the functions of flaps and elevators (and are thus called eleflaps). The eleflaps and rudders are respectively moved in unison to elevate, lower, and steer the aircraft. The aircraft is driven pusher style by a propeller driven motor located in vertical alignment with the aircraft center of gravity.

대표청구항 ▼

In an aircraft including a fuselage having a wing structure and power means for propelling same, the improvement wherein: said wing structure comprises: a plurality of wing sections of substantially equal lengths and wing chords extending transversely of the fuselage, with the forwardmost wing secti

In an aircraft including a fuselage having a wing structure and power means for propelling same, the improvement wherein: said wing structure comprises: a plurality of wing sections of substantially equal lengths and wing chords extending transversely of the fuselage, with the forwardmost wing section being located forwardly of, and above the level of, the center of gravity of the aircraft, and with the rearwardmost wing section being located rearwardly of, and below the level of, the aircraft center of gravity, said wing sections, on either side of the aircraft, being uniformly spaced apart longitudinally of the fuselage, with those of said wing sections positioned rearwardly of said forwarrdmost wing section, on either side of the aircraft, being disposed at a level below the level of the wing section immediately forward of same, and being spaced uniformly from same longitudinally of the fuselage a distance in the range of from approximately one half wing chord to approximately one wing chord, to be substantially free of the slipstream thereof along the length of same and draw air from the trailing Edge thereof, along the length of same, thereby straightening out forward wing trailing edge vortices for making the total wing lift of said wing sections in excess of that possible for said wing sections if functioning in air flight independently of each other, said wing sections, on either side of the air craft, having their projecting ends connected by vertically disposed air foils, said air foils being disposed in vertical planes that parallel the longitudinal axis of the fuselage, whereby wing tip vortices are reduced, each of the trailing edges of said air foils having a rudder pivotally connected thereto to pivot about vertically disposed axes, said wing sections each including on either side of the fuselage, and along the trailing edges of same, an eleflap mounted to pivot about an axis paralleling the respective wing sections, means for moving said eleflaps in unison in the same direction about their respective axes to increase and decrease wing section lifts for effecting vertical movement of the aircraft free of substantial departure from level flight, and means for moving said rudders in unison in the same direction about their respective axes to steer the aircraft.