Aircraft

Abstract

An aircraft that enables an efficient and safe transition from hovering to level-flight. The aircraft according to the present invention includes a lift generating part, a thrust generating part capable of flying and hovering, a connecting part that displaceably connects the lift generating part and the thrust generating part so that the lift generating part can maintain a positive angle of attack with respect to the flying direction at least at the time of ascending. The lift generating part is a wing part having a main surface, and at least at the time of hovering, a propulsion direction by the thrust generating part is along a direction obliquely intersecting the vertical direction. At least at the time of hovering, the propulsion direction and the main surface form an obtuse angle. At least at the time of hovering, the propulsion direction is along the vertical direction.

1 .- 48 . (canceled) 
     
     
         49 . An aircraft including:
 a lift generating part,   a thrust generating part capable of flying and hovering,   a connecting part that displaceably connects the lift generating part and the thrust generating part so that the lift generating part can maintain a positive angle of attack with respect to the flying direction at least at the time of hovering.   
     
     
         50 . The aircraft as set forth in  claim 49 ,
 wherein the lift generating part is a wing part,   the thrust generating part is a rotary wing,   a central axis of rotation of the rotary wing and a chord line of the wing part form a predetermined angle, and   the connecting part connects the lift generating part and the thrust generating part so that the predetermined angle can maintain a predetermined range of at least 105 degrees or more and less than 180 degrees at least during take-off and landing and during hovering.   
     
     
         51 . The aircraft as set forth in  claim 50 ,
 wherein the connecting part connects the lift generating part and the thrust generating part so that the predetermined angle can maintain a predetermined range of 105 degrees or more and 150 degrees or less at least during take-off and landing and during hovering.   
     
     
         52 . The aircraft as set forth in  claim 49 ,
 wherein the connecting part connects the lift generating part and the thrust generating part so that the predetermined angle is approximately 180 degrees during flight.   
     
     
         53 . The aircraft as set forth in  claim 50 ,
 wherein the connecting part connects the lift generating part and the thrust generating part so that the predetermined angle is approximately 180 degrees during flight.   
     
     
         54 . The aircraft as set forth in  claim 51 ,
 wherein the connecting part connects the lift generating part and the thrust generating part so that the predetermined angle is approximately 180 degrees during flight.   
     
     
         55 . A aircraft including:
 a lift generating part,   a thrust generating part capable of flying and hovering,   a connecting part that displaceably connects the lift generating part and the thrust generating part so that the lift generating part can maintain a positive angle of attack with respect to the flying direction at least at the time of ascending.   
     
     
         56 . The aircraft as set forth in  claim 55 ,
 wherein the lift generating part is a wing part having a main surface, and   at least at the time of hovering, the propulsion direction by the thrust generating part is along a direction obliquely intersecting the vertical direction.   
     
     
         57 . The aircraft as set forth in  claim 56 ,
 wherein at least at the time of hovering, the propulsion direction and the main surface form an obtuse angle.   
     
     
         58 . The aircraft as set forth in  claim 57 ,
 wherein at least at the time of hovering, the propulsion direction is along the vertical direction.   
     
     
         59 . An aircraft including:
 a lift generating part,   a thrust generating part capable of flying and hovering,   a connecting part that displaceably connects the lift generating part and the thrust generating part so that the lift generating part can maintain a positive angle of attack with respect to the flying direction at least at the time of ascending.   
     
     
         60 . The aircraft as set forth in  claim 59 ,
 wherein the lift generating part is a wing part having a main surface, and   at least at the time of ascending forward, the propulsion direction by the thrust generating part is along a direction obliquely intersecting the vertical direction.   
     
     
         61 . The aircraft as set forth in  claim 60 ,
 wherein at least at the time of ascending forward, the propulsion direction and the main surface form an obtuse angle.   
     
     
         62 . The aircraft as set forth in  claim 61 ,
 wherein at least at the time of ascending forward, the propulsion direction is along the vertical direction.   
     
     
         63 . The aircraft as set forth in  claim 61 ,
 wherein at least at the time of ascending forward, the propulsion direction is directed obliquely forward.   
     
     
         64 . The aircraft as set forth in  claim 59 ,
 which includes at least a plurality of propellers, and   ascends forward by adjusting the output.   
     
     
         65 . The aircraft as set forth in  claim 60 ,
 which includes at least a plurality of propellers, and   ascends forward by adjusting the output.   
     
     
         66 . The aircraft as set forth in  claim 61 ,
 which includes at least a plurality of propellers, and   ascends forward by adjusting the output.   
     
     
         67 . The aircraft as set forth in  claim 62 ,
 which includes at least a plurality of propellers, and   ascends forward by adjusting the output.   
     
     
         68 . The aircraft as set forth in  claim 63 ,
 which includes at least a plurality of propellers, and   ascends forward by adjusting the output.