An aircraft includes a fuselage with a circular airfoil body supported thereabove on a vertical drive shaft mechanism. The airfoil body includes an upper disk forming an upper surface of the body and a lower disk forming a lower surface of the body in which the upper and lower disks are supported at a fixed spacing on the vertical drive shaft mechanism for counter-rotation. Vanes are supported in both the upper and lower disks which are movable between a takeoff position in which the vanes are s...

The aircraft has a main body 1 and a pair of sub bodies 4 and 5 positioned substantially in parallel with the main body 1 and respectively in both of the left and right sides of the main body 1. A canard 3 and main wings 8 and 9 each have a central portion fixed to the main body 1 and portions fixed respectively to the sub bodies 4 and 5, near left and right ends of the wings. Engines 6 and 7 are respectively mounted on outer surfaces of the sub bodies 4 and 5. The sub bodies 4 and 5 are thinner...

A supercritical wing section having a large average leading edge radius of curvature, followed on the upper surface by a reduction in curvature and then a knee, or region of positively increased curvature, at between 3% and 13%, preferably 5% to 10%, chord the region of increased curvature being followed by a region of low curvature extending for 30% to 90% of the chord, whereby in use of the wing at low speeds the peak velocity and peak suction are contained, in use thereof at intermediate spee...

An aircraft comprising a generally annular wing structure surrounding a circular central structure to form an annular air duct, a pair of fuselages extending longitudinally at opposite sides of the aircraft, and rotor blades extending radially across the air duct from the central structure and rotatable relative to the central structure around the duct for inducing airflow through the duct to effect a lift on the aircraft. The annular wing structure consists of forward and rear wings forming air...

An aircraft 1 comprising interchangeable wings 5 detachedly connected to a fuselage 3, each wing 5 containing the fuel and flight systems 13,15 for engines 7 mounted to the wings 5, so that the fuselage 3 need contain no flight systems, simply a "bus" 23 for communication and the transfer of data between the wings.

An aircraft includes a cover wall without a door so that passengers cannot go back and forth between a flight deck and a cabin. A device for indicating urgent closing is provided in one of the flight deck and cabin, and a closing control part which closes information machines and equipment so that information regarding activity of the passengers in the cabin does not transmit to the flight deck when the urgent closing indication means indicates an urgent closing state. A device for communicating...

This invention relates to an aircraft having three lift surfaces, and precisely a main wing lift surface located in an intermediate position of the aircraft and two less extended lift surfaces positioned, respectively, in a position ahead of the main wing surface and astern thereof.

An aircraft capable of sustained flight including a fuselage and a spiral-formed flat-section right hand and left hand wing positioned in generally horizontally opposing relation along either side of the fuselage. Each wing is formed of an elongated flat panel or plate having generally parallel leading and trailing edges, the length of the panel being substantially greater than its width, the width being substantially greater than its thickness. The forward and rearward ends of each wing are mov...

The object of the invention is to provide an aircraft which is capable of being enhanced in speed and preventing a crash even when a propeller does not operate to provide thrust to the aircraft. A wing which is an envelope made of a flexible material is comprised on an upper side of a aircraft body, and is filled with a gas with a specific gravity less than that of air. Moreover, the aircraft body is provided with a propeller.

An aircraft has a geometrically transformable pilot compartment, and further parts including a fuselage boom, wings and tail, wherein at least one of these parts are movable between an unfolded position in which it is ready for flying and a folded position in which it is accommodated in the pilot compartment.