Transport aircraft

FIELD: aviation.

SUBSTANCE: proposed aircraft has fuselage, two half-wings, jet engine, vertical and horizontal stabilizers and landing gear. Each half-wing has through passages of rectangular section which are parallel relative to each other along half-wing span. Each through passage has lower passage whose inlet hole is located on lower surface of half-wing; upper passage is narrower as compared with lower passage and its outlet hole is located on upper surface of half-wing.

EFFECT: increased lifting force of half-wing.

8 dwg

 

The invention relates to the field of aviation and can be used as a means of transport.

Known plane containing the fuselage, two thruster vertical lifting body which is placed in the front part of the fuselage, two thruster vertical lifting body which is placed in the rear part of the fuselage, vertical and horizontal stabilizers with rudders and height, located in the rear part of the fuselage, a jet engine mounted in the rear fuselage, landing gear, control mechanisms plane.

/Patent RF №2123960, CL 64 With 15/14, publ. 27.12.98, bull. No. 36/.

The disadvantage of this aircraft is the lack of capacity.

This disadvantage is caused by the aircraft structure.

Also known aircraft Kati 49 containing a fuselage, two polycryl small aspect ratio with large angles of sweep, jet engine located in the rear fuselage, vertical stabilizer with rudder, tricycle landing gear, control mechanisms. Wingspan 5,16 m, wing area of 11.25 m2extension wing of 2.38 m, takeoff weight 649 kg, maximum speed 499 km/h, the engine thrust 3,31 kN.

/Players, Aircraft unconventional schemes, trans. from English. M.: Mir, 1991, p.86-87, RIS/.

Known JG is t "Katya 49", as the closest to the technical essence and the achieved beneficial results, taken as a prototype.

The disadvantage of the plane, taken as a prototype, is the low capacity.

This disadvantage is caused by the design of polycrylic.

The aim of the present invention is to increase the lift of the aircraft.

The objective according to the invention is ensured by the fact that two polycryl replaced two polycrylene, inside of which is installed through the channels of rectangular cross section placed parallel to each other along the span polycryl, the longitudinal axis of each of which is perpendicular to the bottom surface polycryl, each end-to-end channel includes a bottom channel, the inlet of which is located on the bottom surface polycryl, top channel, made in the form of a longitudinal slit, the outlet of which is located on the upper surface polycryl and the yield of the lower channel is connected to the input of the upper channel.

The invention is illustrated by drawings, where Fig. 1 shows a General view of the transport plane, in Fig. 2 is a view of the transport aircraft from the front, Fig. 3 is a view of the transport aircraft from above, Fig. 4 is a view of the transport plane from below, Fig. 5 General view polycryl, Fig. 6 - section a-a of Fig. 5, in Fig. 7 - device squoze what about the channel, in Fig. 8 is a diagram of additional lifting force on the wing transport aircraft.

Transport aircraft includes a fuselage 1 having the flight deck and cargo compartment in the back to which is attached a vertical 2 horizontal and 3, 4 stabilizer with rudder 5 and elevators 6, 7. Inside the rear fuselage mounted jet engine 8 having an inlet 9. Bottom attached to the fuselage and landing gear, containing front support wheel 10 and the rear main wheels 11. In the front part of the fuselage on each side, according to the scheme Srednaya fixed two polycryl 12, 13, having the ailerons 14, 15, the flaps 16, 17 and the slats 18, 19. Within each polycryl installed through channels of rectangular cross section placed parallel to each other along the span polycryl. The longitudinal axis of each of the channels perpendicular to the bottom surface polycryl. Each end-to-end channel includes a bottom channel 20, the inlet of which is located on the bottom surface polycryl, and the upper channel 21 of the same shape but of smaller cross-section, the outlet of which opens onto the upper surface of polycryl. The output of the lower channel is connected to the input of the upper channel. Between end-to-end channels in polacrilex placed fuel tanks 22. The opposite wall of each lower channel area is awny each other. The front wall of the upper channels is larger in area than the rear wall.

Work transport aircraft.

When moving transport aircraft under the action of the thrust jet engine 8 air flow flows around airfoils of polycrylic 12, 13, creating a lifting force on them Ryaimed up and holding transport plane at a certain height. The air stream moving at a velocity V and an ambient polycryl, is divided into two parts. The upper flow, moving along the upper surface polycryl, is way larger than the path traversed by the lower flow on the lower surface polycryl. As a consequence, the speed of the air flow on the upper surface polycryl more, and speed on the bottom surface polycryl less, otherwise on the upper surface there would be a vacuum, which is impossible. Therefore, the air pressure on the upper surface of polycryl less, and on the lower surface of polycryl more. The pressure difference is lifting force Rypolycryl. Simultaneously, the portion of the air flow flowing bottom surface polycryl falls into the lower channels 20, and then through the upper channel 21 extends on the upper surface of polycryl. As a section of the upper channel 21 is smaller than the cross section of the lower channels 20, the air in nigricana moves slower and in the upper channels is moving at a faster speed which is greater, the smaller the cross-section of the upper channels compared to the cross-section of the lower channels. As a result, the air pressure in the lower channels increases, and in the upper channels is reduced. The air flow produces a pressure on the side walls and shoulders dnish lower channels 20. The forces F and F1acting on the side walls of the bottom channels, equal in magnitude, opposite in direction and cancel each other out, as the wall on which they act on the square are equal. Forces Fdacting on the shoulders of the bottom of each lower channel 20, no balanced to provide additional lifting force Rbeats(Fig). In addition, the air flow moving in a narrow upper channel 21, with the high speed comes on the top surface polycryl and increases the speed of movement of the air stream flow over the upper surface of polycryl, thereby further reducing the pressure on the upper surface of polycryl and creating additional lift force RN1.

Thus when flying transport aircraft in addition to the lifting force created by movement in the air flow wing with aerodynamic profile, create additional lift force due to the acceleration of movement of the air flow on the upper surface of the floor of the snout and due to the additional pressure on the shoulders of the bottom of each lower channel during the passage of the air flow through the channels.

The positive effect of increasing the lift of the aircraft, increasing the amount of cargo transported per trip, more stable position of the aircraft in flight at supercritical angles of attack, as in the case of separation of the main flow from the upper surface of the wing last will objectsa air flow coming through the channels.

Transport plane containing the fuselage with the pilot and cargo compartments, two polycryl attached to the fuselage, vertical and two horizontal stabilizer with rudder and elevators, secured in the rear part of the fuselage, a jet engine mounted in the fuselage in his back, landing gear, control mechanisms, characterized in that within each polycryl made through channels of rectangular cross section placed parallel to each other along the span polycryl, the longitudinal axis of each of which is perpendicular to the bottom surface polycryl, each end-to-end channel includes a bottom channel, the inlet of which is located on the bottom surface polycryl the upper channel shaped longitudinal slit, the outlet of which is located on the upper surface polycryl and the yield of the lower channel is connected to the input of the upper channel.



 

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