RU2288137C1 - Aircraft - Google Patents

Abstract

FIELD: aviation.

SUBSTANCE: proposed aircraft has fuselage, engines, control cabin, landing gear and tail unit. Chute-type wings are mounted underneath the fuselage. Turbo-jet engines are mounted on front upper surface of wings; during operation of these engines maximum amount of waste gases is passed through wings forming rarefaction inside them and lift force from beneath.

EFFECT: formation of additional lift force.

3 dwg

Description

The invention relates to aviation.

Domestic and foreign aircraft designers in the construction of aircraft use several methods to obtain an increase in the lift force of the wings:

a) on the wings installed means of mechanization - slats, flaps, flaps;

b) the upper surface of the wings is blown with exhaust gases from the engines;

c) the maximum amount of air is passed through the wings (arched wings).

Famous aircraft with an arched wing of the American aircraft designer W. Custer. The description of the aircraft is given in the book of the author P. Bowers "Aircraft of unconventional schemes", M .: Mir, 1993, p.137-139, Fig. 6.26; 6.27; 6.28. W. Custer suggested passing the maximum amount of air through the arched wing. The disadvantages of the aircraft are a small increase in lift, a large drag, a small aerodynamic quality.

Known aircraft An-72 aircraft designer O.K. Antonov. Drop-shaped wings are located on top of the fuselage. The wings are mechanized at the trailing edge. The description of the aircraft is given in the book of the author N.V. Yakubovich, "All aircraft of O.K. Antonov," M .: Astrel / AST, 2001, p.176-182.

To increase the lift force of the wings, the aircraft designer suggested blowing flaps with exhaust jets from the turbojet engines using the Coanda effect (p.176, 177 of the book). Drawings of the aircraft in three projections are shown on the back page of the cover. The disadvantages of the aircraft are a large drag, a small increase in lift, since not all of the upper surface of the wings is blown by exhaust gases from the engines, but only a part of them - at the place of installation of the flaps. Aircraft performance data are given on page 182.

The present invention will allow to obtain a significant increase in the lifting force of the wings of the aircraft.

To achieve this technical result, the proposed aircraft uses tray wings, which are installed at the bottom of the fuselage. Turbojet engines are installed on the upper surface of the front of the wings.

Distinctive features of the proposed aircraft from the An-72 aircraft are:

a) the installation of tray wings from the bottom of the fuselage;

b) turbofan engines are installed on the front surface of the wings;

c) the maximum amount of exhaust gases from the engines is driven through the tray wings.

The proposed aircraft is illustrated in figures 1-3.

Figure 1 is a side view of the aircraft.

Figure 2 is a front view of the aircraft.

Figure 3 is a top view of the aircraft.

The design of the aircraft includes:

1 - fuselage

2 - tray wings

3 - engines

4 - control cabin

5 - chassis

6 - tail.

When the turbojet engines are running, during the take-off, flight and landing of the aircraft, the exhaust gases from the engines will be driven through the tray wings. The movement of exhaust gases in the tray wings will be accompanied by an increase in speed, a decrease in pressure and density. A rarefaction is created inside the wings, and a lift is generated from below the wings.

Claims (1)

Aircraft, including the fuselage, engines, control cabin, landing gear, tail unit, characterized in that, in order to create an additional increase in lifting force, tray wings are installed at the bottom of the fuselage, on the front upper surface of which there are turbojet engines, during which the maximum amount of exhaust gases it is driven through the trough wings, forming a vacuum inside the wings, and from below - lifting force.

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