RU2207303C2 - Flying vehicle-parastat - Google Patents

Abstract

FIELD: flying vehicles without power plants. SUBSTANCE: proposed flying vehicle has lower aerodynamic wing, top hermetic wing, first lines, second lines and suspension system. Envelope of upper wing is filled with helium. Second lines are used for connecting the lower and top wings. Flying vehicle is provided with controllable joints for emergency release of top wing. EFFECT: enhanced safety; extended technological capabilities; improved flight characteristics. 5 dwg

Description

 The invention relates to aircraft, in particular for soaring flights in ascending streams, and can be used in aero chemical works, observations of the terrain, in training novice pilots, etc.

 Known planning balloon (Patent 2104214, class B 24 V 1/40), containing the first aerostatic shell, the cavity of which is filled with helium, the second aerostatic shell, gas burners to fill the second shell with warm air, the suspension system and slings of the suspension system to the aerostatic shell .

 The disadvantage of this balloon is the creation of lift only in the aerostatic way (the device is lighter than air), low controllability and flight safety.

 The closest in technical essence is a paraglider (see "Designing, manufacturing and testing of a paraglider", Ivanov PI, Moscow-Feodosia, 1998, p. 1-5).

 The paraglider contains an aerodynamic soft wing, sling and suspension systems.

 The disadvantage of this device is the filling of the soft wing with a free flow of air, the possible folding of the wing, insufficient safety, use only for sports purposes.

 The proposed invention solves the problem of flight safety, expanding the technological capabilities of the device and improving flight performance data.

 This is achieved by partial or complete compensation of the take-off mass of the aircraft by the aerostatic method and the further creation of lift by the aerodynamic method in motion. For this purpose, the parastat aircraft is equipped with an upper airtight wing filled with light gas with helium in a polyester shell 3.5–35 μm thick with metallization inside and connected to the lower wing using a sling system with emergency connectors.

 An essential feature of a wing, the cavity of which must be filled with helium, is the presence of a shell. The presence of emergency connectors is essential for achieving a technical result (flight safety). When using a parastat aircraft in aircraft chemical operations in an unmanned version at low altitude, the presence of emergency connectors is optional.

 The upper airtight wing is designed to create lifting force in an aerodynamic way when it is flowed around by an incoming air stream and in an aerostatic way to partially compensate for the flight weight, to prevent folding of the lower wing due to the tension of the slings of the parastat aircraft. This ensures a safe flight.

 The use of the aerodynamic shape of the profile of the wing of the carrier plane together with the aerostatic method of creating lift gives an additional increase in lift in motion, and this, in turn, improves the flight performance of the aircraft, such as take-off and run lengths, take-off and landing distances, payload and economic data.

The invention is illustrated by drawings on which are shown:
in FIG. 1 - dynamics of the movement of the parastat aircraft system in the Earth and high-speed coordinate systems (NSC) with the axes (XgYg) and (X. U.);
in FIG. 2 - parastat aircraft, front view, with upper wing 1, lower wing 2 and sling system 3;
figure 3 - the accelerator 9, the device and principle of operation, the free ends of the fastening of the main 3 and emergency slings 6;
in FIG. 4 - emergency release system on wing 2, with locks 4 and emergency slings 6;
figure 5 is a fragment of the upper sealed wing 1 with a flap type valve of polyester film 5, filament ribs 7 and hard light armor 8 inserted into the double lower surface (possible mesh structure of ribs 7).

 Aircraft - Parastat contains two aerodynamic planes; the upper sealed wing 1 (FIGS. 2 and 5) filled with helium, and the lower two-winged wing 2 (FIGS. 2 and 4), the sling suspension system 3 (FIGS. 2 and 3) of the emergency line 6 (FIGS. 3 and 4) and emergency release locks 4 of the upper wing (Fig. 4), the accelerator 9 (Fig. 3), the free ends of the main 3 and emergency 6 lines, the filling valve 5 (Fig. 5) of the upper airtight wing.

 The parastat aircraft operates as follows.

(фиг.3), который изменяет направление и величину подъемной силы Y (фиг.1) и скорости системы летательного аппарата-парастата

(фиг.1) путем изменения угла атаки α (фиг.1 и 3).After transportation to the launch site in a relatively small volume of arbitrary shape and light weight, the parastat is laid out on the ground for inspection and preparation for launch. When the pilot is ready in the suspension system, he pulls the front main slings 3 (Fig. 3) to a maximum to reduce the installation angle (Fig. 3) and the angle of attack (Fig. 1). Then the aircraft technician (assistant) fills the sealed wing 1 (Fig.2 and 5) with helium through the valve 5 (Fig.5), holding the structure by the front main slings. Gradually releasing the front slings, the aircraft achieves a smooth rise in the airtight wing 1 (Fig. 2), and then the two-wing wing 2 (Fig. 2). The parastat aircraft system occupies a vertical position of readiness for launch. The minimum angle of attack α (Fig. 1) while creating a pilot using the accelerator 9 (Fig. 3), the main means of speed control

(figure 3), which changes the direction and magnitude of the lifting force Y (figure 1) and the speed of the parastat aircraft system

(figure 1) by changing the angle of attack α (figures 1 and 3).

 Further control of the parastat is similar to controlling a paraglider using control lines and an accelerator, taking into account the absence of wing folding.

 In an emergency case, depressurization of the upper wing in flight to make an emergency landing on the lower wing, the lock 4 (Fig. 4) is disengaged by pulling the locking pin from the loops of the main lines with the emergency control line 6 (Fig. 4) by tensioning the free ends of the suspension system 6 (Fig. 3) )

 The effect is that the parastat aircraft has high economic characteristics: in motor flight, which allows the use of low-power domestic engines for aircraft operations; in non-motorized flight, which allows the use of towing or the use of wind power for the production of aerial work; has a high level of flight safety; in an unmanned towing version at aero chemical works. The design is greatly simplified due to the lack of emergency connectors and an accelerator; work in the calm can be done directly by the farmer, which is very beneficial for him.

Claims (1)

 A parastat aircraft containing a lower aerodynamic soft wing, first slings and a suspension system, characterized in that it is equipped with a top airtight wing, the shell of which is filled with helium, second slings designed to connect the aforementioned upper wing to the lower one, and controlled connectors designed to emergency uncoupling of the upper wing.

Images