JPWO2020026847A1 - Paraglider - Google Patents

Abstract

To provide a paraglider that can easily take off by generating lift in the canopy by generating airflow from the front to the rear of the upper surface of the canopy while raising up without being helped by the force of the wind. The purpose. The present invention is a paraglider, which is a canopy that can be expanded by taking in air inside, a blower that blows air into the canopy, a blower pipe that guides air discharged from the blower into the canopy, and air inside the canopy. Is provided on the upper surface of the canopy with a jet port that blows out from the front to the rear.

Description

The present invention relates to a paraglider, and more specifically to a paraglider having a propulsion unit.

Paragliding is known as a popular sport in sky sports. Paragliders generally perform an operation to raise the canopy, so-called rise-up, while inflating the canopy in a wing shape by inflowing air from the opening provided at the leading edge into the canopy in a crushed state, and then on the mountain. It is a sport that runs down a slope, takes off, and glides. Basically, a paraglider takes off while descending on a mountain slope or the like, and cannot take off from a flat ground toward the sky.

Therefore, as a paraglider that can take off even from flat ground, a paraglider equipped with a propulsion unit is used. As a paraglider equipped with a propulsion unit, a propeller type motor paraglider that rotates a propeller by a motor and flies by using the propulsive force is known. Since the propeller type motor paraglider is equipped with a motor, a propeller, a guard to prevent contact with the propeller, etc., the weight of the propulsion unit excluding the canopy part is about 20 kg even if it is light. The propeller-type motor paraglider also takes off while moving forward after raising up, but if the wind is weak and the wind power from the forward direction cannot be used, it will take off while carrying 20 kg or more of equipment on its back. It's hard because you have to do the operation.

Further, a paraglider disclosed in Patent Document 1 is known as another paraglider to which a propulsion unit is attached. In the paraglider, a horizontal pipe is arranged along the upper part of the front edge of the canopy, and the air sent from the blower is blown out from the jet port provided in the horizontal pipe. By blowing air from the jet port, an air flow is generated from the front to the rear of the upper surface of the canopy. When an air flow is generated in this way, a pressure difference is generated between the upper surface of the canopy and the lower surface of the canopy. This creates lift in the canopy, allowing the paraglider to fly. However, in the state where the canopy is spread on the ground, the paraglider does not generate lift even if air is blown from the jet port. In order to generate lift in the canopy, it had to rise up on its own by using the wind and / or by running up.

Utility Model Registration No. 32077443

The propeller type motor paraglider and the paraglider described in Patent Document 1 had to be raised up by utilizing the wind and / or running up. At that time, depending on the wind conditions, the canopy did not stand up properly and the run-up was difficult, making it difficult to rise up.

The present invention has been made in view of the problems in the prior art, and the canopy is made by raising the rise without being affected by the wind condition and generating an air flow from the front to the rear of the upper surface of the canopy. The purpose is to provide a paraglider that can generate lift and take off easily.

In order to achieve the above object, the present invention comprises at least the following configurations or carries out procedures.

The paraglider according to one aspect of the present invention is a paraglider, which is a canopy that can be expanded by taking in air inside, a blower that blows air into the canopy, and a blower that guides air discharged from the blower into the canopy. It is provided with a pipe and a spout for blowing air inside the canopy from the front to the rear on the upper surface of the canopy.
With such a configuration, the rise-up can be performed without being assisted by the force of the wind, and lift can be generated in the canopy by generating an air flow from the front to the rear of the upper surface of the canopy, so that the canopy can be easily taken off.

More preferably, the jet is located at the leading edge on the upper surface of the canopy.
With such a configuration, the jet from the jet port can be more reliably flowed from the front edge of the canopy in the rear direction. As a result, lift can be efficiently generated in the canopy.

More preferably, a plurality of jet ports are arranged in the width direction of the canopy.
With such a configuration, the jet can be distributed on the canopy in a well-balanced manner.

More preferably, the number of jets arranged on the center side of the canopy in the width direction of the canopy is larger than the number of jets arranged on both sides of the canopy.
With such a configuration, the efficiency of lift generated in the paraglider can be increased. This is due to the shape of the canopy in flight. During flight, both sides of the canopy are lower than the central side and are arcuate. Therefore, when jets flow from both sides of the canopy, lift acts diagonally upward. On the other hand, when the jet flows from the center side of the canopy, the lift works almost directly upward. Therefore, the efficiency of lift generated in the canopy is higher when the jet ports are provided on the central side than when the jet ports are provided on both sides.

More preferably, the canopy is characterized by including a rectifying unit that rectifies the air sent from the inside of the canopy to the jet port.
With such a configuration, the jet can flow more reliably and stably to the rear of the canopy.

More preferably, the rectifying section is formed along the shape of the upper surface of the canopy.
With this configuration, the air in the canopy flows through the rectifying section along the shape of the upper surface of the canopy, so that the direction of air flow is stable. As a result, the jet flow blown out from the jet port flows along the shape of the upper surface of the canopy, and the separation of the air flow can be suppressed.

More preferably, the number of blower pipes is two, and each of the blower pipes is separately connected to both ends of the canopy.
With this configuration, when the canopy is raised, air enters from both ends of the canopy, so that the canopy stands up well. Further, as compared with the case where there is only one blower pipe, the pressure loss is reduced by increasing the cross-sectional area of the flow path.

More preferably, the cross-sectional shape of the blower pipe is elliptical, and the major axis is arranged in the front-rear direction with respect to the traveling direction.
With this configuration, the projected area on the front side to which the wind pressure of the external airflow is applied becomes smaller than when the cross-sectional shape is a perfect circle, so that the air resistance can be reduced during flight.

More preferably, in order to hold the shape of the blower pipe in an elliptical shape, a holding member is provided inside the blower pipe.
With such a configuration, the shape of the blower pipe can be maintained even while air is being sent to the canopy through the blower pipe.

A canopy that can be expanded by taking in air inside, a blower that blows air into the canopy, a blower pipe that guides the air released from the blower into the canopy, and the air inside the canopy from front to back on the upper surface of the canopy. A flight method using a paraglider equipped with a jet port that blows out in a direction, in which the canopy is expanded by sending air discharged from a blower into the canopy, and the canopy is expanded and then the canopy is expanded. A flight method including a step of blowing the air taken in from the front to the rear on the upper surface of the canopy from the injection port.
With such a configuration, the rise-up can be performed without being assisted by the force of the wind, and lift can be generated in the canopy by generating an air flow from the front to the rear of the upper surface of the canopy, so that the canopy can be easily taken off.

As described above, according to the present invention, it is easy to raise the canopy without being assisted by the force of the wind and to generate lift in the canopy by generating an air flow from the front to the rear of the upper surface of the canopy. You can take off.

It is a perspective view of the paraglider 100 which concerns on 1st Embodiment of this invention. It is a side view which shows the vicinity of the blower 150 of the paraglider 100 which concerns on 1st Embodiment of this invention. It is a rear view which shows the vicinity of the blower 150 of the paraglider 100 which concerns on 1st Embodiment of this invention. It is sectional drawing of the blower pipe 160 of the paraglider 100 which concerns on 1st Embodiment of this invention. It is a top view of the paraglider 100 which concerns on 1st Embodiment of this invention. It is a perspective view which shows the vicinity of the jet port 111 of the canopy 110 of the paraglider 100 which concerns on 1st Embodiment of this invention. It is a figure which shows the internal structure of the canopy 110 of the paraglider 100 which concerns on 1st Embodiment of this invention. It is sectional drawing of the canopy 110 of the paraglider 100 which concerns on 1st Embodiment of this invention. It is a perspective view which shows the vicinity of the jet port of the canopy 210 of the paraglider which concerns on the 2nd Embodiment of this invention. It is an enlarged view which shows the jet port of the canopy 210 of the paraglider which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the internal structure of the canopy 210 of the paraglider which concerns on 2nd Embodiment of this invention.

Hereinafter, the present invention will be specifically described with reference to the drawings. It should be noted that the embodiments described below are merely examples of specific examples for carrying out the present invention, and do not limit the interpretation of the present invention. Further, the center side of the paraglider canopy according to the present invention is a range from the center to about 1/4 in the right direction and from the center to about 1/4 in the left direction in the width direction, and both sides of the canopy are defined as. It is the range from both ends of the canopy to about 1/4 toward the center.

<First Embodiment>
[Overview of paraglider]
FIG. 1 is a perspective view of a paraglider 100 according to a first embodiment of the present invention. The paraglider 100 includes a canopy 110, a line 120, a riser 130, and a harness 140. In addition, a blower 150 and a blower pipe 160 for blowing air into the canopy 110 are provided. The air sent out from the blower 150 enters the inside of the canopy 110 through the blower pipe 160. As a result, the canopy 110 swells and the paraglider 100 can be raised. When the air is continuously blown by the blower 150 after the rise-up, the air inside the canopy 110 is blown out from the jet port 111.

The paraglider 100 does not have an air intake at the leading edge of the canopy, which is an opening for taking in outside air inside the canopy 110, unlike the existing general ones. This is because the structure is such that the canopy 110 is expanded by sending air into the canopy 110 by the blower 150 to keep the canopy 110 in a wing shape, which is unnecessary.

[About blowers and blowers]
Next, the blower 150 and the blower pipe 160 will be described in detail. FIG. 2 is a side view showing the vicinity of the blower 150 of the paraglider 100 according to the first embodiment of the present invention, and FIG. 3 is a back view showing the vicinity of the blower 150 of the paraglider 100 according to the first embodiment of the present invention. It is a figure. The blower 150 is fixed behind the harness 140, and a fuel tank 170 for storing fuel in the blower 150 is fixed under the seat of the harness 140.

The blower 150 blows air into the canopy 110 via the blower pipe 160. More specifically, at both ends of the canopy 110, one end of the blower pipe 160 is connected and the other end is connected to the blower 150.

At the time of rise-up, by starting the blower 150, air is blown into the inside from both ends of the canopy 110 in a state of being spread on the ground through two blower pipes 160. As a result, the canopy 110 stands up well, so that the rise-up can be performed even in a windless environment.

Further, even if the canopy 110 is crushed by eddy or the like during flight, the wing shape of the canopy 110 can be restored by sending air by the blower 150.

A blower is preferable as the blower 150. The blower is relatively safe because there are no rotating members such as propellers in the exposed parts. It also has the advantages of being lightweight and compact. The maximum air volume is preferably about ^{25 m 3 / min.} However, it is sufficient to select the one with specifications and performance according to the flight weight and the equipment used in a timely manner.

Here, by arranging the blower pipes 160 at both ends of the canopy 110, the air from the blower 150 is sent in a well-balanced manner, and the pressure loss of the blower flow is reduced as compared with the case where there is only one blower pipe 160. Although it was reduced, the number of blower pipes 160 is not limited to two. For example, if it is desired to simplify the structure and reduce the risk of failure, a structure in which only one blower pipe 160 is attached to the center may be used.

Further, the blower pipe 160 is made of a cloth made of nylon or polyester fiber, which is a material that does not easily leak air, and an elliptical shape is suitable for the shape. FIG. 4 is a cross-sectional view of the blower pipe 160 of the paraglider 100 according to the first embodiment of the present invention. In FIG. 4, the cross-sectional shape of the blower pipe 160 is an elliptical shape, and the major axis is arranged in a direction in which the major axis is in the front-rear direction with respect to the traveling direction. A holding member 161 is attached to the inside of the blower pipe 160. When air is blown from the blower 150 to the canopy 110 through the blower pipe 160, the cross-sectional shape of the blower pipe 160 approaches a circular shape due to the internal pressure, but is held in an elliptical shape by the holding member 161. The holding member 161 may be made of the same material as a part of the blower pipe 160, but may be provided separately.

[About the canopy and jet port]
FIG. 5 is a plan view of the paraglider 100 according to the first embodiment of the present invention. In FIG. 5, the air inside the canopy 110 is blown out from the jet port 111, and the blown jet J is indicated by a single point chain point. The jet J flows from the front to the rear along the upper surface of the canopy 110. Lift J is generated in the canopy 110 by jet J. The canopy 110 is made of a light and durable chemical fiber such as nylon or polyester so that the air sent into the canopy 110 does not leak from other than the jet port. Further, the canopy 110 is configured by arranging dozens to dozens of cells in parallel.

FIG. 6 is a perspective view showing the vicinity of the jet port 111 of the canopy 110 of the paraglider 100 according to the first embodiment of the present invention. The jet port 111 is provided in parallel with the leading edge portion on the upper surface of the canopy 110. Further, the jet port 111 includes a rectifying unit 112 for adjusting the flow of the blown air. The jet port 111 and the rectifying unit 112 are not provided at the joint between the cells constituting the canopy 110.

The jet port 111 is finely divided by a partition, and a plurality of jet ports 111 are arranged adjacent to each other. The size of one jet port 111 is about 3 mm to 10 mm in width and about 3 mm to 10 mm in height, and the cross-sectional shape is quadrangular or triangular. Each jet port 111 may be a tapered nozzle. When the jet port 111 is a nozzle, the speed of the jet J can be improved. Although the jet port 111 is relatively narrow, the Coanda effect entrains the air around the jet J, so that a larger air volume than the jet J is induced downstream of the jet port 111.

Further, since the jet port 111 is made of a cloth-like material such as nylon, it is easy to fly by the wind and there is a concern about fluttering, but since it is divided into small pieces and made into a bag shape, fluttering can be suppressed. ..

Further, since the outlet opening area of the jet port 111 is small, it is difficult for the air inside the canopy 110 to be ejected unless the ram pressure inside the canopy 110 is higher than the outside air pressure. Therefore, when the canopy 110 is inflated, the blade shape is maintained in a state where the internal pressure is reduced to some extent (a state in which the air pressure is substantially equal to the external air pressure) even if air is not sent from the blower 150.

The jet port 111 is made of a cloth-like material such as nylon. Since the canopy 110 and the blower pipe 160 are also made of a cloth-like material, the paraglider 100 can be stored compactly by folding or rolling them.

The jet ports 111 are arranged on the canopy 110 in the range of about 100 to 1000 depending on the flight weight, the equipment used, and the area of the jet port 111. It is not necessary to provide the jet port 111 in all the cells, and there may be a cell that does not have the jet port 111. In this case, it is preferable to arrange the jet outlets 111 so as to be provided more toward the center side of the canopy 110 than on both sides of the canopy 110. This is because it is more efficient in terms of lift generated in the canopy 110 if the jet port 111 is provided in the cell on the central side. The reason is that when the canopy 110 is raised and spreads above the operator's head, the canopy 110 has an arc shape when viewed from the front, and both sides of the canopy 110 are lower than the center side. In this case, the lift generated by the jets J from both sides of the canopy 110 acts perpendicular to the upper surface of the wing and diagonally upward when viewed from the front. On the other hand, when the jet J flows from the center side of the canopy 110, the lift works almost directly upward because the center of the wing is in the horizontal position. That is, the lift efficiency generated in the canopy 110 is higher when the jet port 111 is provided on the center side than when the jet port 111 is provided near both ends.

FIG. 7 is a diagram showing the internal structure of the canopy 110 of the paraglider 100 according to the first embodiment of the present invention. The rectifying unit 112 has a length of about 5 cm to 10 cm and is arranged along the front edge of the upper surface inside the canopy 110.

FIG. 8 is a cross-sectional view of the canopy 110 of the paraglider 100 according to the first embodiment of the present invention. The cross-sectional shape of the canopy 110 is round at the front and tapered toward the rear, and the lower surface is flat. So to speak, it is shaped like a teardrop. By providing the jet port 111 on the upper side of the canopy at a place having a large curvature, the jet J can bend greatly along the outer surface of the canopy, and a large lift can be obtained. In the airfoil, such a shape is set because a large negative pressure is generated in the upper front side having a large curvature and a lift in the direction perpendicular to the blade surface can be obtained.

In order to increase the strength of the canopy 110, the inside of the canopy 110 is divided into several cells by ribs 113. The rib 113 is provided with a connecting hole 114 in order to guide the air sent from the blower 150 to the jet port 111. Since air can move through the connecting hole 114, the ram pressures of each cell are almost equal. Due to the pressure of the air sent from the blower 150, each cell expands and tries to expand into a spherical shape. Considering that the direction of lift generated by jet J is as vertical as possible, the upper and lower surfaces of the canopy 110 should be as flat as possible. For that purpose, it is better to set the distance between the ribs 113 to be narrow to suppress the swelling. The area of the connecting hole 114 is preferably as large as the strength of the cell allows. This is because the larger the area of the connecting hole 114, the easier it is for the air inside the canopy 110 to flow. As a method of increasing the area of the connecting hole 114, a method of providing a plurality of connecting holes 114 or increasing the connecting hole 114 can be considered.

<Second embodiment>
Next, the paraglider canopy 210 of the second embodiment of the present invention will be described with reference to FIGS. 9 to 11. The paraglider of the second embodiment has the same basic configuration as the paraglider 100 of the first embodiment, but the structure of the canopy is different. Therefore, in the present embodiment, the configurations different between the canopy 110 of the first embodiment and the canopy 210 of the second embodiment will be mainly described.

FIG. 9 is a perspective view showing the vicinity of the jet port 211 of the paraglider canopy 210 according to the second embodiment of the present invention. The jet port 211 is independently arranged at the leading edge portion on the upper surface of the canopy 210. In this case, since the size of the jet port 211 and the arrangement interval can be freely designed, the jet J can be distributed on the canopy 210 in a well-balanced manner.

FIG. 10 is an enlarged view showing a jet port 211 of the paraglider canopy 210 according to the second embodiment of the present invention, and FIG. 11 is an internal structure of the paraglider canopy 210 according to the second embodiment of the present invention. It is a perspective view which shows. In the canopy 210, a rectifying unit 212 for adjusting the flow of air blown from the jet port 211 is arranged along the front edge of the upper surface inside the canopy 210. Further, a curved portion 215 is provided in the vicinity of the portion where the air inside the canopy 210 enters the rectifying portion 212. The curved portions 215 are arranged apart from each other, and the air inside the canopy 210 flows into the rectifying portion 212 from between the curved portions 215. The curved portion 215 connects the straightening portion 212 slightly protruding to the outside of the blade shape and the recessed portion other than the straightening portion 212, and the shape of the blade leading edge can be adjusted by providing the curved portion 215. The contours of the jet port 211 and the curved portion 215 are shown in a quadrangular shape, but since a soft cloth-like material is used, the jet port 211 and the curved portion 215 are smoothly rounded according to the ambient pressure during use.

Hereinafter, the lift generated in the paraglider 100 according to the present invention will be described according to Examples. For the lift, the calculation formula (1) described below is used.
The following formula is for a general airfoil and calculates the lift generated by the entire wing against the wind from the front, but most of the lift is generated on the upper surface on the negative pressure side. This formula is applied.
L = 1/2 x C _L x ρ x V ² x _AL ... (1)
L: Lift _CL : Lift coefficient ≒ 1 (assumed value)
ρ: Air density ≒ 1.2 kg / m ³
V: Airspeed m / s ⇒ (jet speed) ≒ 20 m / s (set value)
_AL : Area where the jet is acting when viewed from the direction perpendicular to the flow m ² ≒ 5 m ² (set value)

The value of C _L will vary by the angle of attack on the shape and direction of the wind section of the canopy 110, for example, in the case of NACA23012 airfoil, the _{C L} ≒ 1 at angle of attack 8 °. The value of C _L is can be changed by deforming the angle of attack and a trailing edge, and C _L ≒ 1 as assumptions for ease of computation in the present invention. ρ is the air density, which varies depending on altitude, temperature and humidity, but is approximately 1.2 kg / m ³ on the ground near 0 m above sea level. V is the airspeed, which is the velocity of the jet J in this calculation. When the air volume supplied from the blower 150 is 0.3 m ³ / s, the size of the jet port 111 is 3 mm in height and 5 mm in width, and 1000 jet ports 111 are provided, the jet J is 20 m / s. A _L is the area of the jet J as viewed from the direction perpendicular to the flow is acting. Assuming that the projected area of the canopy 110 is 20 m ² , the jet J does not cover the entire surface of the canopy 110, but is limited, and the area of action is set ^{to 5 m 2.}
If you enter these values into the formula (1) above, the lift will be
L = 1/2 × 1 × 1.2 × 20 ² × 5 = 1200N≈120 kgf.
As can be seen from the calculation formula (1), the velocity of the jet J acts as a square in the calculation of lift, so that the influence is large.

Next, the thrust F generated in the paraglider 100 according to the present invention will be described using a calculation formula. The thrust F can be calculated by the following equation. It should be noted that the description of each value has already been omitted.
F = ρAV ² ... (2)
F: Thrust ρ: Air density ≒ 1.2 kg / m ³
A: Total cross-sectional area of jet port ≒ 0.015m ² (set value)
V: Airspeed ⇒ (jet velocity) ≒ 20 m / s (set value)

The value of A is the total cross-sectional area of the jet port 111. Assuming that the size of one jet port 111 is 3 mm in height and 5 mm in width, the cross-sectional area of one jet port 111 is 0.000015 m ^2. Since the number of jet ports 111 is 1000, the total cross-sectional area of the jet ports 111 is 0.015 m ² .
If you enter a numerical value in the formula (2) above,
A ^{F = 1.2 × 0.015 × 20 2} = 7.2N.

Next, the forward speed Vd of the paraglider 100 according to the present invention in a windless state will be described using a calculation formula. The forward speed Vd of the paraglider 100 is obtained by transforming the following equation (3) regarding the drag of the wing into the equation (4). It should be noted that the description of each value has already been omitted. Further, the drag force acting on the paraglider 100 is obtained by inputting the value of the thrust F obtained by the above equation (2) to obtain the value of Vd balanced with the drag force.
D = 1/2 x Cd x ρ x Vd ² x Ad ... (3)
Vd = ((2 × D) / (Cd × Ad × ρ)) ^1/2 ... (4)
D: Paraglider drag ≒ 7.2N (value balanced with thrust F)
Cd: Drag coefficient ≒ 0.1 (value set by regarding the cross-sectional shape of the canopy as streamlined)
ρ: Air density ≒ 1.2 kg / m ³
Ad: Projected area of the canopy seen from the direction of flow ≒ 3m ² (set value)
Vd: Forward flight speed of the paraglider according to the present invention in a windless state When these values are input to the equation (4) above and calculated, Vd = 6.3 m / s.

From the above formula, in the paraglider 100 according to the embodiment of the present invention, a lift of about 120 kgf is generated, and in a windless state, horizontal flight can be performed at about 6 m / s. Normally, when flying with a paraglider 100, flying in strong winds increases the probability of encountering an unexpected accident, so avoid it, and it is sufficient if you can fly at a propulsion speed of about 6 m / s in a windless to breeze environment. Is. Therefore, the paraglider 100 according to the present invention can have sufficient performance for leisure purposes.

As described above, according to the present invention, the paraglider 100 can be raised up semi-automatically by using the wind power of the blower 150, and at the same time, lift can be generated in the canopy 110 to easily take off and fly.

The paraglider according to the present invention is useful because sky sports can be performed more easily.

100 Paraglider 110 Canopy 210 Canopy 111 Jet outlet 211 Jet outlet 112 Rectifier 212 Rectifier 113 Rib 114 Connecting hole 215 Curved part 120 Line 130 Riser 140 Harness 150 Blower 160 Blower pipe 161 Holding member 170 Fuel tank J Jet

Claims (10)

A paraglider
A canopy that can be expanded by taking in air inside,
A blower that blows air into the canopy,
A blower pipe that guides the air discharged from the blower into the canopy,
A paraglider including a jet port that blows air inside the canopy from the front to the rear on the upper surface of the canopy. The paraglider according to claim 1, wherein the jet port is arranged at a leading edge portion on the upper surface of the canopy. The paraglider according to claim 1, wherein a plurality of jet ports are arranged in the width direction of the canopy. Claims 1 to 1, wherein the jet ports arranged on the central side of the canopy in the width direction of the canopy are arranged in a larger number than the jet ports arranged on both sides of the canopy. The paraglider according to any one of item 3. The paraglider according to any one of claims 1 to 4, wherein the canopy includes a rectifying unit that rectifies air sent from the inside of the canopy to the jet port. The paraglider according to any one of claims 1 to 5, wherein the rectifying unit is formed along the shape of the upper surface of the canopy. The paraglider according to any one of claims 1 to 6, wherein the number of blower pipes is two, and each of the blower pipes is separately connected to both ends of the canopy. The paraglider according to claim 1, wherein the cross-sectional shape of the blower pipe is an elliptical shape, and the major axis is arranged in a direction in which the major axis is in the front-rear direction with respect to the traveling direction. The paraglider according to any one of claims 1 to 8, wherein a holding member is provided inside the blower pipe in order to hold the shape of the blower pipe in an elliptical shape. A canopy that can be expanded by taking in air inside, a blower that blows air into the canopy, a blower pipe that guides air released from the blower into the canopy, and an air inside the canopy that is brought into the upper surface of the canopy. It is a flight method that uses a paraglider to fly with a jet that blows out from the front to the rear.
A step of expanding the canopy by sending air discharged from the blower into the canopy, and a step of expanding the canopy.
A flight method comprising expanding the canopy and then blowing air taken into the canopy from the front to the rear on the upper surface of the canopy from the jet port.

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