The composition of the paraglider

Paragliding usually consists of four major parts: wing-shaped umbrella suit, parachute rope, strap system and control system. To facilitate the storage, carrying, and transportation of paragliders, each paraglider is also equipped with a back-packing bag.

The wing-wing umbrella suit, also called the parachute wing, is the main component of the paraglider that generates lift and bears loads. The shape, area and speed of relative movement with the air stream have a great influence on the lift.

The stern-wing umbrella is composed of an upper wing surface, a lower wing surface, and dozens of shaped ribs that are regularly distributed along the wingspan direction. The upper and lower wing surfaces are stitched with the ribs to form a specific umbrella wing shape . The front edge of the umbrella suit is arranged in the transverse direction of the ribs to form a certain size air inlet. Because the rear edge of the umbrella coat is completely closed, air chambers for storing air are formed between the upper and lower wing surfaces and the ribs. When the umbrella suit moves relative to the air, the air enters the air chamber from the inlet. It cannot be discharged because the rear edge of the umbrella suit is closed. Under the action of air pressure, the inner cavity of the umbrella suit generates a certain pressure, which keeps this flexible umbrella suit. Certain rigidity and shape. In order to make the air inlet easier for air to flow in, the air inlet of each wing rib is sewn wi th a certain rigid, smooth and stiff plastic reinforcement sheet. In different parts of the wing ribs, there are also round holes of varying sizes and numbers. The purpose is to allow the air between the air chambers to flow along the wingspan direction. It is used to balance the pressure inside the umbrella suit, which is beneficial to maintain the entire Umbrella clothing shape, to prevent the umbrella clothing from collapsing due to uneven force when inflated.

Umbrella rope, which is used to connect the parasol and the strap system, so that the paraglider becomes a whole and maintains the shape of the wing surface of the paraglider in flight. At the same time, the parachute rope is also a force-transmitting component carried by the paraglider. The pilot can also use the parachute rope to effectively control the paraglider in flight.

Usually, the umbrella rope is divided into three or four groups from front to back, which are called groups A, B, C, and D, respectively, and are symmetrically distributed on both sides of the center axis of the umbrella. The upper end of the umbrella rope is usually a Y -shaped bifurcated shape, which is connected with the umbrella clothing at the seam area of ​​the lower wing surface and ribs of the umbrella clothing, and the lower surface is connected with the corresponding control belt through a removable metal ring. The length of the force is determined according to the shape of the airfoil connected to the control belt and the condition of the force. The length is determined according to the stability of the control and the requirement to maintain the optimal position of the angle of attack.

The strap is also called a seat belt or a sling. It is composed of many different functional parts, so it is called a strap system. The strap system should have good comfort and safety.

The strap system is a load-bearing component that fixes the pilot s body and connects with the entire parachute system, and it is also a protective component for the human body. In terms of fixing and connecting functions, it is composed of a main sleeve belt, a shoulder belt, a chest belt, a waist belt, a leg belt, a diagonal pull belt, a backup umbrella connecting belt, a metal buckle and a quick release lock, etc., and is formed around an L shaped backpack A whole. The materials of these straps are mostly high-strength brocade ribbons, 44 mm wide, and the breaking strength is above 1,200 kg. In terms of human protection, it consists of a glass fiber reinforced plastic outer cover, a back cushion lined with thick sponge rubber, and a seat cushion. More advanced is an inflatable air cushion, which is installed in the L backpack mezzanine of the strap system., Effectively enhance the protection of the human spine, back and pelvis to prevent the human body from colliding with obsta cles or being injured by towing during take-off and landing.

The The paraglider control system is mainly composed of a control belt, a control rope and a control loop (stick). High-performance paraglider and a set of pedal straps. When desired, some umbrella ropes can also be used for manipulation.

The entire control system is symmetrically distributed on both sides of the centerline of the umbrella clothing. The upper ends of the left and right control belts are Y shaped and connected to the rear edge of the umbrella clothing with a few points. The lower end passes through the limit pulley and the control sleeve on the rear control belt The loops are connected, and the left and right turns of the paraglider can be achieved by pulling down the control rope by the ferrule, and the speed control of the paraglider can be achieved by pulling down the control rope. When not in use, the control collar can be fixed with a snap on the rear control band.

The root of the paraglider control belt is usually divided into two or three forward and backward, and it is divided into three or four forward and backward (through the removable ring respectively) in the order of groups A, B, C, and D. Set of umbrella ropes connected. The high-performance paraglider s group A control belt is also equipped with two pairs of pulleys and an acceleration rope in front of it to connect with the pedal acceleration device. In addition to the connection with the umbrella rope , the control belt can also perform acceleration, deceleration, and height reduction. Manipulation.

The sole function of the pedal acceleration device is to increase the speed of the paraglider when needed during flight. The lower end of the acceleration device is connected to the pedal metal rod (accelerator rod), and the two acceleration control ropes on the rod are connected to the control belt acceleration rope through the pulley in front of the strap system. When the two pedals are used to lower the metal rod, the control bands of group A and group B are pulled down by the ladder, at the same time the leading edge of the umbrella is pulled down, the angle of attack is reduced, and the horizontal speed is increased.

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