RU2846772C1 - Parachute system for training and sports parachute jumps - Google Patents

Abstract

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly, to parachutes and is intended for training parachute jumps by paratroopers with at least 50 wing-type parachute jumps. Invention can be used for sports parachute jumps and parachute jumps for professional purposes. Proposed parachute system for training and sports parachute jumps comprises main and reserve parachute systems, pack and harness, pilot parachute and parachute flight. Main parachute system comprises main parachute area from 12 m² to 18 m², canopy has span from 5 to 7 m and elongation of 2.2-3 units, length of main belts are made with reduction from centre to edges of profile. Thus, the canopy has a weak elliptical shape, the values of the installation angle of the canopy ribs range from 18° up to 22°.

EFFECT: broader technical capabilities of the parachute system by achieving an average value of the horizontal component of the gliding speed of not less than 13 m/s and an average value of the vertical component of the gliding speed of not more than 5 m/s; reduced time of parachute turn by 360° when one of control slings is pulled to average value of not more than 7 s.

1 cl, 4 dwg

Description

The invention relates to the aviation industry, specifically parachute technology, and is intended for training parachute jumps by parachutists with at least 50 jumps on wing-type parachutes. The invention can be used for sport parachute jumping and professional parachute jumping.

The nine-cell elliptical high-speed parachute Flash is known [Description and operation of the parachute - Text: electronic // Aviatus: [site]. - 2025. - URL: hhttps://aviatus.ru/parachuting/parachutes/flash/description/ (date of access: 13.01.2025)], designed for training jumps by experienced parachutists. The parachute "Flash" gliding double-shell is designed as a self-inflating wing, consisting of an upper and lower shells connected by ribs, made of fabric with zero air permeability and includes 10 power (ribs to which the lines are attached) and 9 non-power ribs.

The disadvantages are the high values of the horizontal component of the gliding speed and the average value of the vertical component of the gliding speed.

The closest in technical essence, that is, the prototype, is the parachute system "Spirit SP", which includes the main parachute "Dolphin-2" [Main parachute Dolphin-2 - Text: electronic // Aviatus: [site]. - 2025. - URL: https://aviatus.ru/parachuting/parachutes/dolphin_2/ (date of access: 13.01.2025)], a reserve parachute, chambers for them, an exhaust spring parachute, free ends, a container, an exhaust link [Parachute system "SPIRIT-SP". Operation manual 00930 - 15RE - Text: electronic // ParAAvis: [site]. - 2025. - URL: https://www.paraavis.com/site/assets/files/3779/rukovodstvo_sp-18-vp.pdf (accessed: 13.01.2025)].

The disadvantage of the prototype is the limitation of technical capabilities, namely the large size of the canopy, significant time for a 360° turn when retracting one of the two control lines, and a high average value of the vertical component of the gliding speed.

The technical result of the proposed invention is the expansion of the technical capabilities of the parachute system by achieving an average value of the horizontal component of the gliding speed of no less than 13 m/s and an average value of the vertical component of the gliding speed of no more than 5 m/s; a reduction in the time of the parachute turn by 360° when one of the control lines is tensioned to an average value of no more than 7 s.

The said result is achieved by the fact that in a parachute system for educational, training and sports parachute jumps, including a main and reserve parachute systems, a container and a harness, an exhaust parachute, a parachute link, according to the invention, the main parachute system contains a main parachute with an area of 12 ^m2 to 18 ^m2 , the parachute canopy has a span of 5 to 7 m and an elongation of 2.2-3 units, the lengths of the power tapes are made with a decrease from the center to the edges of the profile, thus, the canopy has a weak elliptical shape, the values of the installation angle of the canopy ribs are from 18° to 22°.

This result is achieved by the weak elliptical shape, which improves the inflation of the side sections and maintains the canopy inflated. Combined with a span of 5 to 7 meters and an aspect ratio of 2.2 to 3 units, it also significantly reduces the likelihood of the leading edge corners collapsing during turns. An area ranging from 12 ^m² to 18 ^m² , combined with the specified canopy rib installation angles, facilitates the technical achievement and allows the invention to be used for sport and professional parachute jumping.

The invention is illustrated by drawings, where Fig. 1 shows the main parachute system, Fig. 2 shows a container with a suspension system, Fig. 3 shows an extraction parachute, and Fig. 4 shows a parachute link.

The parachute system for educational, training and sport parachute jumps contains the following main parts: the main parachute system (Fig. 1), the reserve parachute system, the container with the harness (Fig. 2), the pilot parachute (Fig. 3), the parachute link (Fig. 4). The main parachute system contains the parachute 1 with an area from 12 m ² to 18 m ² , wherein the profile of the canopy 1 has a span from 5 to 7 m and an aspect ratio of 2.2-3 units, the lengths of the power tapes are made with a decrease from the center to the edges of the profile, thus, the canopy has a slightly elliptical shape. The values of the installation angle of the ribs 2 of the canopy are from 18 ° to 22 ° . The container (Fig. 2) is made of high-strength fabric and has dorsal location of the compartments of the main and reserve parachute systems. The harness system (Fig. 2) made of power straps is mounted integrally with the container (Fig. 2). The reserve parachute system is mounted to the free ends of the reserve parachute system, formed from the power straps of the harness system (Fig. 2), and is stored in the upper compartment 3 of the container (Fig. 2) of the reserve parachute system. The free ends of the main parachute system (Fig. 1) are mounted to the power buckles located on the harness system (Fig. 2) using a ring locking device 4, to which the main parachute system is in turn mounted. The main parachute system (Fig. 1) is stored in the lower compartment 5 of the container (Fig. 2) of the main parachute system (Fig. 1). The pilot parachute (Fig. 3) is placed in the elastic pocket 6 on the container (Fig. 2) and is connected to the parachute canopy 1 via the parachute link (Fig. 4). The pilot parachute (Fig. 3) is designed to open the container flaps (Fig. 2) and pull out the main parachute system (Fig. 1).

The parachute system for educational, training and sport parachute jumps operates as follows. The design of the invention provides for manual opening of the valves of compartment 5 of the container (Fig. 2) of the main parachute system (Fig. 1) by extracting with the right hand by the parachutist from pocket 6, located in the lower part of the container (Fig. 2), a springless ("soft") pilot parachute (Fig. 3) both with its immediate introduction into the air flow and with a delay in opening of the valves of compartment 5 of the container (Fig. 2) of the main parachute system (Fig. 1). After inflation, the pilot parachute (Fig. 3) sequentially unchecks the container (Fig. 2) and pulls parachute 1 out of the container (Fig. 2). Under the action of the oncoming air flow, the parachute of the main parachute system (Fig. 1) is inflated.

The proposed invention expands the technical capabilities of the parachute system and increases the efficiency of its use, namely, it ensures an average value of the horizontal component of the gliding speed of no less than 13 m/s and an average value of the vertical component of the gliding speed of no more than 5 m/s, and also reduces the time of the parachute turn by 360° when one of the control lines is tensioned to an average value of no more than 7 s.

Claims (1)

A parachute system for educational, training and sports parachute jumps, including a main and reserve parachute systems, a container and a harness, an exhaust parachute, a parachute link, characterized in that the main parachute system contains a main parachute with an area of 12 ^m2 to 18 ^m2 , the parachute canopy has a span of 5 to 7 m and an elongation of 2.2-3 units, the lengths of the power tapes are made with a decrease from the center to the edges of the profile, thus the canopy has a weak elliptical shape, the values of the installation angle of the canopy ribs are from 18 ° to 22 °.