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Airborne Sergeant's Manual. Textbook for sergeant of the airborne troops Parachute d 5 technical characteristics

Parachute D-5 series 2

Purpose:
The landing parachute system D-5 series 2 is designed to parachute personnel behind enemy lines. Having large area domes and a relatively small mass, they ensure the safety of the parachutist’s landing. Unlike the D-1-5U parachute, the D-5, D-6 parachute has a single stowing method and deployment method when making jumps from all types of air transport at flight speeds of up to 400 km/h. The parachute system kit uses the same spare parachute system Z-5, Z-6P. For insurance purposes, advanced PPK-U parachute devices are installed on the backpack of these systems.
Tactical and technical data (TTD):
Operating restrictions:
weight of a paratrooper - no more than 120 kg;
aircraft speed during separation - no more than 400 km/h;
maximum jump height - 8000 m;
the minimum safe height for a jump with fall stabilization of 3 s at an aircraft flight speed of 160 km/h is 200 m;
descent speed on a stabilizing parachute - no more than 35 m/s;
descent speed on the main parachute - no more than 5 m/s;
the force required to open a double-cone lock using a manual opening link is no more than 16 kg-s;
weight of the parachute system without parachute device and parachute bag - 13.8 kg;
weight of the complete parachute system is 15.5 kg;
shelf life without repacking - no more than 3 months;
number of uses - 140 times;
The guaranteed service life of the main parachute is 12 years, by decision of the commission technical inspection parachute landing craft, the operating organization is allowed to increase the service life to 15 years.
Description of the complete set:
The parachute kit includes:
1) stabilizing parachute chamber;
2) stabilizing parachute;
3) stabilizing parachute link;
4) main parachute chamber;
5) main parachute;
6) suspension system;
7) parachute pack;
8) double-cone lock;
9) manual opening link;
10) parachute device PPK-U;
11) parachute bag;
12) passport;
13) auxiliary parts.
The stabilizing parachute chamber ensures that the stabilizing parachute is packed and deployed. The size of the chamber is 0.3 x 0.19 m. The base of the chamber is designed to accommodate a stabilizing parachute and part of the stabilizer. The stabilizing parachute chamber is made of nylon avisent and has a cylindrical shape. A carabiner, a fastening tape, a carabiner fastening tape, four metal rings and a tie are attached to the camera base. The carabiner is used to hook a camera with a stowed stabilizing parachute to a cable (when jumping from an airplane) or an extension cord (when jumping from a helicopter) in an airplane. Using a fastening tape, the stabilizing parachute chamber is secured to the main parachute backpack. The upper base of the chamber, after placing the dome in it, is tied with a string. At the bottom of the camera there are 4 rings sewn to secure it with the stabilizer rings.
The stabilizing parachute (pilot chute) provides a stabilized descent of the paratrooper, putting into operation the PPK-U parachute device and the main parachute. A stabilizing parachute consists of a canopy, lines, and a stabilizer. The dome, with an area of ​​1.5 m2, is made of nylon fabric, has the shape of a truncated cone and consists of a base and a sidewall. 8 pockets made of painted nylon fabric are sewn to the pole part of the dome base, which serves to quickly fill the dome with air. Nylon tapes are sewn onto the outer side of the base and sidewalls, reinforced by folding the fabric and tape, and additionally sewn on both sides. 16 slings are sewn to the edge of the reinforcing frame using a zigzag stitch. The slings are made of nylon cord. The free length of lines 1, 4, 5, 8, 9, 12, 13 and 16 from the canopy edge to the stabilizer loop is 0.52 m, and lines 2, 3, 6, 7, 10, 11, 14 and 15 are 0 .5 m. The different lengths of the lines are due to their distribution from the edge of the canopy to 4 stabilizer feathers. The stabilizer is made of nylon fabric and consists of four triangular “feathers” sewn in the center. Nylon tapes are sewn on the sides of each stabilizer feather. At the top of the tape they form a loop for attaching slings. At the bottom they are brought together into a thimble, with the help of which the stabilizer is attached to the link of the stabilizing parachute. One metal ring is sewn onto each feather to secure the stabilizer with the rings of the stabilizing parachute chamber.
The stabilizing parachute link is designed to connect the stabilizing parachute to the backpack during stabilization, as well as to connect the stabilizing parachute to the canopy of the main parachute at all subsequent stages of its operation. The link of the stabilizing parachute is 1.03 m long. It is made of nylon tape in 2 folds, which in the upper part end with a loop measuring 130 mm for connecting the stabilizer. At a distance of 410 mm from it, a loop of tape is sewn to connect the power cord of the PPK-U device. A guide ring for the power cord of the PPK-U device is attached to the link using a sewn-in nylon tape. The lower part of the stabilizing parachute link branches and forms 2 power bands, at the end of which metal buckles are sewn. These tapes have arrows on them to control their position when loading the double-cone lock. Jumpers made of nylon tape are sewn onto the tapes on both sides. A tape is sewn between the jumpers, which forms a loop for attaching the stabilizing parachute link to the bridles of the main parachute canopy and its chambers. The triangle formed from ribbons is covered on both sides with kerchiefs made of nylon avisent.
The main parachute chamber ensures the packing and deployment of the main parachute in a given sequence and thereby reduces the dynamic load at the moment the main parachute opens. The chamber size is 0.63 x 0.45 m, made of nylon fabric, and has the shape of a cylinder. Consists of a base, a scarf and an apron. The side of the chamber base with honeycombs for slings is reinforced with a second layer of nylon fabric. WITH outside The base chamber is reinforced with two nylon tapes, which, intersecting in the upper part of the base, form a bridle designed to connect the chamber with the canopy of the main parachute and the stabilizing link of the stabilizing parachute. A scarf made of nylon fabric is sewn to the base of its upper part, covering the canopy of the main parachute placed in the chamber. To tighten the upper part of the base after placement in the canopy chamber of the main parachute, a tie is passed through the fold of the upper part of the base. On the outer side of the sling, honeycombs (gazyrs) are sewn onto the base, which serve as: one middle honeycomb (gazyr) and two groups of side honeycombs (gazyrs) with loops - for laying slings; in honeycombs (gazyrs) made of rubber cord - to hold slings of tubular honeycombs (gazyrs); two pairs of removable rubber honeycombs (gazyres) - for securing the canopy of the main parachute placed in the chamber using an apron and bundles of lines. The lower part of the base ends with a sleeve, into the hem of which an elastic ring is inserted, facilitating the orderly exit of the main parachute canopy from the chamber. To cover the edge of the main parachute canopy, an apron is sewn to the bottom of the base with two pairs of metal windows and two sewn-on pockets covering bundles of lines that secure the bottom of the camera base.
Main parachute. The dome is 28-angled, with an area of ​​83 m2. A reinforcing frame is sewn on top of the dome. Made from panels of nylon fabric. The reinforcing frame along the edge of the dome forms 28 loops for attaching slings. In the center of the main parachute canopy, a bridle made of nylon tape is sewn to connect it with the main parachute chamber and the stabilizing link. 28 tightening tapes are sewn above the loops for attaching the lines to speed up the filling of the parachute canopy and reduce the likelihood of it getting tangled with the lines. Between the first and 28th lines there is a factory mark - the manufacturer's mark. It has the parachute number and the date of its manufacture. 28 lines made of nylon cord 9 m long are attached to the loops of the main parachute canopy. The other ends of the lines are attached to the half rings, which are located at the free ends suspension system. To make installation easier, an orange sleeve is sewn onto the 14th line.
The harness system is the connecting link between the parachutist and the parachute. Made from nylon tape with a tensile strength of 1600 kg. It consists of a main girth, which ends with two pairs of free ends: 2 front and 2 rear with metal buckles - half rings for attaching slings. The main girth is sewn from nylon tape in two folds. It also contains a manual deployment link, a pocket for the manual deployment link ring, a loop for the manual deployment link hose, a flexible hose, 2 clips for attaching a reserve parachute, a circular strap, two leg loops with two carabiners, a curved buckle for connecting the main loop to the back -shoulder girth, 2 pairs of metal buckles for attaching the backpack's adjusting straps. There are also 2 back-shoulder straps, 2 leg straps with two carabiners and two D-shaped buckles, a chest strap, a waist strap with rectangular buckles.
The parachute backpack is designed for fastening and placing in it (stacking) the main parts of the parachute (the canopy with lines and parts of the risers). It is made from nylon avisent. Consists of a double bottom, left and right valves. A stiffening frame is inserted into the bottom of the backpack. In the upper part of the backpack there are 2 windows for the passage of power tapes of the stabilizing parachute link. Two straps for buckles with jagged bridges are attached to the bottom of the backpack, with the help of which the backpack is connected to the dorso-shoulder straps; double cone lock with plate; a half ring for a rubber honeycomb, which secures the stabilizing parachute to the backpack; 2 buttons for fastening the valve of the double-cone lock; flexible hose for manual opening link; valve covering the double-cone lock; 8 nylon loops for attaching the backpack to the suspension system; 2 rubber bands for pulling the backpack to the main girth of the harness; 2 scarves with metal buckles for ribbons with a carabiner for fastening the reserve parachute; 2 straps for tightening the backpack [not in D-1-5U!]; pocket for the PPK-U belay device. The left and right valves have metal rings for the passage of power tapes of the stabilizing parachute link through them. In addition, the right valve has a ring for securing the stabilizing parachute link loop with a cord (adapter) attached to it for turning on the PPK-U parachute device; a rubber honeycomb for refueling the stabilizing parachute link when the slack has been developed and mounting the camera with the stabilizing parachute on the backpack; a pocket with a safety valve for the safety cord of the PPK-U parachute device; pocket with a ribbon tie for placing and fastening the PPK-U parachute device. The factory and rack numbers of the parachute are marked on the right flap.

A double-cone lock is a mechanical device for closing the buckles of the power straps of a stabilizing parachute and holding them during the entire period of the parachutist’s stabilized descent, as well as for releasing these buckles and dropping them from the cones when the manual deployment link is pulled out or the PPK-U parachute device is activated. The double cone lock consists of a mounting plate, a body with two large cones, a bolt with two small cover cones, a large cone cover, a small cone, 2 shock absorbers, 2 power strap buckles, a spring washer, a flat washer, an 18 mm long screw, a cover screw, screw with nut and 3 screws 20 mm long.
The pull ring is included in the manual opening link and consists of a ring, a cable and a loop.

The D5 parachute is designed for training and combat jumps from transport aircraft. The D-5 parachute appeared in the army in the early 1970s. Its design turned out to be very successful and in one form or another, variations and further modifications of this parachute are used to this day. Most known variety- D-5 series 2, which stood on airborne weapons almost until the mid-to-late 1980s.

Having a large canopy area and a relatively small mass, the D-5 ser parachutes. 2 ensure a safe landing for the parachutist. The parachute system kit includes a spare parachute system Z-5, Z-6P. For insurance purposes, advanced PPK-U parachute devices are installed on the backpack of these systems.

Tactical technical specifications parachute D-5 ser.2.

The weight of a paratrooper should not exceed 120 kg. The speed of the aircraft during separation is no more than 400 km/h. Maximum height jump - 8000 meters. The minimum safe height for a jump with fall stabilization is 3 seconds, with an aircraft flight speed of 160 km/h - 200 meters. The rate of descent on a stabilizing parachute is no more than 35 m/s. The rate of descent on the main parachute is no more than 5 m/s. The system is put into operation using both a pull ring and a safety device. In this case, the force required to open the double-cone lock using the manual opening link does not exceed 16 kg-s.

Dimensions of the stowed parachute.

Length without stabilizing dome in the chamber, mounted on the backpack: 595+10 mm;
Width without parachute device: 335+10 mm;
Height: 220+10 mm;

The weight of the parachute without a carrying bag and instruments is no more than 13.8 kg.

Features of the structure of the dome.

The dome consists of nylon fabric and has the shape of a twenty-octagon. The area of ​​the dome is 83 m². To increase strength, the lower edge of the dome is stitched with nylon tapes with a strength of 200 kgf, and its central part- tapes with a strength of 70 kgf. 28 slings, 9 meters long, made of nylon cord with a tensile strength of 150 kgf are attached to the dome. Also, the D-5 series 2 has a stabilizing parachute with an area of ​​1.5 m².

Parachuting and landing.

The D-5ser.2 parachute is not controlled and moves with the wind. (However, if you have some experience, you can slightly adjust the landing point by sliding. Read more about this method in the technical characteristics of the D1-5u parachute). It does not have control lines and the parachute does not have its own horizontal speed.

To land safely, the skydiver must move in the direction of the wind and avoid standing sideways or moving his back into the direction of the wind. To turn into the wind, you need to turn around before landing, crossing the risers. Preparing to land involves squeezing your legs tightly and bending your knees slightly. The feet must be kept parallel to the ground. The legs should be tense.

After touching the ground with his feet, the parachutist needs to fall on his side or somersault forward in the direction of movement. Then the parachutist needs to “extinguish the canopy” of the parachute, for which he must stand on his feet and either run around the canopy from the side as quickly as possible, thereby changing its shape against the wind, or by grasping 2-3 lower ones (located in at the moment closer to the ground) the lines begin to pull them towards themselves, which will also affect the shape of the canopy after several meters of tension. After the entire canopy falls on the field, the parachutist must collect the parachute in a bag and return to the start.

Paratrooper? What are they made of? You will find answers to these and other questions in the article. A parachute is a device made of fabric, made in the form of a semicircle, to which a load or suspension system is attached with slings. It slows down the movement of an object in the air. Parachutes are used to delay the movement of winged vehicles during landing and jumping from fixed objects (or from aircraft) for the purpose of safe descent and landing of cargo (people).

Varieties

Many people are interested in knowing how many lines a paratrooper’s parachute has. At first, air umbrellas were used to softly land a person on Earth. Today they are used to save people and drop them from the air. In addition, they serve as sports equipment.

For landing cargo and cars, cargo sky umbrellas were invented. Several such devices can be used simultaneously to land heavy equipment. Rescue systems on light aircraft are a variation of these. Such devices consist of a parachute and forced extension accelerators (rocket, ballistic or pyrotechnic). When a dangerous situation arises, the pilot activates the rescue device and the plane lands on the ground using a parachute. These techniques are very often criticized.

Small stabilizing parachutes (also called pilot chutes) help regulate body position during a relaxed descent. Containment air umbrellas have been developed to reduce braking distance on transport and ships, to stop cars in drag racing. For example, Tu-104 aircraft and early Tu-134 models were equipped with such devices.

In order to reduce speed spacecraft When landing on a celestial object or while moving through the atmosphere, parachutes are also used. It is known that ordinary round sky umbrellas have been developed for landing people and cargo. There are also round parachutes made in the form of a Rogallo wing, with a retracted top, ribbon parachutes for supersonic speed, parafoils - wings in the shape of an ellipse or rectangle and many others.

Devices for disembarking people

So, how many lines does a paratrooper's parachute have? For the safe landing of a person, experts have developed the following types of air umbrellas:

The basic types are landing (round) parachutes and “wing” systems (shell gliding means).

Types of army "air umbrellas"

Every soldier should know how many lines a paratrooper's parachute has. Army sky umbrellas come in two types: square and round. The canopy of a landing round parachute is a polygon, which, when filled with air, takes on the appearance of a hemisphere. The top has a cutout (or less dense fabric) in the center. Such systems (for example, D-5, D-10, D-6) are distinguished by the following altitude characteristics:

  • normal working altitude - from 800 to 1200 m;
  • maximum release height - 8 km;
  • the lowest ejection level is 200 m with a descent on a filled dome of at least 10 seconds and stabilization for 3 seconds.

Round parachutes are difficult to control. They have approximately equal horizontal and vertical speed (5 m/s). The weight of these devices is as follows:

  • 13.8 kg (D-5);
  • 11.7 kg (D-10);
  • 11.5 kg (D-6).

Square parachutes (for example, the Russian “Listik” D-12, T-11 USA) have additional slots in the arch, with the help of which the paratrooper controls horizontal movement. They also improve maneuverability. The horizontal speed of the products is up to 5 m/s, and the descent speed is up to 4 m/s.

D-6

Now let’s find out how many lines there are in the paratrooper’s parachute D-6, which was developed by the Research Institute of Parachute Engineering (Aviation Equipment holding). It is used for combat and training jumps from transport aircraft. Previously it was used by the USSR.

Today, the modified D-6 device of the fourth series, along with the new D-10, is used by flying clubs and airborne troops. Its canopy correction system consists of lines, a link stabilizer and an apex base. Along the lower edge of the arch, 16 ropes from ShKP-200 nylon rope were threaded and stitched under the reinforcing radial tapes. The length of the outer lines, placed in a free state on each loop, from the lower edge of the top to the stabilizer loops is 520 mm, and the middle ones - 500 mm.

Nuances of D-6

The base of the D-6 dome is made of nylon material art. 560011P, and the overlay is made of the same fabric, but has art. 56006P. Between slings No. 15A and 15B, 1A and 1B, on the base of the dome there are slots measuring 1600 mm, designed to rotate the arch during descent. At the top there are 30 cables made from ShKP-150 nylon rope. 7 slings are attached to the free edges of the suspended structure No. 2 and 4, and 8 to No. 1 and 3.

The length of the slings in a free position from the half-ring buckles to the lower edge of the dome is 9000 mm. Marks are drawn on them at a distance of 200 mm from the lower edge of the arch and 400 mm from the half-rings-buckles of the free ends. They make the installation of canopy cables super easy. Coordinating ropes are sewn to slings No. 15A and 15B, 1A and 1B. The dome has an area of ​​83 square meters. m.

The control lines are made of red nylon rope ShKPkr. They are passed through rings sewn to the inside of the free ends of the hanging structure.

D-10

Now we’ll tell you how many lines the D-10 paratrooper’s parachute has. It is known that this sky umbrella replaced the D-6 parachute. Its dome, made in the shape of a squash, with a beautiful appearance and improved characteristics has an area of ​​100 sq. m.

The D-10 device was made for the landing of novice paratroopers. With its help, you can perform combat and training jumps from the Il-76 transport and military aircraft, the An-2 aircraft, and the Mi-6 and Mi-8 helicopters. During the release, the flight speed is 140-400 km/h, the lowest jump height is 200 m with stabilization for 3 seconds, the maximum is 4000 m with a flight weight of a person of 140 kg, the descent occurs at a speed of 5 m/s. The D-10 parachute has different line lengths. It weighs little and has many control options.

Every serviceman knows how many lines there are in the main parachute of a D-10 paratrooper. The device has 22 ropes with a length of 4 meters and 4 cables connected to the loops of the dome slots, 7 m in size, made of ShKP-150 nylon rope.

The parachute is also equipped with 22 additional external lines made from ShKP-150 harness, 3 m long. In addition, it has 24 internal additional ropes made from ShKP-120 harness, 4 m in size, attached to the base lines. A pair of internal additional slings is attached to cables 2 and 14.

D10P

What's good landing parachute? D-10 and D10P - amazing systems. The D10P device is designed so that it can be converted into a D-10 and vice versa. You can practice with it without stabilizing for forced opening. Or you can attach it, put the parachute to work with adjustments - and into the plane, into the sky...

The D10P canopy is made of 24 wedges, the slings have a tensile strength of 150 kg each. Their number is identical to the number of cables of the D-10 sky umbrella.

Spare parts

How many lines does a paratrooper's reserve parachute have? It is known that the design of the D-10 allows the use of spare air umbrellas type 3-5, 3-4, 3-2. The opening of the double-cone lock is secured by parachute devices PPK-U-165A-D, AD-ZU-D-165.

Let's consider a reserve parachute device 3-5. It consists of the following parts: a canopy with slings, a suspended intermediate system, a backpack, a manual opening link, a parachute bag and passport, and auxiliary parts.

A reserve parachute helps create a safe rate of descent (landing). This is a load-bearing surface made in the form of a framed surface layer with load-bearing parts that connect the top to the suspended intermediate system.

The parachute has a round arch with an area of ​​50 square meters. m, which consists of four sectors made of five nylon panels. These components are sewn together with a lock stitch.

24 slings made of ShKP-150 nylon rope are attached to the dome loops. Their longitude in a free position from the lower edge of the arch to the semi-rings of the suspended intermediate system is 6.3 m. To simplify the installation of the arch, the 12th line is made of a red cord (or an identifying red sleeve is sewn onto it).

On each rope, at a distance of 1.7 m from the lower edge of the arch, there is a black mark indicating the place where the lines are completed in the cells of the backpack.

Interaction of parts

If the main parachute does not work, the paratrooper must sharply pull out the pull ring of the manual opening element with his hand. As a result, the pockets of the exhaust device located around the pole gap, finding themselves in the air flow, pull out the arch and lines of the reserve parachute from the backpack and remove the person from it.

Under the influence of air flow, the canopy of this device fully opens, ensuring a normal landing.

The parachute (Fig. 1, 2) is intended for training jumps from transport aircraft.

Rice. 1. Deployment diagram of the D-5 series 2 parachute:

1 - stabilizing dome chamber; 2 - stabilizing dome; 3 - connecting link; 4 - chamber of the main dome; 5 - main dome; 6 - backpack

Rice. 2. General view stowed parachute D-5 series 2:

1 - carabiner; 2 - sealing tape

Tactical and technical data of the parachute

1. When total mass For a parachutist with parachutes not exceeding 120 kg, the D-5 series 2 parachute provides:

  • at least 80 applications at flight speeds up to 400 km/h according to the instrument and altitudes up to 8000 m with immediate deployment of the stabilizing parachute and subsequent descent on it for 3 s or more;
  • stability during decline;
  • the ability to stop the descent on the stabilizing dome at any time by opening the double-cone lock with a pull ring;
  • the minimum safe altitude for use from a horizontally flying aircraft at a flight speed of 160 km/h according to the instrument with stabilization of 3 s is 200 m, while the descent time on a fully filled main parachute canopy is at least 10 s;
  • the average vertical speed of descent, normalized to the standard atmosphere and the total mass of the parachutist with parachutes 120 kg, in the area 30-35 m from the ground - no more than 5 m/s;
  • rapid loss of height when sliding without the phenomena of folding the canopy;
  • the use of two belay devices (main and backup) with a hose length of 240 mm;
  • quick suppression of the canopy after landing when the right free end of the suspension system is disconnected using the OSK-D lock;
  • use of reserve parachutes type 3-2 or 3-5;
  • the force required to open a double-cone lock with a pull ring or device is no more than 16 kgf.

2. Dimensions stowed parachute, mm:

  • length without a stabilizing dome in the chamber mounted on the backpack - 595+10;
  • width without parachute device - 335+10;
  • height - 220+10.

3. The weight of the parachute without a carrying bag and instruments is no more than 13.8 kg.

Tactical and technical data of parachute parts

1. The stabilizing dome chamber is cylindrical in shape, made of nylon avisent (art. 56039). The length of the camera is 300 mm, the width when folded is 190 mm. At the top of the camera there is a carabiner, which is attached to the camera with nylon tape LTKkrP-26-600 with a strength of 600 kgf. At the bottom of the chamber, four NP-25-8 rings are sewn diametrically opposite to secure the chamber with the stabilizer rings. A nylon cord-tie ShKP-150 with a strength of 150 kgf is inserted into the hem of the upper base of the chamber to tighten the upper base of the chamber. A nylon tape LTKkrP-26-600 with a strength of 600 kgf is passed into the eye of the carbine and stitched with a zigzag stitch to secure the rubber honeycomb mounted on the backpack. Camera weight - 0.155 kg.

The chamber is designed to accommodate a stabilizing dome, slings and the upper part of the stabilizer.

2. The stabilizing dome is made of nylon fabric (art. 56004P or 56008P) and consists of a base and a sidewall. The dome has the shape of a truncated cone with a large base area of ​​1.5 m². To ensure the filling of the dome, an exhaust device is sewn into its pole part, consisting of eight pockets, the material for which is dyed calendered fabric (art. 56005krPK or 56005krP). On the outer side of the dome base, reinforcing tapes LTKP-15-185 with a strength of 185 kgf and circular tapes LTKP-13-70 with a strength of 70 kgf are stitched in the radial direction. The canopy has 16 slings made of ShKP-150 nylon cord with a strength of 150 kgf. The length of lines No. 1,4, 5, 8, 9, 12, 13 and 16 in a free state from the lower edge of the canopy to the stabilizer loops is 520 mm, and lines No. 2, 3, 6, 7, 10, 11, 14 and 15 - 500 mm.

For each side the feather is sewn on a tape with a ring for locking with rings sewn on the camera of the stabilizing dome.

The mass of the stabilizing dome is 0.57 kg.

3. A connecting link made of nylon tape LTKMkrP-27-1200 with a strength of 1200 kgf in two folds, designed to connect the stabilizing dome with the backpack at the stage of stabilized descent and with the main dome at all stages of operation.

At the top, the connecting link forms a 130 mm loop for attaching the stabilizer thimble. At a distance of 410 mm from the top loop, a loop is sewn from nylon tape LTKkrP-26-600 with a strength of 600 kgf to attach the halyard of the flexible pin of the device. The lower part of the connecting link branches, forming power strips, into the ends of which the buckles of a double-cone lock are sewn.

Jumpers made of nylon tape LTK-44-1600 with a strength of 1600 kgf are sewn onto the power tapes on both sides. A nylon tape with a strength of 1200 kgf is sewn between the jumpers, forming a loop for attaching to the bridles of the camera and the main dome. The triangle formed from the ribbons of the connecting link is covered on both sides with scarves made of gray nylon avisent (art. 56039).

Under one of the gussets of the connecting link, using nylon tape with a strength of 600 kgf, a guide ring for the halyard of the flexible pin of the device is sewn. There are arrows on the power bands near the buckles to control the correct installation and placement of the power bands on the double-cone lock. The length of the connecting link is 1030 mm.

The mass of the connecting link is 0.275 kg.

4. The chamber of the main dome made of gray nylon fabric (art. 56023krP), intended for laying the main dome and slings, has the shape of a cylinder with a height of 635 mm and a width (folded) of 450 mm. A continuation of the lower base is a special sleeve, into the hem of which an elastic ring is inserted to ensure the orderly exit of the main dome from the chamber.

The surface of the chamber is reinforced with two nylon tapes with a strength of 600 kgf, which form a bridle. For the convenience of laying the dome, a gusset made of gray nylon fabric is sewn onto the edge of the chamber.

In the hem of the upper base to tighten the camera

A nylon cord with a strength of 150 kgf is inserted. Two pairs of removable rubber honeycombs are attached to the bottom of the chamber. On the reverse side, at a distance of 185 mm from the lower base of the chamber, an apron is sewn, which has four windows formed by eyelets for the passage of removable rubber honeycombs.

On the camera there is sewn one middle gazyr, a group of right and a group of left gazyrs for laying slings, three honeycomb distributor tapes with honeycombs from a backpack cord for holding the lines in the gazyrs.

For the convenience of laying the slings, nylon tapes with a strength of 150 kgf are sewn onto the gazyrs.

Camera weight - 0.44 kg.

5. The dome (Fig. 3) made of nylon fabric (art. 56009P) has the shape of a twenty-octagon and is designed for the safe descent and landing of a parachutist. The area of ​​the dome is 83 m².

To increase strength, the lower edge of the dome is stitched with nylon tapes with a strength of 200 kgf, and its central part is stitched with tapes with a strength of 70 kgf.

28 slings made of nylon cord with a strength of 150 kgf and a length of 9000 mm are attached to the dome.

Dome weight - 8.136 kg.

Rice. 3. The shape of the canopy of the D-5 series 2 parachute in plan.

The numbers in the circle are the numbers of the slings, the numbers inside the circle are the numbers of the squares: 1 - dome panels; 2, 4 - reinforcing frame; 3 - loops for slings.

6. Suspension system made of nylon tape LTK-44-1600 with a strength of 1600 kgf, designed for convenient placement of the parachutist and is the connecting link between the parachutist and the canopy.

The suspension system is equipped with an OSK-D lock and consists of the following main parts: the main strap with back-shoulder loops, one pair of detachable risers, and leg loops.

Detachable buckles are attached to the free ends of the suspension system. WITH reverse side The main strap (on the right - below the OSK-D lock, on the left - below the curved buckle) is sewn using nylon tape LTKkrP-43-800 with a strength of 800 kgf to the buckles for fastening the cargo container straps. At the bottom, the main strap is bifurcated, the strips are sewn end to end, and a cotton pad is sewn onto them for comfortable sitting in the harness system.

In the middle of the lower part of the main strap, on the outer side, a loop is sewn from nylon tape with a strength of 800 kgf for attaching a cargo container link.

On both sides of the loop at a distance of 150-165 mm, using nylon tape with a strength of 600 kgf, half-ring buckles are sewn to tighten the lower corners of the backpack to the main strap.

The shoulder girths, which formed the chest jumper, then pass through the windows of the main strap and, with the help of rectangular buckles sewn into the ends of the shoulder girths, form a waist girth.

The lower ends of the dorso-shoulder loops, passed between the ribbons of the main strap and bending around them in several places, form leg loops.

The weight of the suspension system is 2 kg.

7. A nylon satchel consists of a bottom, right and left valves. The bottom of the backpack is double, a rigid frame is inserted into it.

The backpack is designed to accommodate a canopy with slings placed in the chamber, parts of the free ends of the suspension system and a belay device. The backpack has a double-cone lock and a flexible hose covered with cotton tape LXX-40-130, varnish color, with a strength of 130 kgf.

Hose length - 380 mm.

The weight of the backpack is 2 kg.

8. The pull ring with a cable is designed to open the double-cone lock. It is made of steel rod and consists of a body, a limiter, a cable and a wire loop.

Ring weight - 0.1 kg. Cable length - 600 mm.

9. Insurance device (main) AD-ZU-240, PPK-U-240B or KAP-ZP-240B.

The length of the device hose is 240 mm, the length of the cable is 397 mm, the length of the loop is 19 mm, the length of the flexible pin halyard is 360 mm.

The weight of the belay device is 0.95 kg.

When installing only one device on a parachute for opening a double-cone lock, the device can be equipped with a loop 42 mm long. The earring is not used in this case.

10. Safety device (duplicate) AD-ZU-240, PPK-U-240B or KAP-ZP-240B.

Hose length - 240 mm, cable length - 397 mm, loop length - 19 mm, flexible pin halyard length - 360 mm.

The weight of the device is 0.95 kg.

11. The earring, designed to connect the main and backup devices, is made of steel. The thickness of the earring is 2.5 mm. The earring has two holes: one is intended for the lock cone, the other is for the hinges of the main and backup devices.

12. Carrying bag rectangular shape, made from cargo notice.

Bag dimensions - 260x740x600 mm. Bag weight - 0.725 kg.

13. The passport is intended to record information about the reception, transfer, operation and repair of the parachute.