Parachute d5 series 2. Textbook of the sergeant of the airborne troops. Parachute belay device

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

Rice. 1. Diagram of D-5 series 2 parachute deployment:

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

Rice. 2. General view of the packed parachute D-5 series 2:

1 - carbine; 2 - check-in tape

The performance data of the parachute

1. With a total weight of a parachutist with parachutes not exceeding 120 kg, the D-5 series 2 parachute provides:

at least 80 applications at a flight speed of up to 400 km / h on the instrument and at altitudes up to 8000 m with the immediate introduction of the stabilizing parachute into action and subsequent descent on it for 3 s or more;
resistance to decline;
the possibility of stopping the descent on the stabilizing dome at any time by opening the double-cone lock with the pulling ring;
the minimum safe altitude for use from a horizontally flying aircraft at a flight speed of 160 km / h on an instrument with stabilization of 3 s - 200 m, while the descent time on a fully filled canopy of the main parachute is at least 10 s;
the average vertical speed of descent, reduced to the standard atmosphere and the total weight of the parachutist with parachutes, 120 kg, in the section 30-35 m from the ground - no more than 5 m / s;
rapid loss of height when sliding without the phenomenon of folding the canopy;
the use of two safety devices (main and backup) with a hose length of 240 mm;
quick extinguishing of the canopy after landing when disconnecting the right free end of the harness by means of the OSK-D lock;
use of reserve parachutes of type 3-2 or 3-5;
the effort required to open the double-cone lock with a pulling ring or a device is no more than 16 kgf.

2. Overall dimensions of the packed parachute, mm:

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

3. The weight of the parachute without a portable bag and devices is not more than 13.8 kg.

The performance data of the parachute parts

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

The camera is designed to fit the stabilizing canopy, slings and the top of the stabilizer.

2. The stabilizing dome is made of nylon cloth (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 in its pole part, consisting of eight pockets, the material for which is a dyed calendered cloth (art. 56005krPK or 56005krP). On the outer side of the dome base, reinforcing strips LTKP-15-185 with a strength of 185 kgf and circular strips LTKP-13- 70 with a strength of 70 kgf are stitched in the radial direction. On the dome there are 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 sling No. 2, 3, 6, 7, 10, 11, 14 and 15 - 500 mm.

On each side of the feather there is a ribbon with a ring for locking with rings sewn on the camera of the stabilizing dome.

The weight 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 additions, designed to connect the stabilizing canopy with the knapsack at the stage of stabilized descent and with the main canopy at all stages of work.

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

On both sides of the power tapes, jumpers are sewn from nylon tape LTK-44- 1600 with a strength of 1600 kgf. A nylon tape with a strength of 1200 kgf is sewn between the bridges, forming a loop for attaching the chamber and the main dome to the bridles. The triangle formed from the tapes of the connecting link is closed on both sides with kerchiefs made of gray nylon advices (art. 56039).

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

Connecting link weight - 0.275 kg.

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

The surface of the chamber is reinforced with two nylon strips with a strength of 600 kgf, which form a bridle. For the convenience of laying the dome, a kerchief made of gray nylon cloth 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. Attached to the bottom of the chamber are two pairs of removable rubber honeycomb. On the reverse side, at a distance of 185 mm from the lower base of the camera, an apron is sewn, which has four windows formed by eyelets for the passage of removable rubber honeycombs.

One middle gas, a group of right and a group of left gas for laying lines, three strips of a honeycomb distributor with honeycomb from a knapsack cord are sewn onto the camera to hold the lines in the gas.

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

Camera weight - 0.44 kg.

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

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

On the dome, 28 slings are attached from a nylon cord with a strength of 150 kgf and a length of 9000 mm.

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

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

The harness is equipped with an OSK-D lock and consists of the following main parts: a main strap with back-shoulder loops, one pair of detachable free ends, and leg loops.

Detachable buckles are attached to the free ends of the harness. On the reverse side of the main strap (on the right - below the OSK-D lock, on the left - below the curved buckle), buckles for fastening the belts of the cargo container were sewn using a nylon tape LTKkrP-43- 800 with a strength of 800 kgf. In the lower part, the main strap is bifurcated, the ribbons are sewn end-to-end, and a cotton pad is sewn on them for comfortable sitting in the harness.

In the middle of the lower part of the main strap, from the outside, a loop of nylon tape with a strength of 800 kgf is sewn to fasten the link of the cargo container.

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

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

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

Suspension system weight 2 kg.

7. A satchel made of nylon avisent consists of a bottom, right and left valves. The bottom of the knapsack is double, a stiffening frame is inserted into it.

The knapsack is designed to accommodate a dome with slings placed in the chamber, parts of the free ends of the harness and a safety device. The knapsack has a double-cone lock and a flexible hose covered with a cotton tape LXX-40-130 varnish-colored with a strength of 130 kgf.

Hose length - 380 mm.

The weight of the knapsack is 2 kg.

8. A pull-out ring with a cable is designed to open the double-cone lock. It is made of steel bar and consists of a body, stop, cable and wire loop.

Ring weight - 0.1 kg. The length of the cable is 600 mm.

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

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

The weight of the safety device is 0.95 kg.

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

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

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

The mass of the device is 0.95 kg.

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

12. Portable bag of rectangular shape, made of cargo advices.

The dimensions of the bag are 260x740x600 mm. The weight of the bag is 0.725 kg.

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

Laying is carried out by 2 people - laying (responsible for laying) and helping.

The parachute is packed in stages:

a) checking the presence, serviceability of parts of the parachute

b) verification and preparation of the PPK - U.

a) laying the main dome

b) putting the camera on the dome.

a) crimping the camera with slings

b) placing the dome in the chamber

c) laying lines in the gas chamber

d) preparing the stabilizing dome for laying

a) folding the stabilizer feathers and putting the camera on the stabilizer dome

b) locking the rings of the stabilizer feathers with the rings of the camera

c) laying the stabilizing dome and lines in the chamber

d) laying the camera with the main dome and slings on the bottom of the backpack

a) tightening the knapsack valves

b) attaching the camera with a stabilizing dome to the parachute knapsack

c) preparation and installation of PPK - U

d) charging the double-cone lock

a) preparation of the harness

c) filling out passports

d) parachute check

d) packing the parachute into a portable bag and sealing it

Laying tool: Camping cloth, hook - fork

When putting on the parachute before the jump, the portable bag is placed under the chest bridge.

After landing, you need to: unfasten the reserve parachute, pull the canopy “into the flag”, fold the lines with an “endless” loop, roll the canopy into a roll: remove the harness with the knapsack (of the main canopy) and put it in the bag with the device to the top. The satchel should divide the bag into two parts: one half of the harness fits, and the other half of the canopy with slings.

Topic number 4.

Parachute belay device.

PPK-U

PPK-U- semi-automatic parachute combined unified designed for opening the parachute knapsack or the introduction of other devices; opening the parachute after a certain period of time or at a certain height. The device is used as a belaying device on rescue, landing, reserve, training and sports parachutes, when the parachutist himself, for some reason, cannot open the parachute with the help of the pulling ring.

1. Range of response of the device:

By time - from 2 to 5 seconds;

In height - from 0.3 to 8 kilometers;

2. The device operates in the temperature range from +60 0 to -60 0 at altitudes up to 35 km.

3. The force of the power springs in the charged state is not less than 28 kg.

4. The stroke of the pulling ring is 70 mm.

5. The device is resistant to glue and dew.

6. The device is protected from debris.

7. The device is operational after being cocked continuously for 12 months.

8. The full technical resource is 1000 operations.

The main parts of the device:

2. Aneroid device

3. Clockwork

4. Exhaust device

5. Locking system

In addition, the PPK-U kit includes:

1. Flexible hairpin

2. Tool kit

3. Passport

Topic number 5

The theoretical foundations of skydiving.

Air has certain properties: mass, pressure and density. Moving in the air mass, the body experiences air resistance. The main reason that creates resistance is the vortices that form around the body during its movement. In well-streamlined bodies, vortices appear only behind the body. In poorly streamlined bodies, they are formed over the entire surface. Bodies that cause strong vortexes always experience great air resistance. As the size of the body increases, its resistance increases. Air resistance in the direction opposite to the movement of the body is called frontal resistance.

O is the force of frontal resistance.

Cx is the coefficient of resistance.

@ - air density

S is the largest cross-sectional area.

V - speed of movement

The drag coefficient is determined empirically, most often in wind tunnels. In airless space, the speed of a body falling increases in proportion to time.

The parachute deployment can be divided into three periods;

Expanding the pilot chute (stabilizing) and filling it.

Pulling the cover out of the lines and pulling the covers off the dome.

Filling the dome.

The 1st period depends little on the rate of fall and air density. This period takes 0.2 seconds.

The 2nd period depends on the speed of movement and air density and takes on average 0.3 - 0.5 seconds.

The 3rd period is the longest in time. The duration of the third period ranges from 0.5 to 1.5 seconds.

Thus, the opening of the parachute takes 2-3 seconds and the distance is 60 -90 meters, the inertial load when opening the parachute arises as a result of a rapid loss of speed and is perceived as a shock.

The larger the canopy, the less load will be when the parachute opens. After opening, the parachute falls under the influence of air currents. If there is no wind, it descends vertically, but usually there is some movement of the air mass, and the parachute carries the parachutist where the wind is blowing.

Landing - the most difficult stage of the jump, requiring perfect knowledge of the rules, composure, prudence and the ability to use a parachute and your body. The factors influencing the magnitude of the impact of the parachutist on the ground are: the rate of descent, the method of landing, the wind speed, the state of the ground, and the stability of movement. The impact characterizes the loss of speed by the parachutist.

Thus, the body weight on impact increases 17 times. And with a parachutist weighing 30 kg, it will exceed 1500 kg. But even bending your knees and torso when landing, you must do it correctly, otherwise the effect will be insufficient. It is necessary to ensure that the tension of the legs and torso corresponds to the speed of landing, in addition, in the art of soft landing, uniform tension of the mouse is very important during the entire impact.

Topic number 6

The rule of movement around the airfield.

An aerodrome is a land plot specially equipped for take-off, landing, parking, and maintenance of aircraft. The aerodrome, in order to determine the working part, must have limit signs indicating the runway (runway) and taxiway (taxiway). Near the landing site, to the left of the runway, the landing T. is laid out in white in summer and black in winter. In front and behind "T", limiters are laid out from the same panels. The "cross" is laid out from the panels - the place of the exact landing of the parachutists. Taxiways, parking areas for aircraft and technical equipment at the start, the location of people are indicated by flags and signs. From among the experienced athletes, a starting outfit is assigned: the duty officer at the start and the duty officer at the landing site. Everyone who is at the start must be located in a place specially designated for people “square” (start). You can leave it only with the permission of the instructor. It is dangerous to be outside the square, especially to sit or lie in tall grass, the driver of a car serving flights may not notice a person in the grass and run over him.

Smoking at the airport is allowed only in a designated area. It is strictly forbidden to smoke and use open fire in the vicinity of aircraft, parachutes and technical equipment. Before going along the airfield, you need to look around. In order not to get hit by a plane or a descending parachutist. If an airplane is on the way, then it is necessary to bypass it from the back, and helicopters from the front, at a distance of no closer than 10 m. Groups of people should move around the airfield only in formation. It is possible to cross the runway only with the permission of the RP (pallet manager), making sure that the plane does not take off or land. If you need to cross or move to the other side of the airfield, you need to move outside the runway, and preferably along the edge of the airfield. In this case, you should be careful in the strip of air approaches, near the beginning and end of the runway. A parachutist landing on a runway or taxiway must, having collected the parachute in his hands, quickly release it.

Topic number 7

Familiarization with the aircraft.

The An-2 aircraft was created as an "air truck", engine power 1000 hp. The maximum take-off weight is 5500 kg. Biplane, with the main landing gear in front. The main parts of the aircraft fuselage (semi-monocoque): wings, engine, landing gear, tail unit, equipment. Thanks to the power plant (engine with a propeller), it can acquire certain translational movements. In this case, the air flow flows around the wings and, thanks to the profile, a lift is created on them, capable of breaking the plane off the ground. The tail unit and ailerons are used to control the aircraft in three planes during flight. The fuselage is used to accommodate a payload, in this case, paratroopers. On board the An-2 aircraft, depending on the load, it is allowed to take up to 10 parachutists with a release. Parachutists board the plane in the reverse order of the jump order, i.e. the first to enter is the parachutist, who is the last to jump. First of all, they take places on the right side of the cargo compartment. After boarding the plane of the whole group, the releasing instructor removes the step, closes the door, hooks the carbines onto the adapters and reports to the pilot. After the climb of 700 m, the release of the unlocked devices on reserve parachutes. Jumps from the An-2 aircraft are performed both singly and in a series of two to 10 people. At the command to "get ready", the paratroopers sitting on the left side and assigned to the jump in this approach, turn with a lime tree to the door and take a preparation pose. The door is opened by the issuer. Signals for a jump are given by the pilot: "get ready" - two short siren signals; "Went" - long siren beep; "Set aside" - frequent beeps of the siren. The issuer duplicates the signals with a voice. At the command, the paratroopers "went" one after the other with an interval of 1-3 seconds, separated from the plane by a "soldier". To properly separate from the aircraft, the parachutist must place his left foot with the middle of his foot in the lower left corner of the door opening. The right leg at this moment is half a step behind and, half bent, separate from the plane, maintaining the position of the body. It is necessary to show the cadets the correct separation from the plane with a "soldier", and then practically work out this technique with each cadet

Purpose:

The D - 5 series 2 parachute is designed for training and combat jumps from military transport aircraft. It is distinguished by its high reliability in opening. Unlike other D - 5 parachutes of series 2, it has a single packing method. The parts of the parachute are inseparable - this reduces the time for collecting the material after landing.

T. T. D .:

The maximum speed of the aircraft, when making jumps - 400 km / h

The maximum height from which you can jump is 1000 meters.

The minimum safe altitude during stabilization is 3 seconds, the aircraft speed is 160 km / h - 200 meters.

The rate of descent with the weight of the parachutist - 120 kg:

a) with stabilization - 35 m / s.

b) on the main dome - 5 m / s.

The effort required to pull out the pilot chute ring is not more than 16 kgf.

Weight without belay device and bag - 13.8 kg

Complete weight - 15.5 kg

The device is used PPK - U - 240, reserve parachutes: З - 5 and З - 3

Parachute kit:

1. Stabilizing dome camera

2. Stabilizing dome

3. Connecting link

4. Camera of the main dome

5. Main dome

6. Suspension system

8. Double cone lock

9. Exhaust ring

10. PPK - U - 240

11. Carrying bag

12. Passport

STABILIZER DOME CAMERA: is designed to fit the stabilizing canopy, slings and the top of the stabilizer. The camera has a cylindrical shape, made of nylon aviazent. At the top of the camera base there is a carabiner that attaches the camera to an extension cord on an aircraft. The carabiner is attached to the camera with a 600 kg nylon tape.

In the lower part of the camera, 4 rings are sewn diametrically opposite for locking the camera with stabilizer rings. A tie cord is inserted into the hem of the upper base of the camera. A zigzag stitching tape is passed into the carabiner eyelet and stitched.

STABILIZING DOME: is designed to provide a stabilized descent of the parachutist and retrieve the camera with the canopy and lines placed in it from the knapsack. A stabilizing canopy consists of a canopy base, lines and a stabilizer. The dome has the shape of a truncated cone with an area of 1.5 m. The dome is made of nylon cloth. To ensure filling of the dome, an exhaust device is sewn into its upper part, which consists of eight pockets made of dyed canvas. On the outer side of the base of the dome, reinforcing tapes with a strength of 185 kg and circular tapes with a strength of 70 kg are stitched in the radial direction. The edge of the dome is reinforced with a hem of the fabric on the outside and nylon ribbons with a strength of 185 kg are stitched. The length of the slings is 50cm. The stabilizer consists of four feathers formed from two isosceles triangles, stitched in the center and made of nylon cloth. On each side of the feather there is a ribbon sewn onto it, with a ring for locking them with the rings sewn onto the camera of the stabilizing dome.

CONNECTING LINK: designed to connect the stabilizing canopy with the knapsack during the stabilized descent stage and with the main canopy at all stages of operation. It is made of nylon tape with a strength of 1200 kg in two folds. In the upper part, it forms a loop for attaching the stabilizer thimble. At a distance of 41 cm from the upper loop, a loop of nylon tape was sewn to connect the halyards of the flexible hairpin of the device. The lower part of the connecting link branches out to form power bands. Buckles of a double-cone lock are sewn into the ends of the power tapes. A nylon tape (1200kg) is sewn between the jumpers, forming a loop for attaching the main dome chamber to the bridles. The triangle formed from the tapes of the connecting link is closed on both sides with kerchiefs made of nylon aviazent. On one side of the gussets of the connecting link, a guide ring for the halyard of the flexible hairpin of the device is sewn. On the power tapes near the buckles there are arrows for checking the correct installation and setting the power tapes on the double-cone lock.

Connecting link length 1.03 m.

MAIN DOME CAMERA: designed to fit the main canopy and lines. The chamber has the shape of a cylinder and is made of nylon cloth, in the lower part of which an elastic ring is inserted to ensure an orderly exit of the dome from the chamber. The surface of the chamber is reinforced with two nylon strips, the first passes through the chamber from two sides, the second - from one side. The ribbons form a bridle on the camera. A nylon cord is inserted into the hem of the upper base of the camera for tightening it, on the outside there are sewn gazyry for laying lines, one central, a group of right and left gazyry. At the bottom of the chamber are two pairs of removable rubber honeycomb. An apron is sewn on the reverse side, which has four windows (eyelets) for the passage of removable honeycombs.

MAIN DOME: designed for the safe descent and landing of the parachutist. It has the shape of twenty-eight squares made of nylon cloth. Dome area 83 m 2. The lower edge of the dome is reinforced with a nylon tape gasket with a strength of 200 kg. To increase the strength of the dome, a frame made of nylon tapes with a strength of 70 kg is sewn on the outside. which, crossing, form a mesh on the surface of the dome, and around the perimeter of the dome 28 loops for attaching lines. A loop is stitched in the center of the dome - a bridle made of nylon tape with a strength of 600 kg. Slings made of nylon cord with a strength of 150 kg are attached to the dome loops with a noose loop with subsequent stitching. The second ends of the lines are tied to the four buckles of the free ends of the harness and are stitched with a zigzag stitch. To make it easier to control the stowage of the canopy, lines 1 and 28 are painted green or marked with green belt loops, and line 14 is also marked in red for stowing. The length of the lines is 9 meters. On the lower edge of the dome, to the left of the lines, their serial numbers are indicated. There is a factory mark between lines 28 and 1.

SUSPENSION SYSTEM: is designed for comfortable placement of a parachutist in it and is a connecting link between the parachutist and the canopy. It provides an even distribution of the load on the skydiver. The suspension system is made of nylon tape with a strength of 1600 kg and

Comprises:

Metal half rings.

2. Loose ends.

3. Flexible hose.

4. Curved buckles.

5.2 x back-shoulder grips.

6. Main strap.

7. Pull-ring pocket.

8. Chest bridge.

9. Brace for attaching a reserve parachute.

10. Half-belt.

11. Rectangular buckles.

12.2 x leg loops.

JACKET: It is designed for laying a dome with slings laid in the chamber, parts of the free ends of the harness and placing a safety device in it, made of nylon aviation tape and consists of a bottom, right and left valves. The bottom of the knapsack is double, a stiffening frame is inserted into it. On the outside, at the top of the stiffening frame, there is a two-cone lock. There are two windows at the top of the frame. At the upper base of the bottom of the knapsack, on the left side, a flexible hose for the pull-ring cable is sewn. At the bottom of the knapsack, on the outside, a valve is stitched to cover the double-cone lock. On the outside, a pocket for a passport is sewn on the left kerchief, on the right flap a pocket is stitched with ties for the device and a tape with a safety valve for the halyard of a flexible pin, and a rubber honeycomb is attached to the upper part of the right flap. There is a semicircle in the upper part of the bottom of the backpack.

PORTABLE BAG: is intended for packing a parachute into it during storage and transportation. Made of airborne cargo.

PARACHUTE DEVICE: designed for automatic opening of a double-cone lock, consists of a main body, a hose and a cable with a shackle. We will study it in more detail in further lessons.

PASSPORT: is designed to record information about the acceptance, transfer, operation and repair of the parachute. The passport is an integral part of the parachute. The rules for maintaining a passport are set out in it.

CHAPTER 2.

^ TRAINING PARACHUTES

PARACHUTE D-1-5U

The D-1-5U guided parachute (Fig. 11) is designed for training jumps.

1. With a total weight of the parachute and parachutist of 120 kg, the parachute design provides:

─ reliable operation at an altitude of up to 1000 m, both when it is immediately put into operation at a level flight speed of up to 250 km / h, and with any delay in opening the backpack, while the maximum overloads that occur at the time of filling the canopy do not exceed 10g;

─ the minimum jump height from a horizontally flying aircraft at a flight speed of 180 km / h with the immediate introduction of the parachute into action ─ 150 m;

the average vertical rate of descent, reduced to the standard atmosphere, measured at the site 0-35 m from the ground, ─5.1 m / s;

─ stability when descending; parachute control with two control lines;

─ canopy turn and horizontal movement of the parachutist in the process of descent, moreover, the canopy turns 360 ° in any direction in a time of no more than 18 s when one control line is pulled and the parachute moves horizontally forward at an average speed of 2.47 m / s;

─ the use of a semi-automatic parachute deployment device PPK-U-575A or

KAP-ZP-575;

─ detaching the dome from the harness both on the ground and in the air; use of a reserve parachute of type 3-2, 3-Sh, 3-3, 3-4, 3-5;

─ the effort required to pull out the pulling ring or the pulling cable, both with forced opening of the knapsack, and when manually, ─ no more than 16 kgf;

─ technical resource ─ 200 applications (to be specified during operation) subject to timely repair and replacement of the dome cover.

2. Dimensions of the packed parachute, mm:

length ─ 570 + 20;

width ─ 377 + 20;

height ─ 262 + 20.

Rice. 11. General view of the opened parachute D-1-5U

3. The weight of the parachute is not more than 17.5 kg with a semi-automatic device without a carrying bag.

The performance data of the parachute parts

1. The stretching rope is a nylon tape LTKMkrP-27-1200 with a strength of 1200 kgf and a length of 3000 mm with two loops (the second loop is at a distance of 1400 mm from the first). To protect the pull rope from burns, a cover made of cotton tape LHBMkr-35-260 is put on it in the form of a hollow hose. The same covers are worn on all rope loops and on the carabiner.

2. The retracting ball parachute consists of a parachute base and a spring mechanism. The hemispherical part is made of nylon mesh fabric, and the conical part is made of nylon fabric (art. 56005krP). The upper part of the parachute is also made of nylon fabric. Parachute area 0.22 m².

3. The dome cover is made of orange B percale (art. 7015kr), has the shape of a 5280 mm sleeve, one pair of double removable honeycombs, 11 pairs of non-removable rubber honeycombs, an apron with two windows for the passage of double rubber honeycombs.

4. The round dome, made of P percale (art. 7019), consists of four sectors with a total area of 82.5 m². The pole hole diameter is 430 mm. The canopy has 28 slings, 8870 mm long, made of ShKhBP-125 cotton cord with a strength of 125 kgf. Longitudinal holes are arranged on the panels of the dome between lines No. 27 and 28, 28 and 1, 1 and 2. To control the canopy, control lines are mounted to lines No. 26, 27, 28 and 3, 2, 1.

^ Rice. 11A Dome D-1-5U in plan

1 ─ Weeds; 2 ─ Reinforcing frame; 3─Reinforcement tape; 4 ─ Holes

5. The suspension system made of nylon tape LTK-44-1600 with a strength of 1600 kgf is equipped with OSK locks. To correctly attach the risers to the harness locks, the rear risers are marked with the words,. The length of the free ends of the suspension system is 560 mm.

6. The parachute knapsack is made of advice A (art. 6700) and consists of a bottom and four valves. The material of the ring replacing the middle cone is a silk cord ШШ-80. The length of a single knapsack rubber with pendants is 370 mm, and a double one is 385 mm.

7. Flexible hoses from a metal sleeve are covered with cotton tape

ЛХХ-40-130, ends of hoses with tape are tucked into caps.

Length of flexible hoses ─ 515 mm.

8. The pull-out ring consists of a body, a cable, three pins and a stopper. Trapezoidal body made of 7 mm red steel wire. The cable pins are spaced 150 mm apart. The first hairpin, counting from the ring, has a length of 38 mm, the rest are 32 mm each. The length of the cable from the end of the last pin to the stop, inclusive, is 1070 mm.

9. Exhaust ring with a rope loop is designed to deploy the parachute in case of breakage or non-snagging of the rope loop and consists of a ring, rope, loop and stopper. The length of the cable from the loop to the stopper, inclusive, is 785 mm.

10. The pull cable has three pins at one end and a loop at the other. The rope loop is braided with a cotton cord ShKhB-40. The studs are spaced 150 mm apart. The length of the first stud is 38 mm, the rest are 32 mm each. The length of the pull cable from the loop to the last stud inclusive is 1015 mm.

11. A protective cover for the exhaust cable made of raincoat fabric (art. 3101kr), has the shape of a sleeve with a length of 990 mm. There is a loop at one end, which is connected by a noose loop to the loop of the pull cable.

12. The PPK-U-575A or KAP-ZP-575 device has a 575 mm long hose. Loop length ─ 19 mm, cable length ─ 732 mm. The halyard of a flexible hairpin is not included in the set of the device, but is included in the parachute set.

13. A break-off sling ─ made of cotton cord ShKhB-60, bent in half and stitched with a zigzag stitch. In this case, a loop is formed on one side of the breaking line, on the other there are two ends of the cord 505 and 605 mm long. The loop attaches to the bridle of the dome and the ends of the sling to the loop of the trailing rope. The ends of the breaking line are connected so that when one end of the breaking line is taut, the other has a slack equal to a quarter of the stretched end of the line.

14. The halyard of the flexible hairpin is made of a nylon cord ShKP-200 with a strength of 200 kgf in two additions and ends with loops, one of which (noose loop) is mounted to the flexible hairpin of the device, the other to the end loop of the stretching rope. The length of the halyard of the flexible pin is 130 mm.

15. Carrying bag of rectangular shape, made of advice A (art. 6700), has two carrying handles. Bag dimensions 600x260x740 mm.

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

The passport is an integral part of the parachute.

^ PARACHUTE D-5 SERIES 2

The parachute (Fig. 12, 13) is intended for training jumps from transport aircraft.

^ Rice. 12. Diagram of D-5 series 2 parachute deployment:

1 ─ stabilizing dome camera; 2 ─ stabilizing dome; 3 ─ connecting link; 4 ─ main dome chamber; 5 ─ main dome; 6 ─ satchel

Rice. 13. General view of the packed parachute D-5 series 2:

1 ─ carbine; 2 ─ check-in tape

The performance data of the parachute

1. With a total weight of a parachutist with parachutes not exceeding 120 kg, the D-5 series 2 parachute provides:

─ at least 80 applications at a flight speed of up to 400 km / h on the instrument and at altitudes up to 8000 m with the immediate introduction of the stabilizing parachute into action and subsequent descent on it for 3 s or more;

─ stability when descending;

─ the possibility of stopping the descent on the stabilizing canopy at any time by opening the double-cone lock with the pulling ring;

- the minimum safe altitude for use from a horizontally flying aircraft at a flight speed of 160 km / h on an instrument with stabilization of 3 s ─ 200 m, while the descent time on a fully filled canopy of the main parachute is at least 10 s;

─ the average vertical speed of descent, reduced to the standard atmosphere and the total weight of the parachutist with parachutes, 120 kg, in the section 30-35 m from the ground ─ no more than 5 m / s;

─ rapid loss of height when sliding without the phenomenon of folding the canopy;

─ the use of two safety devices (main and backup) with a hose length of 240 mm;

─ quick canopy extinguishing after landing when disconnecting the right free end of the harness by means of the OSK-D lock;

─ the use of reserve parachutes of type 3-2 or 3-5;

─ the effort required to open the double-cone lock with a pulling ring or a device ─ no more than 16 kgf.

2. Overall dimensions of the packed parachute, mm: length without a stabilizing dome in the chamber, mounted on a knapsack, ─ 595 + 10;

width without parachute device ─ 335 + 10; height ─ 220 + 10.

3. The weight of the parachute without a portable bag and devices is not more than 13.8 kg.

The performance data of the parachute parts

1. The camera of the stabilizing dome is cylindrical, made of nylon avisent (art. 56039). Chamber length 300 mm, folded width ─ 190 mm. In the upper part of the camera there is a carbine, which is attached to the camera with a nylon tape LTKkrP-26-600 with a strength of 600 kgf. In the lower part of the chamber, four NP-25-8 rings are sewn diametrically opposite to lock the chamber with the stabilizer rings. A nylon cord ShKP-150 with a strength of 150 kgf is inserted into the hem of the upper base of the camera to tighten the upper base of the camera. A nylon tape LTKkrP-26-600 with a strength of 600 kgf was passed into the carabiner eyelet and stitched with a zigzag stitch to secure a rubber honeycomb mounted on a knapsack. Chamber weight ─ 0.155 kg.

The camera is designed to fit the stabilizing canopy, slings and the top of the stabilizer.

2. The stabilizing dome is made of nylon cloth (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 in its pole part, consisting of eight pockets, the material for which is a dyed calendered cloth (art. 56005krPK or 56005krP). On the outer side of the dome base, reinforcing strips LTKP-15-185 with a strength of 185 kgf and circular ribbons LTKP-13-70 with a strength of 70 kgf are stitched in the radial direction. On the dome there are 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 sling No. 2, 3, 6, 7, 10, 11, 14 and 15 ─ 500 mm.

On each side of the feather there is a ribbon with a ring for locking with rings sewn on the camera of the stabilizing dome.

The weight 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 additions, designed to connect the stabilizing canopy with a knapsack at the stage of stabilized descent and with the main canopy at all stages of work.

Jumpers made of LTK-44-1600 nylon tape 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 bridges, forming a loop for attaching the chamber and the main dome to the bridles. The triangle formed from the tapes of the connecting link is closed on both sides with kerchiefs made of gray nylon avisent (art. 56039).

Connecting link weight ─ 0.275 kg.

In the hem of the upper base to tighten the camera

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

Chamber weight ─ 0.44 kg.

5. The canopy (Fig. 14) made of nylon cloth (art. 56009P) has the shape of a twenty-octagon and is designed for safe descent and landing of the parachutist. The area of the dome is 83 m².

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

On the dome, 28 slings are attached from a nylon cord with a strength of 150 kgf and a length of 9000 mm.

Dome weight ─ 8.136 kg.

Rice. 13. The shape of the canopy of the D-5 series 2 parachute in plan.

The numbers in a circle are the numbers of the lines, the numbers inside the circle are the numbers of the squares:

1─ panels of the dome; 2, 4 ─ reinforcing frame; 3 ─ sling loops.

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

The harness is equipped with an OSK-D lock and consists of the following main parts: a main strap with back-shoulder loops, one pair of detachable free ends, and leg loops.

Detachable buckles are attached to the free ends of the harness. On the reverse side of the main strap (on the right - below the OSK-D lock, on the left - below the curved buckle), buckles for fastening the belts of the cargo container are sewn with the help of a nylon tape LTKkrP-43-800 with a strength of 800 kgf. In the lower part, the main strap is bifurcated, the ribbons are sewn end-to-end, and a cotton pad is sewn on them for comfortable sitting in the harness.

In the middle of the lower part of the main strap, from the outside, a loop of nylon tape with a strength of 800 kgf is sewn to fasten the link of the cargo container.

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

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

Suspension system weight 2 kg.

7. A satchel made of nylon avisent consists of a bottom, right and left valves. The bottom of the knapsack is double, a stiffening frame is inserted into it.

Hose length ─ 380 mm.

The weight of the knapsack is 2 kg.

8. A pull-out ring with a cable is designed to open the double-cone lock. It is made of steel bar and consists of a body, stop, cable and wire loop.

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

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

Instrument hose length 240 mm, cable length 397 mm, loop length 19 mm, flexible hairpin halyard length

The mass of the belaying device is 0.95 kg.

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

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

Hose length ─240 mm, cable length ─ 397 mm, loop length ─ 19 mm, flexible hairpin halyard ─ 360 mm.

The mass of the device is 0.95 kg.

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

12. Portable bag of rectangular shape, made of cargo advices.

Bag dimensions ─ 260X740X600 mm. The weight of the bag is 0.725 kg.

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

Designed for training jumps from transport aircraft from a height of up to 8,000 meters at an aircraft speed of up to 400 km / h

PARACHUTE D-5 SERIES 2

D-5 series 2 parachute deployment scheme

1 ─ stabilizing dome camera; 2 ─ stabilizing dome; 3 ─ connecting link; 4 ─ main dome chamber; 5 ─ main dome; 6 ─ satchel

General view of the packed parachute D-5 series 2

1 ─ carbine; 2 ─ check-in tape

The performance data of the D-5 series 2 parachute

1. With a total weight of a parachutist with parachutes not exceeding 120 kg, the D-5 series 2 parachute provides:

at least 80 applications at a flight speed of up to 400 km / h on the instrument and at altitudes up to 8000 m with the immediate introduction of the stabilizing parachute into action and subsequent descent on it for 3 s or more;
resistance to decline;
the possibility of stopping the descent on the stabilizing dome at any time by opening the double-cone lock with the pulling ring;
the minimum safe altitude for use from a horizontally flying aircraft at a flight speed of 160 km / h on an instrument with stabilization of 3 s ─ 200 m, while the descent time on a fully filled canopy of the main parachute is at least 10 s;
the average vertical speed of descent, reduced to the standard atmosphere and the total weight of the parachutist with parachutes, 120 kg, in the section 30-35 m from the ground ─ no more than 5 m / s;
rapid loss of height when sliding without the phenomenon of folding the canopy;
the use of two safety devices (main and backup) with a hose length of 240 mm;
quick extinguishing of the canopy after landing when disconnecting the right free end of the harness by means of the OSK-D lock;
use of reserve parachutes of type 3-2 or 3-5;
the effort required to open the double-cone lock with a pulling ring or a device is no more than 16 kgf.

2. Overall dimensions of the packed parachute, mm: length without a stabilizing dome in the chamber, mounted on a knapsack, ─ 595 + 10;

width without parachute device ─ 335 + 10; height ─ 220 + 10.

3. The weight of the parachute without a portable bag and devices is not more than 13.8 kg.

The performance data of the D-5 series 2 parachute parts

1.Stabilizing dome camera cylindrical, made of nylon avisent (art. 56039). Chamber length 300 mm, folded width ─ 190 mm. In the upper part of the camera there is a carbine, which is attached to the camera with a nylon tape LTKkrP-26-600 with a strength of 600 kgf. In the lower part of the chamber, four NP-25-8 rings are sewn diametrically opposite to lock the chamber with the stabilizer rings. A nylon cord ShKP-150 with a strength of 150 kgf is inserted into the hem of the upper base of the camera to tighten the upper base of the camera. A nylon tape LTKkrP-26-600 with a strength of 600 kgf was passed into the carabiner eyelet and stitched with a zigzag stitch to secure a rubber honeycomb mounted on a knapsack. Chamber weight ─ 0.155 kg.

The camera is designed to fit the stabilizing canopy, slings and the top of the stabilizer.

2.Stabilizing dome 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 in its pole part, consisting of eight pockets, the material for which is a dyed calendered cloth (art. 56005krPK or 56005krP). On the outer side of the dome base, reinforcing strips LTKP-15-185 with a strength of 185 kgf and circular ribbons LTKP-13-70 with a strength of 70 kgf are stitched in the radial direction. On the dome there are 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 sling No. 2, 3, 6, 7, 10, 11, 14 and 15 ─ 500 mm.

On each side of the feather there is a ribbon with a ring for locking with rings sewn on the camera of the stabilizing dome.

The weight of the stabilizing dome is 0.57 kg.

3. Connecting link made of nylon tape LTKMkrP-27-1200 with a strength of 1200 kgf in two folds, designed to connect the stabilizing canopy with the knapsack at the stage of stabilized descent and with the main canopy at all stages of work.

Connecting link weight ─ 0.275 kg.

4. Main dome camera made of gray nylon cloth (art. 56023krP), designed 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 an orderly exit of the main dome from the chamber.

In the hem of the upper base to tighten the camera

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

Chamber weight ─ 0.44 kg.

5. Parachute canopy D-5 series 2 made of nylon cloth (art. 56009P) has the shape of a twenty-octagon and is designed for safe descent and landing of a parachutist. The area of the dome is 83 m².

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

On the dome, 28 slings are attached from a nylon cord with a strength of 150 kgf and a length of 9000 mm.

Dome weight ─ 8.136 kg.

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

The numbers in a circle are the numbers of the lines, the numbers inside the circle are the numbers of the squares:

1─ panels of the dome; 2, 4 ─ reinforcing frame; 3 ─ sling loops.

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

The harness is equipped with an OSK-D lock and consists of the following main parts: a main strap with back-shoulder loops, one pair of detachable free ends, and leg loops.

Detachable buckles are attached to the free ends of the harness. On the reverse side of the main strap (on the right - below the OSK-D lock, on the left - below the curved buckle), buckles for fastening the belts of the cargo container are sewn with the help of a nylon tape LTKkrP-43-800 with a strength of 800 kgf. In the lower part, the main strap is bifurcated, the ribbons are sewn end-to-end, and a cotton pad is sewn on them for comfortable sitting in the harness.

In the middle of the lower part of the main strap, from the outside, a loop of nylon tape with a strength of 800 kgf is sewn to fasten the link of the cargo container.

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

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

Suspension system weight 2 kg.

7.Knapsack from a nylon avisent consists of a bottom, right and left valves. The bottom of the knapsack is double, a stiffening frame is inserted into it.

Hose length ─ 380 mm.

The weight of the knapsack is 2 kg.

8.Exhaust ring with a cable designed to open a double-cone lock. It is made of steel bar and consists of a body, stop, cable and wire loop.

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

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

Instrument hose length 240 mm, cable length 397 mm, loop length 19 mm, flexible hairpin halyard length

The mass of the belaying device is 0.95 kg.

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

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

Hose length ─240 mm, cable length ─ 397 mm, loop length ─ 19 mm, flexible hairpin halyard ─ 360 mm.

The mass of the device is 0.95 kg.

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

12. Carrying bag rectangular, made of cargo advices.

Bag dimensions ─ 260X740X600 mm. The weight of the bag is 0.725 kg.

13. Parachute passport is designed to record information about the reception, transmission, operation and repair of the parachute.