SOV - Zvezda K-36D

Zvezda K-36D


The birth of the basic version of the Zvezda K-36D catapult seat dates back to the late 1960s, when development work was underway on the new Soviet fighter Mikoyan Gurevi. MiG-25 Foxbat. One of the new components that was to be developed for this aircraft was the new catapult seat. The claims were helpful. p & # 345; ísné. The seat should be as light as possible and have reduced dimensions compared to the previous seats, which is why it should be in a tight cockpit [url].=/topic/view/23949/] MiGu-25[/url] could not be bet on the original, the intended size of the KS-3/4 seat, which was used on the aircraft; Suchoj Su-7.

OKB Zvezda has competed for a new seat with the project revolutionary. designed seats K-36. The new seat was designed specifically for you. for the smallest possible dimensions and weight while maintaining high reliability. However, its development also occurred as a result of fail & # 367; tests (failed trial versions K-36A, K-36B and K-36C) to a great delay, which eventually led to the replacement of the K-36 set at MiGu-25 starší osv & # 283; d & # 269; enou seda & # 269; kou KM-1 z MiGu-21. A new chance for the final series & # 283; production version of the seat K-36 marked K-36D, but it happened soon when OKB Suchoj decided to use the seat of the completed aircraft (in 1972), which used it in the series of its aircraft. ( Su-17, Su-20, Su-22, Su-24, Su-25, [url = http : //forum.valka.cz/viewtopic.php/t/747] Su-27[/url], ...) and is mounted in them in various modifications to this day. The seat was installed and installed in fighter jets. MiG, p & # 345; esn & # 283; ji MiG-29 Fulcrum a MiG-31 Foxhound.

Technical description of the K-36D seat:

The basic frame of the K-36D catapult seat is made of durable sheet steel (the frame is made of the main pressed plate and a pair of side plates holding the shape of the seat), which is on the inside the back is completed on a light armor. It is attached to the upper part of this skeleton by a deflector (the deflector allows the catapult from the aircraft to be thrown away and not thrown away). the cockpit cover breaks and protects the pilot's head in case of need) equipped with a hollow headrest (its rear part is also equal to 382). armored vehicles), containing emergency equipment for the pilot and pharmacy. The front part of the header is the black box. There are two doors on the sides of the headboard. cylindrical housings housing a pair of retractable stabilizing pylons, which are provided at the ends with stabilizing parachutes.

Under the headboard, a cavity is created in the seat cube. is behind the alcove belt on a pair of rescue parachutes. for the pilot (main and backup). These parachutes are followed by parachute harnesses connected to the main seat belts of their. The mechanization is located on the sides of the parachute box. The parachute harness on the seat of the K-36D is designed to be partially (the pilot puts on the main harness before boarding the aircraft where he gets to the plane). 283; then connects him to a series of short parachute harnesses).On the outside The skeleton of the parachute box is placed on a pair of tilting restraints. throwing hands preventing the pilot from leaving the catapult position.

The basis of the seat part of the seat is the skeleton-shaped space in which the CO2-inflated rescue boat and the rest of the pilot's emergency equipment are stored. This space is covered by a sliding rail plate on which the pilot is sitting and the pilot's emergency equipment is attached to it by means of the main seats and parachute harness and after the ejection of the pilot and detachment of the pilot is released from the seat and to the landing under the pilot hangs on the station. # 283; two-meter rope & # 283;). On the left & # 283; The seat cushion is located on the emergency air (maintains the pressure of the suit at a high altitude catapult) and the emergency oxygen bottle of the pilot. The front page The seat parts of the seat are fitted with two leg cuffs (these cuffs are wrapped around the pile legs and The catapults are pulled in the contour area and fixed against the seat (s) of the seat (s) with winches in the corners of the seat. parts of the seat. In the middle of the seat part between the pilot's legs there is a retractable column with a pair of pull-out catapult sequences. This post, when pulled by the drawbars, extends to the height of the pilot's chest and prevents him from falling out of the seat in the event of failure. lashing strap failure & # 367 ;. On the left & # 283; The seat part of the seat is placed on a console with quick-release couplings of the pneumatic and electrical system of the suit (if the pilot's suit is electrically heated as for example url=/viewtopic.php/t/23949] MiGu-25[/url]), oxygen masks (air breathing tube and radio communication system) and water The electrical system of the seat.

The solid-fuel rocket engine and seat guide rails are located at the rear. seat skeletons. There are also two doors. Nozzle stabilization for proper alignment of the seat before extending the stabilization parachute (This system is often used in later versions of the K-36DM, and dismounted in export versions of the seat).

The catapult sequence of the K-36 seat is as follows (begins with the pull of the catapult seat handle):

1) The seat tensioners and seat belts are pulled and the pilot is fixed to the seat.
2) The front seat post extends and the restraint folds down. throwing his hands (the pilot was instructed to keep his hands on the catapult handrails). The catapult seat system discards the cockpit canopy and checks that it is indeed discarded (if the cover could not be discarded, the head deflector will extend)
3) The rocket engine seat is engaged and the brakes on the guide rails are released.
4) The seat and the pilot are leaving the aircraft. Okay & # 382; it & # 283; pylons with stabilizing parachutes are extended.
5) After stabilization and the necessary braking of the seat at the top of the ballistic curve, the lashing straps are released. ; and boxes with emergency equipment for the pilot, who separates himself from the seat.
6) The pilot's main parachute opens automatically (backup must be opened by the pilot). 382; is secured by a barometric opening device set at a height of 500 meters and inflates the rescue boat.

In the basic version of the K-36D, the seat has characteristics of 0-0 (in the case of a catapult, the height of the minimum height is required). # 283; 100 meters & # 367;)



Sources:
www.ejectionseat.com
www.ejectioncolour.com
Author's archive
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#181854 Version : 0
Detail of the upper part of the seat K-36D mounted in the first versions of the aeroplane Sukhoi Su-27. Clearly you can make out of the sleeve for stabilizing retractable pylons (along the sides of the záhlavníku) and raised the limiter scatter hands (under pylonovými bushings). The photo comes from the server http://www.lindenhillimports.com ..
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#181859 Version : 0
Sketch of the seat in the position after the departure of the aeroplane. It is worth noting the stabilizing pylons of the seat and clamping motion elements of the pilot. The sketch comes from the server www.suchoj.com ..
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#181861 Version : 0
Seat K-36D in the airplane Mikoyan Gurevich MiG-29. The photo comes from me already unknown server (obtained about a year ago). The author is sorry for his anonymity..
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#181864 Version : 0
Seat K-36 DM exempted from lietadla vojenskom múzeu in Piešťanoch..
SOV - Zvezda K-36D - Foto: Vlastná návšteva v múzeu, 29.5.2010

Foto: Vlastná návšteva v múzeu, 29.5.2010
SOV - Zvezda K-36D - Foto: Vlastná návšteva v múzeu, 29.5.2010

Foto: Vlastná návšteva v múzeu, 29.5.2010
SOV - Zvezda K-36D - Foto: Vlastná návšteva v múzeu, 29.5.2010

Foto: Vlastná návšteva v múzeu, 29.5.2010
SOV - Zvezda K-36D - Foto: Vlastná návšteva v múzeu, 29.5.2010

Foto: Vlastná návšteva v múzeu, 29.5.2010
SOV - Zvezda K-36D - Foto: Vlastná návšteva v múzeu, 29.5.2010

Foto: Vlastná návšteva v múzeu, 29.5.2010
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#370366 Version : 0
The 1st degree pyromechanism is charged with PK-16M pyrocartridges and the pyromechanism head is charged with UDP-2-1 electropropyrons.
Stage 1 works for 0.2 seconds and gives the seat an initial velocity of 13.6 m/s.
Stage 2 consists of a dust jet engine with a nozzle and a pyromechanism of a lighter with a mechanical head and a power supply.
The 2nd stage is lit when the seat is raised along the guide rails to a height of 1075 mm.
The 2nd degree body is charged with PZ-AM dust components and the pyromechanism (lighter) with a PV-35 cartridge (lighter).
The 2nd stage works for 0.4 seconds and develops a thrust of 3300 kg.


source: notebook from VLA Košice
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#426168 Version : 0

Diskuse

Good day friends of the ejection seats.
I would like to inform you that in the technical description of the activities of the entire procedure, the air-To-36 D have large irregularities.I could help you fix it,since I'm a few years on these ejection seats worked.Maybe I could get even a few quality photos,as a whole, and detail.The truth is,that at the time when we these seats were in use,so they weren't even advanced digital cameras and the overall picture too couldn't,but perhaps I can find something..
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#228134 Version : 0
I'm sure you'd be interested.I'll send you a PM.We'll talk more.
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#228135 Version : 0

Citace - tomas3127 :

some pyropatrons used in K-36 seating

The PK-16 pyropatron is "responsible" for ejecting the seat from the cabin, then igniting the rocket motor.
URL : https://www.valka.cz/SOV-Zvezda-K-36D-t46534#245343 Version : 0
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