Russian 45mm AP with a telescopic shot

Russian 45mm AP with a telescopic shot
45-mm automatic gun with a telescopic ammunition

 

  Ten years ago, after the first demonstrations of public BMPT "Terminator", armed with two 30mm 2A42 automatic cannon in the media and the Internet burst into heated debate about whether the choice caliber AP and the need to increase, not only for the East, but also for the navy. For a broad, almost monopolistic distribution both in the USSR and Russia AP caliber of 30 mm to thank Arcadia IG Shipunova. Academic, Ph.D., chairman and chief designer of the Tula KBP, Hero of Socialist Labor, Laureano many state, Lenin, government, and other prizes, Arkady G. in special needs no introduction. Talented "gunner", the main work of life which is the unification of 30mm caliber for the AP in aviation, NE and navy. At the time, it was a very innovative solution. Soviet 30mm ammunition and guns for a long time, as they say, had no peers. But time, time, time … Time is running out and the progress does not stand still. Well, as you know, a monopoly in any case is not conducive to progress. Moreover, the harm. With time, the 30 mm cannon began to show the disadvantages associated with the fact that the likely opponents are not sitting idle, and quickly builds up protection of their armored vehicles, took on a new supply of protective equipment for their soldiers. By the mid 80-ies of XX century, it became clear that at least for the East, a more powerful automatic weapon at a larger ammo. Work on the creation of a new 45mm automatic cannon developed for BMPT and new BMP was charged CPP and, of course, was successfully sabotaged. For, otherwise, what Arkady G. picked up awards and titles? What are the shortcomings were found in AP and 30mm ammunition? It turned out that at grazing shooting small object at the surface of the earth, the probability of a direct hit in the area of the vertical projection of the target is negligible. The bulk of the shells scattered around and falls to the ground. Fragmentation high-explosive, incendiary in itself is inefficient due to the small explosive charge weight (48.5 g), a different type of projectile body and, as a result, a small number of lethal fragments (approximately 300 units with a mass of 0.25 g and more ). When the shock is undermining the soil fragmentation effect decreases dramatically as performance impact fuze does not provide instantaneous breaking of the shell on the surface. As a result, when firing at the ground, especially a loose structure (plowing, peat, sand), and the snow at the time of breaking the projectile recess is a significant and as a result, most of the intercepted fragment. In these circumstances, could help the realization of the trajectory (the air) to break the projectile over the target. However, the implementation of the trajectory of fuse in the caliber of 30 mm at an acceptable cost, then it was almost unreal. Now, with the passage of time and the development of technology and hardware components, it was possible, but still the cost of the shot is very high. With armor penetration, things just are not the best way. Most modern Russian 30mm armor-piercing projectiles, "Kerner" and "Trezubka" created in SSPE "device" to easily defeat armored targets, to put it mildly, not quite able to cope with modern infantry fighting vehicles and armored personnel carriers with heavy reservations.

These circumstances and causes in the future feasibility of automatic guns transition to a larger size (40-50 mm, and under certain conditions, and 60-80 mm). The most desperate, firm and consistent supporter of this trend yavlyaetsyaVladimir A. Odintsov. At the time, he was very actively championed the idea of increasing the caliber of the AP in the press — the journal "Arms and equipment," the newspaper "Military-Industrial Courier." Through these publications and tough debate around them, Vladimir earned media space of a few mixed reputation stimulus "ocean of tranquility and complacency." Who would not like a publication Odintsov, however, given the track record this man did not pay any attention to them is impossible. Moreover, that tend to increase the caliber of the AP more clearly demonstrated in the West. There, the first breakthrough in this way made the firm "Bofors" which launched in the production of BMP CV-9040 with a 40-mm gun L70. In the UK there is a modernization of infantry fighting vehicle "Warrior" by replacing the 30-inch guns RARDEN 40-mm cannon CTWS with telescopic cartridge. Intensive development of the 40-mm guns for the BMP lead the company "Ellayent Teksistemz" (USA), GIAT (France), "Boeing" (bikalibernaya gun MK 40 30/40 mm "Bushmaster II" and a 40-mm gun "Bushmaster IV") . In an effort to increase the caliber of guns, designers are faced with the mass of the apparent difficulties. For example, the installation of new weapons may be hampered by rigid TK size and weight of the tower and the diameter of its overhead, under the terms of the location of ammunition. One of the neat ways to solve these problems is the introduction of a fundamentally new weapon. So-called "telescopic cartridge." In them, unlike conventional shell is placed inside the sleeve walls are made of a propellant. At present there are "telescoping" of two types of ammunition. The first propellant is located in the space defined by the wall of the sleeve and the plastic sleeve which serves as a guide for the projectile. After operation of the capsule is initiated explosive charge and a projectile moving in the guide sleeve, releasing four holes in its bottom through which to enter the space zasnaryadnoe powder gases. In the cartridge of the second type as a guide for a projectile using a molded explosive. Externally such cartridges resemble a beer can. Their use is much more effective than conventional ammunition. Teleskopichekie shots compact, with other things being equal, they can accommodate a more powder, more comfortable and more compact in the packing, which increases the Ammunition. On the other hand, new telescopic shots require a fundamentally different guns. Cannon arranged under them particularly: Feed shots, as well as recovery cartridges, is the side with a rotating drum. The drum is on the axis of the pins, so it does not move when lifting / lowering of the gun. The mechanism has a low risk of power failures and is very compact. Some argue that the ammunition supply side leads to a stabilization of guns, there is a low margin of safety gun and point to the high cost of ammunition. But, in this case, the high cost is justified by the high caliber and therefore less fuel shots to kill the enemy. Besides the high cost of this largely imaginary. In the case of large-scale series production, the cost of these shots will not be much more expensive than the "classic" 30-millimeter. However, everything is so simple and easy to look only in words but on paper. In practice, the work of a telescopic shots, working out of a gun, ammo, for example in the U.S., is the mid-1970s and only recently been developed 40-mm telescopic cartridge for a modernized former 30-mm cannons Bushmaster II. Ammunition is submerge deeper into the liner core and length equal to 173 mm (as 30h173 mm gauge). To use it, the Americans did not make a whole new gun. Instead, they just have seriously altered the original design tools. 40mm automatic gun with a telescopic CTWS shot, now modernized British "Warrior" was born the same for a long time and muchitelno.CTWS — Cased Telescoped Weapon System — This project is supervised by CTA International, the union Nexter (former GIAT) and British Aerospace (in equal parts) . Ammunition used are very short, their size is 40h255 mm. However, armor piercing projectiles such commensurate with the "classical&qu
ot; shells 40 mm Bofors guns or 50-mm (3 in all cases, a similar composition of the propellant). The first part of investigations in this direction have been published in the book "Jane, s Armour and Artillery Upgrades" for 1995-1996.  

 

40h255-mm telescopic shot, core and punched him a steel block

 CTA International includes subsidiaries in France and the UK, and they in turn work closely with the Defense Agency and the Computing Research (DERA) in the UK and with the Office of terrestrial systems and information (DSTI) in France. The first demo gun CTWS was completed in 1991, and built a prototype of the next year.

 

CTWS gun and ammo for it

 The decision to upgrade the "Warrior" with the installation of gun CTWS took place only in the mid-2000s. Since 2007, a competition was held and the selection of candidates for the fabrication of the tower under this gun. The first contract was issued only last year, 2011. In addition, the gun CTWS now planned as a new French weapons and light combat vehicles. As you can see, this is a new trend has been very challenging, but at the same time and very promising business. Well, what do we have in Russia? It turns out we have here is not so bad. With the departure from the scene A.G.Shipunova, and greater attention to the defense of the Government of the Russian Federation, it became possible to implement new ideas and looking at us. Do not you listen to the "cries" Odintsov, not to the "voice of reason", but anyway, and Russia has finally started the development of large-caliber machine. During World War II proved to be a very good 45mm anti-tank gun. Even then, in 1941, 43gg had the idea of making based on it including automatic cannon to equip tanks. Since this caliber, became like a habit for us. Under him, and began to make the new system. Who is the developer of the telescopic gun and ammunition for it — I will not lie — I do not know. I will not speculate, and speculate. Information on it, for natural reasons, is extremely small, even smaller images. The first picture is "lit up" as an illustration to the patent, "Kurgan". It showed one of the early versions promising BMP, which has become now known as "Kurganets-25."

Something else that could extract from a public presentation for Airborne, so become aware of some performance characteristics.
The performance harakteristikiPushka — automatic, single-barrel with a separate 2-way

Power patronamidvuh appointments

Rate of fire, rds. / Min ……………………………………. ………………………………………. 150 … 200Massa gun kg 300 … 350

Types of ammunition ……………. armor-piercing rounds of ammunition and high-fugasnogozazhigatelnogo action in magazines capacity of 4 and 5 rounds

Cartridges …………………………………………. ………………………………….. unitary, telescopic

Mass, kg 2.7 (OFZ), 3.6 (BPS) Shells — stabilized rotation

Mass, kg 1.3 (OFZ), 0.67 (BPS)

Explosive weight, kg 0.17

Weight of core kg ………………………………………. ………………………………………….. …. 0.42 (BPS) Muzzle velocity, m / s ………………………………. …………………… 1640 (BPS), 850 (BFL)

Armor penetration, mm — BPS 150 (L = 1500 m)

Some time later, in early December 2011, the city Kavrov to "plant them. Degtyareva" a meeting of the Commission on Defense and Defense of the Public Committee of president of the Russian Federation, headed by Dmitry Rogozin (like it is now, we head for "plum" secrets to the press and novelties ;)).

as part of the event was a demonstration of new products, among which was a new gun. Her photos in his blog published a renowned expert Igor Korotchenko. However, for some reason he was "ashamed" to photograph an explanatory plaque, and a formal request "Plant them. Degtyareva" did not answer. As a result of what we see on the photo, we can only guess. One thing is clear — Korochenko gun in the photo is very different from 45 mm AP from the patent "Kurganmasha" and the presentation of Airborne. In a recent interview, one way or another, the Chairman of the Board of Directors of JSC "Kurgan" Albert tanks indirectly acknowledged the existence of the new AP with fresh ammo, lamented the fact that they are not ready. It is hoped that in no time at all the problems will be solved by our gunsmiths and we finally get the weapon, allowing the national pride, "the defense industry."

 

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