PPP Machine: technical characteristics, device, photo, reviews

Throughout the history of mankind took place improvement of weapons. There were new species that served as a springboard for the next. Of stones on sticks to nuclear weapons. In the XX century. high demand was submachine guns. The Second World War demonstrated their reliability and the need for the use of the army. As many know, before the Second World War the Soviet Union used the PCA, which could not meet the time. Therefore, the task was set to create a new sub-machine gun. It combines all the good qualities of its predecessor, and it was better automatic PPP specifications of which are described below.

History

Before proceeding to the description of weapons, it is necessary to consider its creation. The history of PPP machine begins in 1942, when the predecessor of the PCA is not consistent with the new framework. However, the government believes that the new machine had to have the same characteristics as the old model. Therefore, the requirements put forward by them, were obliged to create a sub-machine gun, which would be more technologically advanced and simple in design and operation, but has the same advantages as the SCB. Designer of the Sudan, in whose honor and was named the legendary weapon, launched his project, were better.

Requirements

To the new submachine gun put forward suggestions that the machine is fully consistent with the PPP. The requirements can be summarized as follows:

• A new weapon must be cheaper than the PCA. At the same time possess the best characteristics and ease in production.
• He should have been easier. Dimensional PCA was inconvenient for reconnaissance, airborne, tank and signalers who were unable for various reasons to use it. Interestingly, the PCA was lighter German counterpart MP-40 for 400 g, but even this was not an argument.
• The store was supposed to be a simple boxed. A small size. Rate of fire, as it may seem, it is better slow. This increases the accuracy of fire. All this would make a new submachine gun much more comfortable than the PCA.

Performance

How well was the winning machine guns PPS? CAMD (Central Archive of the Ministry of Defense) has information that proves that the new weapons were the most stringent requirements. DN Bolitin gives the following figures. Thus, the weight of the new sub-machine gun had to be from 2, 5 to 3 kg. Rate of fire, which could be a model, limited to an interval of 450-500 rounds per minute. It was a value that increase the accuracy of shots. In addition to all the above, there are also strict requirements for technology. The most important thing - the maximum simplification of the production, which was carried out at the expense of automatic data processing and simplify the design as a whole. The new sub-machine gun was made of 23 mm steel which is processed mechanically, that would increase the speed.

Also, the restrictions apply and the equipment itself: only allowed to use forging equipment, limited power. Do not use complex dies, which could slow down production. A sample was given to one only 3-3, 5 hours of operation of the machine. All this was aimed directly at maximizing the number of sub-machine gun for a limited time required in war.

Start of production of

New automatic PPP passed comparative tests back in July 1942. Already in 1943 it began mass production. It was necessary to test and finalize as soon as possible, because the army needed a new sub-machine gun to replace the old PCA, which is much inferior to similar models of the enemy. The first sample, from which it began mass production, was PPS-42. It introduced in the part of the Leningrad Front, where the machine perfectly and proved itself and liked soldiers. However, it was necessary to make some changes in the design so that PPS-43 was created in 1943, which had the caliber 7, 62 mm. Enhanced PPS submachine gun was even more functional and revealing. Thus, the new machine has become the leading among all the models of this type of small arms.

PPS-42

A model that did not meet all the requirements and had flaws, needs to be corrected. The serial production was launched a new machine PPP. The device has a better performance. Therefore, PPS-42 is difficult to find, they produced little. In private collections and museums are found they are quite rare. But what is the difference between models? We replaced the device connection point with the shoulder abutment rods located below the upper abutment shoulder is much longer than the lower. This is one of the main external differences, it can be seen any, even unfamiliar with the peculiarities of the time machine. However, the photographs part that is a feature most often hidden shoulder shooter, so it is not so well known.

Also, PPP-42 and 43 have one more interesting difference: when the stock is folded shoulder rest in the earlier model lies ahead pads sight, whereas in the other - it covers. How can this be explained? The PPP-43 reduced length of the barrel and the stock, and therefore the overall length was much smaller (907 to 820 mm). It is also possible to greatly reduce the weight and model. In addition, there are some technological changes that increased the fighting qualities of the PPS-43. However, with the naked eye, they do not see.

Savings

During the fighting, the country falls into crisis. Not enough money for the production of expensive models. Therefore, the new automatic PPP had a much more cost-effective design, which use less metal elements than in the PCA. This has reduced the cost to the weapon as a whole. In addition, the percentage of waste in the production of these two submachine guns also differs greatly in favor of PPS (48%). At PCA this same figure was 60-70%. In the production process of the new machine is widely used as a stamping and welding, and the PPS-43 was made of metal is almost completely, except only covers the handle, which were made of wood, plastic, and then applied.

Description

PPP, like most submachine guns, shot produced by the energy of the free return valve. This principle was also at the PCA, and other models of this type of weapon. As already mentioned, the government has set a target to increase the accuracy. At that time it was only possible with decreasing velocity, which was used on the PPP is perhaps the easiest way and at the same time the most effective. There were two outputs (if we take the weapon with the principle of free valve) either to increase the weight of the gate, or the use of additional components. However, the device was already extremely massive, and the second embodiment greatly complicates the design.

Differences

The MP-40, the German equivalent of the PCA, uses a system of telescopic tubes, which reduces the rate of fire. However, the structure is much more complex. The PCA-firing rate reaches 41 to 1100 shots per minute, which greatly increases scatter. Therefore, by the way, the model could not be used in the army. Shutter mass was about 0, 6 kg in PPP. Automatic MR-40 had the same total of 600 shots per minute, and the design was not fire interpreter who had PCA-41. Therefore, there was no opportunity to make a simple design this model.

Needed a more technological way out with a reduction rate of fire. The PPP-43 to increase the length of the shutter speed, which was 142 mm, and PCA - 83. It is possible to reduce the rate of fire up to 700 rounds per minute. It should be noted that a professional shooter even able to produce single shots. This is achieved by briefly pressing the trigger, which, incidentally, is also possible and the German MP-40. Comments about PPP machine in the army were extremely good.

Design features

Many parts, as well as their purpose, PPP-43 and PCA-41 are quite similar, which is explained by installing leave combat performance. It consists of a receiver automatic Sudaeva PPP. The apparatus includes a barrel, bolt mechanism and a return. Also, the shutter box is used in construction, which contains the trigger and fuse. These two parts are connected by hinges.

To the rear of the receiver joins the butt, which can be folded. A shutter in front of a store located neck. Steel box is shaped like the letter "P". It is made from a single sheet of steel. Bottom is open along its entire length. As its front portion forms the barrel casing, which is meant to protect the hand from burns. Thus, PPP-43 greater security than its predecessor. A special device virtually eliminates human exposure device such as automatic PPS (picture can be seen below).

Shot

At the rear of the receiver is moved along the guide bolt, which is exposed to back-action spring. It is fitted on the shaft and is offset to the left side of the slot. He, in turn, goes to the cup shutter, where it is placed bottom of a sleeve. The guide rod acts as a reflector, the cartridge after the shot bounces off him and thrown out of the window, which is located on top of the receiver.

shutter mechanism

An interesting design is PPS (automatic). the shutter mechanism, as well as most of the parts, is extremely simple. It consists of only a trigger and a lever, which connect the axis. With the latch trigger box merged mechanism. They also adjacent fuse. The latch locks the two boxes in the closed position. The safety device created in the form of a plate which is located on the right wall of the shutter box (with its inner side). This situation allows you to simultaneously lock and trigger lock and the connecting shaft, and lock the gate. Last recorded in the position in which he was at the time of submachine gun safety. Here there are two positions: front and rear. The first end of the fuse is fixed shutter plate which abuts the back side of the handle. In the rearward position the bolt handle fixed middle part. Thus, the fuse - a device that is controlled plate. The very same machine gets it after arm movement up and down.

store latch, which is in front of the trigger guard, covered by a bracket welded to the neck. She does not give chance prozhat latch at the same time is designed for convenience. PPS-43 submachine gun is very functional, it is often performed often multiple roles, it provides simplicity of design, and, therefore, accelerates the production. PPP (automatic) with their own hands to create is unlikely to succeed - for that special conditions and equipment needed.

Specifications

machine shop includes 35 rounds of ammunition, as well as at the PCA. However, automatic Sudaeva PPS has a different design of the device. So, he has no zigov (ribs) and some other parts which are in the PCA product. This, incidentally, greatly reduces the weight of the whole machine and makes it more manufacturable. Weight without magazine (260 g without equipment) is about 3 kg. Total weight PPS with cartridges of 3, 62 kg. Barrel Length -. 0, 25 m Weight of the shutter is approximately 0, 5 kg. Each sample comes bundled with 6 stores, which are transferred in bags. Their weight with PPP machine is 6, 82 kg. This is a good indicator.

This victory weapons - machine PPS-43 - is legendary. PPSH- and PPP-machines are a great weapon. They are credited with a great contribution in the liberation of Leningrad. However, until the end of World War II PCA produced in larger quantities than the PPP. Historians and experts called the submachine gun in the best among all the weapons of the type of those times. PPS-43 includes all the technical innovations of the time and yet remains easy to use and manufacture.