????Become an IT specialist from scratch at Skillfactory: https://go.skillfactory.ru/LcsAOw Refund for the course if you did not find a job after training + 45% discount with promo code RAZGADKI45 until 10/31/2024 Advertising. OOO "SKILFEKTORY" INN 9702009530 Erid: 2VtzqwA3oxn *** Among the exhibits of the Museum of Artillery and Engineering Troops of St. Petersburg, in my opinion, there are 2 groups of mysterious artifacts. The first group is the so-called steam machine gun, in my opinion this is a conversion of some old equipment into a machine gun, a live video review of this unit is on Busti, as well as a group of kind of guns that officially fired disks. They are also called disc throwers. These so-called guns are devices with a rectangular, oval and complex profile of the cross-section of the barrel. They write the following about them: I liked the article on the topwar website. The article is, as usual, in the style of "putting on bast shoes". Firing cannonballs hit the ceiling of its capabilities, and inventors tried exotic ways to increase the firing range. Professor Maievsky looked for ways to increase the penetrating power and firing range of artillery guns. For example, it could be about disk-shaped projectiles fired from guns with a special barrel bore. In his special study on disc-shaped projectiles, published in 1857, the Italian artilleryman Saint-Robert proposed several ways to make disc projectiles rotate: thus, a disc projectile with a lead belt around the circumference could cut into a cutout in the upper part of the barrel bore, equipped with transverse teeth (like a toothed rack), and when moving along such a channel, and meeting greater resistance from above than from below, it would obtain the required rotation. Obviously wanting to test all this in practice, Professor Maievsky in 1868 proposed a gun with a barrel bore curved upward, in which the disc projectile would acquire rotation due to centrifugal force. The shooting conducted in 1871-1873 confirmed that the calculations were correct: a disk projectile weighing 3.5 kg, at a speed of 480 m / s, was able to fly 2500 m, while a regular cannonball of similar weight only 500 m. There is an obvious discrepancy here, it is described that the gun was bent upwards, but in fact it is bent downwards, we see this by the front sight. Of course, the gun can be turned over and it has two front sights. We will start the review with the most interesting gun, which has a toothed rack in the barrel channel. Let me give my arguments that this product was not developed as a cannon. First and foremost, the low weight and volume of the disk projectile. High labor intensity of the projectile manufacture, the internal volume for filling with explosive is very small. That is, the high-explosive and / or grapeshot effect will be minimal. The second is the toothed rack and lead belt. We see teeth 10 mm high, this size is usually made for engagement with the gear. If this scheme theoretically works, then to spin the disk, the teeth can be made several times smaller, or even 10 times smaller. The third is the labor intensity of making the gun, the gun is disassemblable and consists of many elements that must be made very precisely. The fourth is an unsuitable material - a soft copper alloy, which is why it had to be protected with steel plates. The fifth is that it was possible to significantly simplify the design of the gun and the projectile by making the breech in such a way that the powder gases pressed on the upper or lower part of the disk, thereby ensuring its rotation. This product could not fire for two reasons: Firstly: The Disc-Projectile with a lead belt would not have time to spin on the toothed rack, and it would simply get stuck in the barrel channel with *** Regarding cooperation: [email protected] *** My website: razgadki-istorii.ru Boost: https://boosty.to/razgadki Telegram: https://t.me/razgadki