RU2262063C2 - Spin-stabilized shell for smoothbore weapon - Google Patents

Abstract

FIELD: ammunition for smoothbore weapon.

SUBSTANCE: the shell has the head, middle and stabilizing parts. The stabilizing part is made as a set of monolith-interconnected cylinders, the radius of each subsequent cylinder, beginning from the middle part of the shell, is less than the preceding one by 1/8 of the radius of the middle part of the shell.

EFFECT: enhanced stability of the shell in its flight.

7 cl, 5 dwg

Description

The prior art: stabilized projectile - the main element of an artillery shot, designed to hit various targets and perform other tasks / lighting, smoke, training, etc. /. Smooth-bore weapons are used for firing a stabilized projectile. For stability in flight, a stabilized projectile uses airflow. The stabilized projectile is ordinary and special. The stabilized projectile is thrown at the expense of energy: 1) the powder charge of the cartridge, 2) other types of energy, etc.

In the 19th century, smooth-bore muzzle-loading guns and rifles were replaced by rifled, loaded from the breech of the gun and rifle guns. In artillery, shells were used instead of cores, and for stability in flight, rotational movement was imparted using rifling in the barrel. A stabilized projectile is thrown, as a rule, due to the energy of the powder charge of the cartridge.

The essence of the invention: a stabilized projectile is identical to the designation of a projectile rifled weapons. The body of the stabilized projectile is monolithic in the form of a shell containing components of a certain type of projectile and consists of a head part, a middle part, a stabilizing part. The head part is made in the form of a cone, and the middle part is in the form of a cylinder. The stabilizing part of the projectile consists of 8 parts - 7 cylinders and 1 cone, or 3 or more cylinders. A bevel from 0 to 1 ° is made on the surface of each cylinder. The stabilizing part is equipped with four plates parallel to the longitudinal axis of the projectile, not extending beyond the circle with a diameter of the middle part of the projectile. The plates may have a slightly wedge-shaped shape. The cylinders in the connections between each other form pressure rings with a width of 1/8 of the radius of the middle part, on which the hot gases are pressed when fired. The approximate dimensions of the parts of the model of the stabilizing projectile: 1) the length of the head part is 30 mm, 2) the length of the middle part is 30 mm, 3) the length of the stabilizing part is from 60 mm to 72 mm, 4) the length of each cylinder is 9 mm, 5) width pressure ring - 2.5 mm; 6) diameter of the middle part - 40 mm. A numerical change in any approximate size entails a proportional numerical change in all other sizes.

Flight principle: For stability in flight, a stabilized projectile uses airflow around it, preventing it from tipping over, i.e. creating stabilization from the moment of the shot / throwing / to the end of the flight. In this case, partial use of the turbulence takes place. By adjusting the dimensions of the bevels of the cylinders, it is possible to increase the length of the head and middle parts with their constant diameter. Tests: On the model of a stabilized projectile with a diameter of the middle part of 17 mm on the body between the center of gravity and the stabilizing part, a rotating fulcrum was installed. A stream of air from a vacuum cleaner was directed at the mock shell. Under the influence of the air stream, as according to the law of the weathervane, the projectile abruptly turned its nose to the place of exit of the air stream and was always in this position until the air supply stopped. Conclusion: The stabilizing projectile can be used in various branches of armaments and equipment. The invention of a stabilizing projectile can be adopted by the Armed Forces of the Russian Federation and Ukraine.

Figure 1 shows the appearance of the projectile and its main parts.

Figure 2 shows the head of the projectile.

Figure 3 shows the middle part of the projectile.

Figure 4 shows the stabilizer part of the projectile.

Figure 5 shows a diagram of the structure of the projectile and ways to increase its stabilization.

1 - top, 2 - pressure ring, 3 - cylindrical surface, 4 - cone.

Claims (7)

1. A stabilized projectile for smooth-bore weapons, containing the head, middle and stabilizing parts, characterized in that the stabilizing part is made in the form of a set of monolithically connected cylinders, and the radius of each subsequent cylinder, starting from the middle part of the projectile, is 1/8 smaller the radius of the middle part of the shell. 2. The projectile according to claim 1, characterized in that its head part is made in the form of a cone, and the middle part is in the form of a cylinder. 3. The projectile according to claim 1, characterized in that the cylinders in the joints between each other form pressure rings with a width of 1/8 of the radius of the middle part for exposure to hot gases during firing. 4. The projectile according to claim 1, characterized in that the ratio of the lengths of the middle, head and stabilizing parts to the diameter of the middle part is 0.75, 0.75, 1.5-1.8, respectively. 5. The projectile according to claim 1, characterized in that the stabilizing part of the projectile consists of 8 parts: 7 cylinders and 1 cone, or 3 or more cylinders. 6. The projectile according to claim 1, characterized in that on the surface of each cylinder a bevel is made from 0 to 1 °. 7. The projectile according to claim 4 or 6, characterized in that the stabilizing part is provided with four plates parallel to the longitudinal axis of the projectile, not extending beyond the circle with the diameter of the middle part of the projectile.

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