The 457-mm 55-caliber marine gun is a project of a heavy artillery gun, which was planned for installation on one of the variants of the Project 24 battleship . It was planned to create the most powerful gun in its caliber with the heaviest projectile and the highest projectile speed, as well as with the highest range.
| 457 mm / 55 marine gun | |
|---|---|
| Production history | |
| Designed by | 1940s |
| Service History | |
| Wars and conflicts | The Second World War |
| Gun characteristics | |
| Caliber mm | 457.2 |
| Barrel length, mm / calibres | 55 klb |
| Shutter type | piston |
| Projectile weight, kg | 1580-1720 kg |
| The initial velocity of the projectile, m / s | 820-850 |
| Rate of fire rounds per minute | 2 rounds per minute |
| Gun mount specifications | |
| The total mass of the AC, kg | 4160 t |
| The mass of the rotating part, t | 3628 t |
| Trimming radius on trunks, mm | 24.2 m |
| Reservation | tower forehead 600 mm, sides and roof 250 mm |
| Calculation of installation, people | 115 people |
Content
- 1 Background
- 2 Design
- 3 Illustrations
- 4 See also
- 5 Sources
Background
The country's first project of an 18-inch gun was the 457/45 gun of the Obukhov Steel Plant . According to preliminary data, it had very high characteristics for its time - the weight of the projectile was 1586 kg at a speed of 890 m / s, that is, by muzzle energy it should have significantly exceeded all the guns that existed at that time - it also exceeded the Yamato battleship ’s designed gun in 1939, with a projectile weight of 1460 kg and an initial speed of 780 m / s, and the weaker Yamato gun had a range of up to 45 km, that is, theoretically, the firing range of a Russian 457/45 gun could reach 50 km. However, the project itself was not worked out in detail - at least, the drawings were not preserved.
Design
The first developments appeared back in the 1930s, when several variants of the battleship with 406-mm and 457-mm artillery of the main caliber were proposed, the largest of which was the version with four quad 457-mm installations (also a year later there were projects of battleships and with guns of even larger caliber - 500 and 530 mm). But only in the 1940s, when the design of the linear ships of Project 24 began, the gun was worked out in detail in the project.
In the project, the projectile weight could be from 1580 to 1720 kg, the charge weight was 620 kg, the initial velocity of the projectile varied from 820 to 850 m / s, and the range was from 49 to 52 km.
Comparison table of 457 mm guns from different countries:
| A country | the USSR | USA | USA | Japan | United Kingdom | France |
|---|---|---|---|---|---|---|
| Project Year | 1940s | 1920 | 1920 | 1939 | 1920 | 1930s |
| Gun brand | - | Mk.i | Mk.a | Type 94 | Mk.II * | There is no data |
| Barrel length, klb | 55 | 48 | 47 | 45 | 45 | There is no data |
| Projectile weight kg | 1580-1720 | 1315 | 1746.3 | 1460 | 1506 | 1400 |
| Charge weight kg | 620 | 403.7 | 403.7 | 360 | 367 | There is no data |
| Muzzle velocity, m / s | 820-850 | 823 | 732 | 780 | 762 | 875 |
| Range, km | 49-52 | About 39 | about 39 | 45 | 38 | No data, not less than 40 |
| Rate of fire, v / m | 2 | 1.5-1.75 | 1.5-1.75 | 1,5-2 | 1,5-2 | No data, not less than 1.5 |
- Different sources give different data on this tool, due to the wide variety of shells for this tool in different years - 1920, 1921 and 1922.
As can be seen from the table, the Soviet gun was the latest of the 18-inch guns, but also the most powerful. Other guns either have a heavy projectile, but a low initial velocity, or have a light projectile, but a high initial velocity.
Illustrations
See also
406-mm naval gun B-37
Sources
A. M. Vasiliev, A. B. Morin. Super links of Stalin. “Soviet Union”, “Kronstadt”, “Stalingrad”