Difference between revisions of "B-20M (20 mm)"
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== Description == | == Description == | ||
− | '' | + | [[File:411px-Б-20.jpg|thumb|B-20]] |
+ | ''B-20 is a Soviet aviation small-caliber automatic cannon of 20 mm caliber. Created by weapons designer M.E. Berezin during the WW2 by remaking his 12.7 mm UB machine gun chambered for the 20 mm ShVAK cannon for a competition in which Vladimirov’s V-20 and Shpitalny’s Sh-20 designs.'' | ||
+ | === ''Available ammunition'' === | ||
=== Vehicles equipped with this weapon === | === Vehicles equipped with this weapon === | ||
<!-- ''List out vehicles that are equipped with the weapon.'' --> | <!-- ''List out vehicles that are equipped with the weapon.'' --> | ||
Line 17: | Line 19: | ||
== General info == | == General info == | ||
− | '' | + | ''The gun has 6 ammunition options. Use them depending on the situation and needs on the battlefield'' |
=== Available ammunition === | === Available ammunition === | ||
Line 74: | Line 76: | ||
== Usage in battles == | == Usage in battles == | ||
− | '' | + | ''First of all, this gun is designed for combat with enemy aircraft. Therefore, your main goal is to shoot down enemy planes, which the guns successfully cope with. But you can also destroy open or lightly armored vehicles'' |
=== Pros and cons === | === Pros and cons === | ||
− | '' | + | '''Pros:''' |
+ | |||
+ | * Decent rate of fire | ||
− | |||
* | * | ||
'''Cons:''' | '''Cons:''' | ||
+ | |||
+ | * AP-I ammunition can pen only 28mm of armor on 10m. Therefore, the aircraft is useless at defeating armour thicker than 20 mm | ||
+ | * Usually the gun has about 115-120 shots, which is often not enough. | ||
+ | |||
* | * | ||
== History == | == History == | ||
− | '' | + | ''The development of the weapon began back in 1941, with the GKO decree No. 106 "On the testing of the 20 mm Berezin aircraft cannon" issued on July 11 of that year. It was planned to conduct factory tests of two cannons by July 16, prepare three cannons for field tests by July 18, and by July 25, mount two wing cannons on the Il-2 and one motor cannon on the LaGG-3 for flight testing.'' |
+ | |||
+ | ''In the memoirs of the Deputy People's Commissar of Armaments, V. N. Novikov, it is claimed that the cannon only reached initial testing at the end of 1943. According to him, the main difficulties arose from modifying the bolt and the receiver. The problems were likely caused by the fact that the ShVAK cannon cartridge, unlike the UB machine gun cartridge, had a rim. Thanks to close collaboration with the factory designers, the cannon turned out not only to be very light (half the weight of the ShVAK) but also significantly more technologically advanced.'' | ||
== Media == | == Media == | ||
− | + | {{Youtube-gallery|https://www.youtube.com/watch?v=7UHpIcQQonY&t=76s=Yak 3P is one of the aircraft armed with this gun|https://youtu.be/nrC6G4kSLBg?si=7OcYdvSjHZre7HUz=Yak-9P is one of the planes armed with this gun}} | |
== See also == | == See also == | ||
Line 97: | Line 106: | ||
;Related development | ;Related development | ||
+ | |||
* [[B-20 (20 mm) (Family)]] | * [[B-20 (20 mm) (Family)]] | ||
== External links == | == External links == | ||
''Paste links to sources and external resources, such as:'' | ''Paste links to sources and external resources, such as:'' | ||
+ | |||
* ''topic on the official game forum;'' | * ''topic on the official game forum;'' | ||
* ''other literature.'' | * ''other literature.'' |
Latest revision as of 09:17, 21 August 2024
This page is about the Soviet cannon B-20M (20 mm). For other versions, see B-20 (20 mm) (Family). |
Contents
Description
B-20 is a Soviet aviation small-caliber automatic cannon of 20 mm caliber. Created by weapons designer M.E. Berezin during the WW2 by remaking his 12.7 mm UB machine gun chambered for the 20 mm ShVAK cannon for a competition in which Vladimirov’s V-20 and Shpitalny’s Sh-20 designs.
Available ammunition
Vehicles equipped with this weapon
General info
The gun has 6 ammunition options. Use them depending on the situation and needs on the battlefield
Available ammunition
- Default: FI-T · AP-I
- Universal: FI-T · HEF · AP-I · FI-T
- Ground targets: HEF · FI-T · AP-I
- Tracers: FI-T · FI-T · FI-T
- Armoured targets: AP-I · FI-T · AP-I · AP-I
- Stealth: AP-I · HEF · HEF · FI
Penetration statistics | |||||||||
---|---|---|---|---|---|---|---|---|---|
Ammunition | Type of warhead |
Penetration @ 0° Angle of Attack (mm) | |||||||
10 m | 100 m | 500 m | 1,000 m | 1,500 m | 2,000 m | ||||
FI-T | FI-T | 2 | 2 | 2 | 2 | 2 | 2 | ||
AP-I | AP-I | 28 | 24 | 14 | 7 | 4 | 2 | ||
HEF | HEF | 2 | 2 | 2 | 2 | 2 | 2 | ||
FI | FI | 2 | 2 | 2 | 2 | 2 | 2 |
Shell details | |||||||||
---|---|---|---|---|---|---|---|---|---|
Ammunition | Type of warhead |
Velocity (m/s) |
Projectile mass (kg) |
Fuse delay (m) |
Fuse sensitivity (mm) |
Explosive mass (TNT equivalent) (g) |
Ricochet | ||
0% | 50% | 100% | |||||||
FI-T | FI-T | 800 | 0.1 | 0.04 | 0.1 | 6.36 | 47° | 56° | 65° |
AP-I | AP-I | 800 | 0.1 | N/A | N/A | N/A | 47° | 56° | 65° |
HEF | HEF | 800 | 0.1 | 0.04 | 0.1 | 5.8 | 79° | 80° | 81° |
FI | FI | 800 | 0.1 | 0.04 | 0.1 | 8.62 | 47° | 56° | 65° |
Comparison with analogues
Give a comparative description of cannons/machine guns that have firepower equal to this weapon.
Usage in battles
First of all, this gun is designed for combat with enemy aircraft. Therefore, your main goal is to shoot down enemy planes, which the guns successfully cope with. But you can also destroy open or lightly armored vehicles
Pros and cons
Pros:
- Decent rate of fire
Cons:
- AP-I ammunition can pen only 28mm of armor on 10m. Therefore, the aircraft is useless at defeating armour thicker than 20 mm
- Usually the gun has about 115-120 shots, which is often not enough.
History
The development of the weapon began back in 1941, with the GKO decree No. 106 "On the testing of the 20 mm Berezin aircraft cannon" issued on July 11 of that year. It was planned to conduct factory tests of two cannons by July 16, prepare three cannons for field tests by July 18, and by July 25, mount two wing cannons on the Il-2 and one motor cannon on the LaGG-3 for flight testing.
In the memoirs of the Deputy People's Commissar of Armaments, V. N. Novikov, it is claimed that the cannon only reached initial testing at the end of 1943. According to him, the main difficulties arose from modifying the bolt and the receiver. The problems were likely caused by the fact that the ShVAK cannon cartridge, unlike the UB machine gun cartridge, had a rim. Thanks to close collaboration with the factory designers, the cannon turned out not only to be very light (half the weight of the ShVAK) but also significantly more technologically advanced.
Media
See also
- Related development
External links
Paste links to sources and external resources, such as:
- topic on the official game forum;
- other literature.
USSR aircraft cannons | |
---|---|
20 mm | B-20E · B-20M · B-20S · ShVAK |
23 mm | GSh-23L · NR-23 · NS-23 · NS-23K · PTB-23 · VYa-23 |
30 mm | 2A42 · GSh-6-30 · GSh-30-1 · GSh-30-2 · GSh-30-2K · NR-30 |
37 mm | N-37 · N-37D · NS-37 · SH-37 |
45 mm | NS-45 |
Foreign: | |
20 mm | Hispano Mk.II (Britain) · MG 151 (Germany) |
37 mm | M4 (USA) · M10 (USA) |
Italy aircraft cannons | |
---|---|
20 mm | TM197B |
30 mm | Hispano HS 825 |
37 mm | Breda Model 39 37/54 |
102 mm | 102/35 mod 14 |
Foreign: | |
20 mm | B-20E (USSR) · B-20M (USSR) · B-20S (USSR) · Hispano 404 (France) · Hispano Mk.II (Britain) · Hispano Mk.V (Britain) · M24A1 (USA) · M61A1 (USA) · MG 151 (Germany) · MG FF (Germany) · MG FF/M (Germany) · ShVAK (USSR) |
23 mm | GSh-23L (USSR) · NR-23 (USSR) · NS-23 (USSR) |
27 mm | Akan m/85 (Sweden) · Mauser BK27 (Germany) |
30 mm | DEFA 552 (France) · GSh-30-1 (USSR) · GSh-30-2K (USSR) · MK 103 (Germany) · MK 108 (Germany) · NR-30 (USSR) |
37 mm | BK 3.7 (Germany) · N-37 (USSR) · N-37D (USSR) |