Difference between revisions of "45 mm/68 21-KM (45 mm)"

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(History: added history and links to the original 21-K and the 20-K which is the same gun but intended for tanks.)
(Added Pr.253L)
 
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== Description ==
 
== Description ==
The 21-KM is an upgraded variant of the [[21-K (45 mm)]] with a longer barrel and thus higher muzzle velocity.
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<!-- ''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.'' -->
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The '''45 mm/68 21-KM''' is an upgraded variant of the [[45 mm/46 21-K (45 mm)|45 mm/46 21-K]] with a longer barrel and thus higher muzzle velocity.
  
 
=== Vehicles equipped with this weapon ===
 
=== Vehicles equipped with this weapon ===
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* {{Specs-Link|ussr_mbk_161_1944|short}}
 
* {{Specs-Link|ussr_mbk_161_1944|short}}
 
* {{Specs-Link|ussr_mo_4|short}}
 
* {{Specs-Link|ussr_mo_4|short}}
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* {{Specs-Link|ussr_pr253l}}
  
 
== General info ==
 
== General info ==
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== History ==
 
== History ==
The 21-KM's story begins in 1926 with a 37mm anti-gun prototype made by Rheinmetall. The Soviet Union, needing an anti-gun but lacking the know-how to make one, turned Germany and the two nations agreed in secret to have German companies develop Soviet artillery designs to bypass the Treaty of Versailles armament restrictions. The result was the 37mm anti-tank gun M1930 (1-K), the Soviet Union's first dedicated anti-tank weapon and an early proof of concept of what would become the [[PaK L/45 (37 mm)|PaK L/45]]. Shortly after the 1-K began production in the Soviet Union in March of 1932 V. Bering at Factory No. 8 created the 19-K 45mm anti-tank gun M1932 which scaled up the gun barrel to 45mm for the economical reason that the Soviets had it in stock. The 19-K would be developed into the [[45 mm/46 21-K (45 mm)|21-K]] as an anti-aircraft weapon for the Soviet Navy, but the gun would be superseded by the automatic [[70-K (37 mm)|70-K]] as the main naval anti-aircraft gun in 1942. The production of the 21-K however continued and that same year the No. 172 Plant in Motovilikha made the 45mm anti-tank gun M1942 (M-42) for the Red Army which was effectively a longer barrelled variant of the 19-K. The longer barrelled was also adopted by the Soviet Navy as the 21-KM and by this point, production completely switched to monobloc barrels from the original built-up gun barrels. Production ended in 1947 just like the 21-K itself.  
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<!-- ''Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>.'' -->
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The 21-KM's story begins in 1926 with a 37 mm anti-tank gun prototype made by Rheinmetall. The Soviet Union, needing an anti-tank gun but lacking the know-how to make one, turned to Germany and the two nations agreed in secret to have German companies develop Soviet artillery designs to bypass the armament restrictions of the Treaty of Versailles. The result was the 37 mm anti-tank gun M1930 (1-K), the Soviet Union's first dedicated anti-tank weapon and an early proof of concept of what would become the [[PaK L/45 (37 mm)|PaK L/45]]. Shortly after the 1-K began production in the Soviet Union in March of 1932, V. Bering at Factory No. 8 created the 19-K 45 mm anti-tank gun M1932 which scaled up the gun barrel to 45 mm for the economical reason that the Soviets had it in stock. The 19-K would be developed into the [[45 mm/46 21-K (45 mm)|21-K]] as an anti-aircraft weapon for the Soviet Navy, but the gun would be superseded by the automatic [[70-K (37 mm)|70-K]] as the main naval anti-aircraft gun in 1942. The production of the 21-K however continued and that same year the No. 172 Plant in Motovilikha made the 45 mm anti-tank gun M1942 (M-42) for the Red Army which was effectively a longer barrelled variant of the 19-K. The variant was also adopted by the Soviet Navy as the 21-KM and by this point, production completely switched to monobloc barrels from the original built-up gun barrels. Production ended in 1947 just like the 21-K itself.
  
 
== Media ==
 
== Media ==
''An excellent addition to the article would be a video guide, as well as screenshots from the game and photos.''
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''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
  
 
== See also ==
 
== See also ==
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<!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
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* ''reference to the article about the variant of the cannon/machine gun;''
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* ''references to approximate analogues by other nations and research trees.'' -->
  
* [[21-K (45 mm)]]: Original naval cannon
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* [[45 mm/46 21-K (45 mm)]]: Original naval cannon
* [[20-K (45 mm)]]: Tank variant
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* 45 mm [[20-K (45 mm)]]: Tank variant
  
 
== 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;''
* ''encyclopedia page on the weapon;''
 
 
* ''other literature.''
 
* ''other literature.''
  

Latest revision as of 11:15, 21 November 2024

Description

The 45 mm/68 21-KM is an upgraded variant of the 45 mm/46 21-K with a longer barrel and thus higher muzzle velocity.

Vehicles equipped with this weapon

General info

Tell us about the tactical and technical characteristics of the cannon or machine gun.

Available ammunition

Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).

Comparison with analogues

Give a comparative description of cannons/machine guns that have firepower equal to this weapon.

Usage in battles

Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.

Pros and cons

Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.

Pros:

Cons:

History

The 21-KM's story begins in 1926 with a 37 mm anti-tank gun prototype made by Rheinmetall. The Soviet Union, needing an anti-tank gun but lacking the know-how to make one, turned to Germany and the two nations agreed in secret to have German companies develop Soviet artillery designs to bypass the armament restrictions of the Treaty of Versailles. The result was the 37 mm anti-tank gun M1930 (1-K), the Soviet Union's first dedicated anti-tank weapon and an early proof of concept of what would become the PaK L/45. Shortly after the 1-K began production in the Soviet Union in March of 1932, V. Bering at Factory No. 8 created the 19-K 45 mm anti-tank gun M1932 which scaled up the gun barrel to 45 mm for the economical reason that the Soviets had it in stock. The 19-K would be developed into the 21-K as an anti-aircraft weapon for the Soviet Navy, but the gun would be superseded by the automatic 70-K as the main naval anti-aircraft gun in 1942. The production of the 21-K however continued and that same year the No. 172 Plant in Motovilikha made the 45 mm anti-tank gun M1942 (M-42) for the Red Army which was effectively a longer barrelled variant of the 19-K. The variant was also adopted by the Soviet Navy as the 21-KM and by this point, production completely switched to monobloc barrels from the original built-up gun barrels. Production ended in 1947 just like the 21-K itself.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • other literature.


USSR naval cannons
20 mm  ShVAK
25 mm  2M-3
30 mm  AK-230 · 30 mm/54 AK-630 · 30 mm/54 AK-630M · BP "Plamya"
37 mm  37 mm/67 70-K · V-11
45 mm  45 mm/46 21-K · 45 mm/68 21-KM · 45 mm/89 SM-20-ZIF · 45 mm/89 SM-21-ZIF
57 mm  AK-725
75 mm  75 mm/50 Canet patt.1892
76 mm  34-K · 39-K · 76 mm/60 AK-176M · AK-726 · D-56TS · F-34 · Lender AA gun, pattern 1914/15
85 mm  85 mm/52 92-K · 85 mm/54.6 ZIS-C-53 · 90-K
100 mm  100 mm/56 B-34 · 100 mm/70 SM-5-1 · Minizini
102 mm  Pattern 1911
120 mm  120 mm/50 pattern 1905
130 mm  130 mm/55 pattern 1913 · 130 mm/58 SM-2-1 · B-13
152 mm  152 mm/57 B-38
180 mm  180 mm/57 B-1-P · 180 mm/60 B-1-K
305 mm  12-inch/52 pattern 1907 · 305 mm/54 B-50
356 mm  14-inch/52 pattern 1913 (356 mm)
  Foreign:
40 mm  2pdr QF Mk.IIc (Britain) · Skoda (Czechoslovakia)
47 mm  3 pdr QF Hotchkiss (Britain)
76 mm  76 mm/40 Ansaldo mod.1917 (Italy)
88 mm  SK C/30 (Germany)
120 mm  120 mm/50 Mk.4 Bofors M1924 (Sweden) · 120 mm/50 O.T.O. Mod.1933 (Italy)
152 mm  152/53 mm O.T.O. Mod.1929 (Italy)
320 mm  320 mm/44 Ansaldo model 1934 (Italy)