Difference between revisions of "5.25 inch/50 QF Mark I (133 mm)"

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== Description ==
 
== Description ==
''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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<!-- ''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 133 mm 5.25-inch/50 QF Mark I is a naval cannon used by Royal Navy vessels. Lying somewhere between destroyer and light cruiser calibre, this cannon is only equipped in-game to the [[HMS Dido]], the British rank III light cruiser. During its real-life service, it was also used as a dual-purpose gun, equipped to the King George V-class battleships, as well as HMS Vanguard, the Royal Navy's last battleship.
  
 
=== 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.'' -->
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* {{Specs-Link|uk_cruiser_dido}}
 
* {{Specs-Link|uk_cruiser_dido}}
  
 
== General info ==
 
== General info ==
''Tell us about the tactical and technical characteristics of the cannon or machine gun.''
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<!-- ''Tell us about the tactical and technical characteristics of the cannon or machine gun.'' -->
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The 5.25-inch guns are 133 mm in diameter, placing them close to both the 5-inch (127 mm) guns used by the American, Japanese, and German destroyers, as well as the 130 mm guns used by the Russian destroyers. As a result, these guns are some of the deadliest guns in the game against destroyers, thanks to their hefty size and rapid rate of fire. However, these are still small guns for a light cruiser, lacking in firepower to the many 6-inch (152 mm) guns found on other light cruisers. While the rate of fire of these guns is also impressive (especially with a good crew), it isn't enough to truly outgun any light cruisers firing back. As a result, these guns are best used as anti-destroyer guns, using their good damage and adequate rate of fire to punish enemy destroyers.
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=== Available ammunition ===
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<!-- ''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).'' -->
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Like many of the British destroyer guns, the 5.25-inch cannons lack any true armour-piercing shells. Instead, players get the option of three shell types:
  
=== Available shells ===
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* '''HE''' - these shells are the stock shells for the 5.25-inch gun. While they can deal huge damage to destroyers and coastal craft, they lack the penetration or the sheer damage to damage any armoured cruisers. However, there are still some light cruisers that can take big damage from these shells, such as the British [[HMS Enterprise]], the Japanese [[IJN Kuma]], and the American [[USS Raleigh (CL-7)|USS Raleigh]] and [[USS Trenton (CL-11)|USS Trenton]]. These shells can also do substantial damage to auxiliary and AA guns, smoke stacks, and lightly armoured gun turrets.
''Describe the shells that are available for the cannon 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).''
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* '''SAPBC''' - these semi-armour piercing shells are the best shells for use against larger light and heavy cruisers, with enough close-range penetration to cut through belt armour on larger ships. At range, these can also be devastating to light cruisers and destroyers, with the ability to cut through hull armour and hit ammo racks and elevators, as well as ship engines and rudders.
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* '''HE-TF''' - the time-fused shells, like others of the type, are the most effective against AA, and can also be used to dig into destroyers and damage more internal components if at close range.
  
 
=== Comparison with analogues ===
 
=== Comparison with analogues ===
''Give a comparative description of cannons/machine guns, that have firepower equal to these type of weapons.''
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<!-- ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.'' -->
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* [[130 mm/50 pattern 1913 (130 mm)|130 mm/50 pattern 1913]] - this Russian cruiser gun is a similar calibre to the 5.25-inch. While it lacks the British gun's calibre, it makes up for it with better armour penetration and a better shell velocity.
 +
* [[130 mm/58 SM-2-1 (130 mm)|130 mm/58 SM-2-1]] - another Russian 130 mm gun, this outclasses the 5.25-inch gun entirely, with superior rate of fire, penetration, shell velocity and ammunition.
 +
* [[5 inch/38 Mk.12 (127 mm)|5 inch/38 Mk. 12]] - this American 127 mm gun, found on the USS Atlanta, lacks the raw firepower of the British gun, and has a lower shell velocity, but its insane rate of fire (22 rounds/per min in first stage) means it can easily beat the British gun in a duel.
  
 
== Usage in battles ==
 
== Usage in battles ==
''Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against the main opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.''
+
<!-- ''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.'' -->
 +
The 5.25-inch gun, like the guns on the USS Atlanta, sit contrary to the role of its only user, the HMS Dido. While the guns possess good damage and rate of fire for their calibre, they still shoot slower than destroyer guns, and hit softer than cruiser guns, leaving them in an awkward position. Still, these guns can fill any role effectively.
 +
 
 +
Against other ships, these guns can still be effective. Destroyers should be terrified of these guns, thanks to their good shell velocity and rate of fire, and their fantastic damage and accuracy. The Dido can easily pick apart destroyers, and these guns can effectively outgun many destroyer guns at range. However, these guns lack that same effectiveness against cruisers. The SAPBC shells can damage cruisers, but they lack explosive damage, and the HE shells will utterly fail against any but the lightest of cruisers.
 +
 
 +
These guns can also be effective dual-purpose guns thanks to the HE-TF shells and good gun handling. With larger aircraft, feel free to switch to the timed shells and let rip with your good accuracy and rate of fire.
  
 
=== Pros and cons ===
 
=== Pros and cons ===
''Summarize and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.''
+
<!-- ''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.'' -->
  
 
'''Pros:'''
 
'''Pros:'''
*
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 +
* Easily capable of killing destroyers thanks to the calibre
 +
* Adequate reload that beats many cruisers at the same tier
 +
* Very accurate and has good shell velocity
  
 
'''Cons:'''
 
'''Cons:'''
*
+
 
 +
* Lacks the damage to threaten larger ships
 +
* Lack of  armour-piercing shells makes them weak against heavy cruisers
 +
* Rate of fire is slow compared to similar-sized guns
  
 
== History ==
 
== History ==
''Examine the history of the creation and combat usage of this weapon. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle 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></nowiki></code>, as well as adding them at the end of the article.''
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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 QF 5.25-inch naval guns were the Royal Navy's heaviest dual-purpose cannons in use during the Second World War. Fitted primarily to the King George V-class battleships, these guns proved to be effective against both other shipping and aircraft. The Royal Navy also fitted these guns to its Dido-class of light cruisers, which used them to some success while serving as convoy escorts. The guns also had the distinction of being fitted to the Royal Navy's last ever battleship, HMS Vanguard.
 +
 
 +
The 5.25-inch guns were some of the Royal Navy's first large-scale guns to be designed from the outset as dual-purpose guns (to be used against both ships and aircraft, depending on the situation). The guns were particularly noted for their ballistic performance, being able to fire more accurately and farther than its closest rivals in the French and Italian navies. This made them effective also for land bombardment, and some guns were later acquired by the British Army for coastal defence, in part due to their potent long-range firepower.
 +
 
 +
The guns were some of the last of these types to be constructed by the Royal Navy. Post-war, much of naval armament went in the way of smaller, faster cannons, as well as a larger emphasis on rockets, and later missiles.
  
 
== Media ==
 
== Media ==
''An excellent addition to the article would be a video guide, as well as screenshots from the game and photos.''
+
''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
  
 
== See also ==
 
== See also ==
Line 41: Line 68:
 
''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 10:39, 3 March 2021

Description

The 133 mm 5.25-inch/50 QF Mark I is a naval cannon used by Royal Navy vessels. Lying somewhere between destroyer and light cruiser calibre, this cannon is only equipped in-game to the HMS Dido, the British rank III light cruiser. During its real-life service, it was also used as a dual-purpose gun, equipped to the King George V-class battleships, as well as HMS Vanguard, the Royal Navy's last battleship.

Vehicles equipped with this weapon

General info

The 5.25-inch guns are 133 mm in diameter, placing them close to both the 5-inch (127 mm) guns used by the American, Japanese, and German destroyers, as well as the 130 mm guns used by the Russian destroyers. As a result, these guns are some of the deadliest guns in the game against destroyers, thanks to their hefty size and rapid rate of fire. However, these are still small guns for a light cruiser, lacking in firepower to the many 6-inch (152 mm) guns found on other light cruisers. While the rate of fire of these guns is also impressive (especially with a good crew), it isn't enough to truly outgun any light cruisers firing back. As a result, these guns are best used as anti-destroyer guns, using their good damage and adequate rate of fire to punish enemy destroyers.

Available ammunition

Like many of the British destroyer guns, the 5.25-inch cannons lack any true armour-piercing shells. Instead, players get the option of three shell types:

  • HE - these shells are the stock shells for the 5.25-inch gun. While they can deal huge damage to destroyers and coastal craft, they lack the penetration or the sheer damage to damage any armoured cruisers. However, there are still some light cruisers that can take big damage from these shells, such as the British HMS Enterprise, the Japanese IJN Kuma, and the American USS Raleigh and USS Trenton. These shells can also do substantial damage to auxiliary and AA guns, smoke stacks, and lightly armoured gun turrets.
  • SAPBC - these semi-armour piercing shells are the best shells for use against larger light and heavy cruisers, with enough close-range penetration to cut through belt armour on larger ships. At range, these can also be devastating to light cruisers and destroyers, with the ability to cut through hull armour and hit ammo racks and elevators, as well as ship engines and rudders.
  • HE-TF - the time-fused shells, like others of the type, are the most effective against AA, and can also be used to dig into destroyers and damage more internal components if at close range.

Comparison with analogues

  • 130 mm/50 pattern 1913 - this Russian cruiser gun is a similar calibre to the 5.25-inch. While it lacks the British gun's calibre, it makes up for it with better armour penetration and a better shell velocity.
  • 130 mm/58 SM-2-1 - another Russian 130 mm gun, this outclasses the 5.25-inch gun entirely, with superior rate of fire, penetration, shell velocity and ammunition.
  • 5 inch/38 Mk. 12 - this American 127 mm gun, found on the USS Atlanta, lacks the raw firepower of the British gun, and has a lower shell velocity, but its insane rate of fire (22 rounds/per min in first stage) means it can easily beat the British gun in a duel.

Usage in battles

The 5.25-inch gun, like the guns on the USS Atlanta, sit contrary to the role of its only user, the HMS Dido. While the guns possess good damage and rate of fire for their calibre, they still shoot slower than destroyer guns, and hit softer than cruiser guns, leaving them in an awkward position. Still, these guns can fill any role effectively.

Against other ships, these guns can still be effective. Destroyers should be terrified of these guns, thanks to their good shell velocity and rate of fire, and their fantastic damage and accuracy. The Dido can easily pick apart destroyers, and these guns can effectively outgun many destroyer guns at range. However, these guns lack that same effectiveness against cruisers. The SAPBC shells can damage cruisers, but they lack explosive damage, and the HE shells will utterly fail against any but the lightest of cruisers.

These guns can also be effective dual-purpose guns thanks to the HE-TF shells and good gun handling. With larger aircraft, feel free to switch to the timed shells and let rip with your good accuracy and rate of fire.

Pros and cons

Pros:

  • Easily capable of killing destroyers thanks to the calibre
  • Adequate reload that beats many cruisers at the same tier
  • Very accurate and has good shell velocity

Cons:

  • Lacks the damage to threaten larger ships
  • Lack of armour-piercing shells makes them weak against heavy cruisers
  • Rate of fire is slow compared to similar-sized guns

History

The QF 5.25-inch naval guns were the Royal Navy's heaviest dual-purpose cannons in use during the Second World War. Fitted primarily to the King George V-class battleships, these guns proved to be effective against both other shipping and aircraft. The Royal Navy also fitted these guns to its Dido-class of light cruisers, which used them to some success while serving as convoy escorts. The guns also had the distinction of being fitted to the Royal Navy's last ever battleship, HMS Vanguard.

The 5.25-inch guns were some of the Royal Navy's first large-scale guns to be designed from the outset as dual-purpose guns (to be used against both ships and aircraft, depending on the situation). The guns were particularly noted for their ballistic performance, being able to fire more accurately and farther than its closest rivals in the French and Italian navies. This made them effective also for land bombardment, and some guns were later acquired by the British Army for coastal defence, in part due to their potent long-range firepower.

The guns were some of the last of these types to be constructed by the Royal Navy. Post-war, much of naval armament went in the way of smaller, faster cannons, as well as a larger emphasis on rockets, and later missiles.

Media

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

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

  • reference to the article about the variant of the cannon/machine gun;
  • references to approximate analogues by other nations and research trees.

External links

Paste links to sources and external resources, such as:

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


Britain naval cannons
20 mm  20 mm/70 Oerlikon Mk.II · 20 mm/70 Oerlikon Mark V · 20 mm/70 Oerlikon Mark 24
40 mm  2pdr QF Mk.IIc · 2pdr QF Mk.VIII · 2pdr Rolls Royce · QF Mark V · QF Mark VII · QF STAAG Mark II
47 mm  3 pdr QF Hotchkiss
57 mm  6pdr 7cwt QF Mk IIA
76 mm  3 inch naval AA Mk.V · 3 inch/70 Mark 6 · 76 mm/45 QF 3in 20cwt HA Mark I · 76 mm/50 12pdr 18cwt QF Mark I · OQF 3in 20cwt
102 mm  4 inch/40 QF mark III · 4 in QF Mark V · 4 inch/45 Mark XVI · 4 inch/50 BL Mark VII · BL Mark IX
114 mm  4.5 inch/45 QF Mark IV · 4.5 inch/45 QF Mark V · 8cwt QF Mk I
120 mm  4.7 inch/45 Mk.XII
133 mm  5.25 inch/50 QF Mark I
152 mm  6 inch/45 BL Mark XII · 6 inch/50 BL Mark XXIII · 6 inch/50 QF Mark N5
190 mm  7.5 inch/45 BL Mk.VI
203 mm  8 inch/50 Mark VIII
305 mm  305 mm/45 Mark X · 12 inch/50 Mark XI
  Foreign:
40 mm  Bofors L/60 Mark 2 (USA)
76 mm  76 mm/62 OTO-Melara Compact (Italy)