Difference between revisions of "18 inch Mark XII (450 mm)"

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{{DISPLAYTITLE:18-inch Mark XII Torpedo}}
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<div class="ttx">
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<div class="ttx-title">18-inch Mk.XII</div>
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<div class="ttx-image">[[File:Torpedo Mark XII.jpg]]</div>
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<div class="ttx-table">
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  <div class="ttx-table-line ttx-table-head">Information</div>
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  <div class="ttx-table-line"><span class="ttx-value">Aerial / Ship-launched Torpedo</span><span class="ttx-name">Type</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">Britain [[File:Britain_flag.png]]</span><span class="ttx-name">County of Origin</span></div>
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  <div class="ttx-table-line ttx-table-head">General Characteristics</div>
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  <div class="ttx-table-line"><span class="ttx-value">45 cm</span><span class="ttx-name">Diameter</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">702 kg</span><span class="ttx-name">Mass</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">TNT</span><span class="ttx-name">Explosive Type</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">176 kg</span><span class="ttx-name">Explosive Mass</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">69 kph</span><span class="ttx-name">Max Speed</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">3.2 km</span><span class="ttx-name">Max Range</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">50 m</span><span class="ttx-name">Arming Distance</span></div>
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  <div class="ttx-table-line ttx-table-head">Arial Specific Characteristics</div>
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  <div class="ttx-table-line"><span class="ttx-value">0 - 281 kph</span><span class="ttx-name">Drop Speed Range</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">0 - 105 m</span><span class="ttx-name">Drop Altitude Range</span></div>
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  <div class="ttx-table-line ttx-table-head">Naval Specific Characteristics</div>
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  <div class="ttx-table-line"><span class="ttx-value">74 kph</span><span class="ttx-name">Max Speed (mode change)</span></div>
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  <div class="ttx-table-line"><span class="ttx-value">1.37 km</span><span class="ttx-name">Max Range (mode change)</span></div>
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</div>
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</div>
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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 '''18-inch Mark XII''' or simply '''Mark XII'' is a British torpedo. Although designed for use as a aerial launch torpedo, it is used on some early Motor Torpedo Boats (MTBs), such as the [[MTB-1 1 series]].
  
 
=== Vehicles equipped with this weapon ===
 
=== Vehicles equipped with this weapon ===
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== General info ==
 
== General info ==
''Tell us about the tactical and technical characteristics of the bomb.''
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<!--''Tell us about the tactical and technical characteristics of the bomb.''-->
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The Mark XII is a relatively early torpedo. Deigned for aerial use it has a lower weight and explosive mass than some other torpedoes, however is relatively fast in the water.
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The Naval version of the torpedo has an optional "Torpedo Mode" modification which reduces the range from 3.2 km to 1.37 km, but bumps up the speed by 5 kph, bringing it to 74 kph.
  
 
=== Effective damage ===
 
=== Effective damage ===
''Describe the type of damage produced by this type of bomb (high explosive, splash damage, etc)''
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<!--''Describe the type of damage produced by this type of bomb (high explosive, splash damage, etc)''-->
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Like other torpedoes, when launched from a ship, the Mark XII can kill just about anything smaller than a destroyer with a single hit (or even a near miss). It is possible for some destroyers to survive a hit from a ship launched Mark XII torpedo, and cruisers can almost always take multiple hits from a Mark XII without being destroyed (the torpedo will still tart major fires and hull breaches, but won't instantly hull break the ship).
  
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Air launched Mark XIIs seem to be more powerful and can often kill cruisers (of the player controlled variety) in a single hit.
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<!--TODO: Add description of destructive power against Air RB ground targets-->
 
=== Comparison with analogues ===
 
=== Comparison with analogues ===
''Give a comparative description of bombs that have firepower equal to these type of weapons.''
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<!--''Give a comparative description of bombs that have firepower equal to these type of weapons.''-->
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The closest comparison to the Mark XII (with regards to naval battles) is the German [[LT 1A/1]] (also a 45 cm torpedo found at reserve tier). By comparison the Mark XII is much faster, however the German torpedo has a larger warhead. The Japanese [[Type 2]] (a 45 cm torpedo found on the Japanese reserve ship) is an all round better torpedo being both faster and having a larger warhead.
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Compared to the larger American [[Mk.8-3 C/D]] 53 cm torpedo (found at reserve tier), and German [[G7a]] the Mark XII has much better speed but a smaller warhead.
  
 
== Usage in battles ==
 
== Usage in battles ==
''Describe situations when you would utilize this bomb in game (vehicle, pillbox, base, etc)''
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<!--''Describe situations when you would utilize this bomb in game (vehicle, pillbox, base, etc)''-->
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The Mark VII is relatively fast compared to other low tier torpedoes in naval battles and has a compatible range, allowing you to hit further away targets easier.
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When dropped from aircraft the characteristics of the Mark XII are not ideal. You are required to drop below 105 m and decrease your speed to below 281 kph.
  
 
=== 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.''
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<!--''Summarize 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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* Good speed
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* OK range
  
 
'''Cons:'''
 
'''Cons:'''
*
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* Poor airdrop characteristics
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* Below average explosive mass
  
 
== 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 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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The Mark XII was designed in 1935 (andf entered service in 1937) as an aerial torpedo for use by the Fleet Air Arm and RAF Coastal Command. It was a development of the 18-inch Mark XI, which had a larger 211 kg warhead (compared to 176 kg on the Mark XII), but a shorter 2,300 m range and lower speed of 35 knots (65 kph). The Mark XII reduced the warhead size but increased the speed and range to 69 kph at 3,000 m range or 74 kph at 1,400 m range.
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The torpedo was 4.95 m long, 450 cm wide and weighed 702 kg. It was powered by a 140 hp burner-cycle engine.
  
 
== Media ==
 
== Media ==
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== External links ==
 
== External links ==
''Paste links to sources and external resources, such as:''
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<!--''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;''
 
* ''encyclopedia page on the weapon;''
* ''other literature.''
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* ''other literature.''-->
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* [https://en.wikipedia.org/wiki/British_18-inch_torpedo Wikipedia - British 18-inch torpedo]
  
 
{{Torpedoes}}
 
{{Torpedoes}}
  
 
[[Category:Suspended armaments]]
 
[[Category:Suspended armaments]]

Revision as of 16:04, 9 August 2019

18-inch Mk.XII
Torpedo Mark XII.jpg
Information
Aerial / Ship-launched TorpedoType
Britain Britain flag.pngCounty of Origin
General Characteristics
45 cmDiameter
702 kgMass
TNTExplosive Type
176 kgExplosive Mass
69 kphMax Speed
3.2 kmMax Range
50 mArming Distance
Arial Specific Characteristics
0 - 281 kphDrop Speed Range
0 - 105 mDrop Altitude Range
Naval Specific Characteristics
74 kphMax Speed (mode change)
1.37 kmMax Range (mode change)

Description

The 18-inch Mark XII' or simply Mark XII is a British torpedo. Although designed for use as a aerial launch torpedo, it is used on some early Motor Torpedo Boats (MTBs), such as the MTB-1 1 series.

Vehicles equipped with this weapon

Vehicles equipped with this weapon
Twin-engine fighters  Beaufighter Mk VIc · Beaufighter Mk X · Beaufighter Mk 21
Bombers  Beaufort Mk VIII · Hampden TB Mk I · ▂Hampden TB Mk I UTK-1 · Swordfish Mk I
  Wellington Mk Ic · Wellington Mk Ic /Late · Wellington Mk III · Wellington Mk X
Ships  MTB-1 1 series · MTB-1 2 series

General info

The Mark XII is a relatively early torpedo. Deigned for aerial use it has a lower weight and explosive mass than some other torpedoes, however is relatively fast in the water.

The Naval version of the torpedo has an optional "Torpedo Mode" modification which reduces the range from 3.2 km to 1.37 km, but bumps up the speed by 5 kph, bringing it to 74 kph.

Effective damage

Like other torpedoes, when launched from a ship, the Mark XII can kill just about anything smaller than a destroyer with a single hit (or even a near miss). It is possible for some destroyers to survive a hit from a ship launched Mark XII torpedo, and cruisers can almost always take multiple hits from a Mark XII without being destroyed (the torpedo will still tart major fires and hull breaches, but won't instantly hull break the ship).

Air launched Mark XIIs seem to be more powerful and can often kill cruisers (of the player controlled variety) in a single hit.

Comparison with analogues

The closest comparison to the Mark XII (with regards to naval battles) is the German LT 1A/1 (also a 45 cm torpedo found at reserve tier). By comparison the Mark XII is much faster, however the German torpedo has a larger warhead. The Japanese Type 2 (a 45 cm torpedo found on the Japanese reserve ship) is an all round better torpedo being both faster and having a larger warhead.

Compared to the larger American Mk.8-3 C/D 53 cm torpedo (found at reserve tier), and German G7a the Mark XII has much better speed but a smaller warhead.

Usage in battles

The Mark VII is relatively fast compared to other low tier torpedoes in naval battles and has a compatible range, allowing you to hit further away targets easier.

When dropped from aircraft the characteristics of the Mark XII are not ideal. You are required to drop below 105 m and decrease your speed to below 281 kph.

Pros and cons

Pros:

  • Good speed
  • OK range

Cons:

  • Poor airdrop characteristics
  • Below average explosive mass

History

The Mark XII was designed in 1935 (andf entered service in 1937) as an aerial torpedo for use by the Fleet Air Arm and RAF Coastal Command. It was a development of the 18-inch Mark XI, which had a larger 211 kg warhead (compared to 176 kg on the Mark XII), but a shorter 2,300 m range and lower speed of 35 knots (65 kph). The Mark XII reduced the warhead size but increased the speed and range to 69 kph at 3,000 m range or 74 kph at 1,400 m range.

The torpedo was 4.95 m long, 450 cm wide and weighed 702 kg. It was powered by a 140 hp burner-cycle engine.

Media

An excellent addition to the article would be a video guide, as well as 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 weapon;
  • references to approximate analogues by other nations and research trees.

External links


Torpedoes
USA 
46 cm  Mk.7
53 cm  Mk.8 · Mk.8-3 C/D · Mk.15 · Mk.16
57 cm  Mk.13 * · Mk.13/44 *
Germany 
45 cm  F5W * · LT 1A/1
53 cm  G7a · G7E (mod.T5a) · Seal DM2A1
USSR 
40 cm  SET-40
45 cm  45-36AN * · 45-36MAN * · 45-36NU
53 mm  53-38 · 53-39 · 53-56 · SET-65
Britain 
45 cm  Mark XII * · Mark XV
53 cm  Mk.V · Mk.VIII · Mk.IX
Japan 
32 cm  Mark 46
45 cm  Type 2 · Type 44 No.2 · Type 91 Mod.2 * · Type 91 Mod.3 *
53 cm  Type 6
61 cm  Type 8 No.2 · Type 90 · Type 93 Model 1, Mod 2 · Type 93 Model 3
Italy 
45 cm  F200/450 *
  * = Aircraft launched