View source for Rh202 (20 mm)

[[File:Weapon Rh202 (20 mm).png|thumb|right|x250px|The Rh202 (20 mm) over the Wiesel 1A4 hull.]]

== Description ==
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The '''20 mm Rh202''' is a German anti-tank, anti-aircraft and naval autocannon used in game by the US, Germany, Japan and Great Britain.

=== Vehicles equipped with this weapon ===
<!-- ''List out vehicles that are equipped with the weapon.'' -->

;Ground vehicles

* {{Specs-Link|germ_kpz_70}}
* {{Specs-Link|germ_leopard_2k}}
* {{Specs-Link|germ_marder_1a1}}
* {{Specs-Link|germ_marder_1a3}}
* {{Specs-Link|us_mbt_70}}
* {{Specs-Link|jp_sub_i_ii_20mm}}
* {{Specs-Link|jp_type_87_rcv_prot}}
* {{Specs-Link|germ_wiesel_1_mk20}}

;Naval vessels

* {{Specs-Link|uk_corvette_orla}}

== General info ==
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In use during the Cold War era, the 20 mm Rh202 autocannon has a high fire rate of 800 rounds/minute and a variety of shells for different uses. Because of its high rate of fire, the autocannon overheats quickly during sustained fire.

=== 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).'' -->

;Ground vehicles

* '''Default:''' {{Annotation|HVAP-T|High-velocity armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}
* '''Default (pintle mount):''' {{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}
* '''DM51A1:''' {{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}
* '''DM43:''' {{Annotation|HVAP-T|High-velocity armour-piercing tracer}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}
* '''DM63:''' {{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|APDS|Armour-piercing discarding sabot}}{{-}}{{Annotation|HEFI-T|High-explosive fragmentation incendiary tracer}}

{{:{{PAGENAME}}/Ammunition|HVAP-T, HEFI-T, APDS}}

;Naval vessels

* '''Universal:''' {{Annotation|HEFI-T*|High-explosive fragmentation incendiary tracer (self-destroying)}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}
* '''20 mm HEIT belts:''' {{Annotation|HEFI-T*|High-explosive fragmentation incendiary tracer (self-destroying)}}{{-}}{{Annotation|HEFI-T*|High-explosive fragmentation incendiary tracer (self-destroying)}}{{-}}{{Annotation|HEFI-T*|High-explosive fragmentation incendiary tracer (self-destroying)}}{{-}}{{Annotation|HEFI-T*|High-explosive fragmentation incendiary tracer (self-destroying)}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}
* '''API-T:''' {{Annotation|HVAP-T|High-velocity armour-piercing tracer}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}{{-}}{{Annotation|HVAP-T|High-velocity armour-piercing tracer}}{{-}}{{Annotation|HEFI-T*|High-explosive fragmentation incendiary tracer (self-destroying)}}
* '''20 mm APDS belts:''' {{Annotation|APDS|Armour-piercing discarding sabot}}

{{:{{PAGENAME}}/Ammunition|HEFI-T*, HVAP-T, APDS}}

=== Comparison with analogues ===
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* The [[Oerlikon KAD (20 mm)|20 mm Oerlikon KAD]] has a higher fire rate but slightly less penetration.
* The [[M168 (20 mm)|20 mm M168]] has a far superior fire rate due to its rotary barrel design but slightly less penetration.
* The [[M139 (20 mm)|20 mm M139]] has almost double the firerate of the Rh202, but still keeps almost identically same penetration, with only a 1mm difference in penetration.

== 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.'' -->
Because of the fast rate of fire and the HEFI-T* shells found in most ammo belts, it is an excellent anti-air weapon, even against jets. It is also capable of disabling tracks in a very short amount of time.

=== Pros and cons ===
'''Pros:'''

* Fast-firing autocannon
* Able to fire APDS (for a few vehicles)
* Majority of ammo belts include HEFI-T* allowing anti-air capabilities
* Great at disabling tracks

'''Cons:'''

* Low penetration even for APDS
* Overheats easily

== History ==
<!-- ''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>.'' -->
The Rheinmetall Rh202 was developed in the 1960s as a lightweight but fast-firing autocannon. It is a very successful design that has seen use in armies and navies around the world. It was first created for the [[Marder A1-]] Infantry Fighting Vehicle as the Germans wanted a more reliable autocannon than the [[Oerlikon KAD (20 mm)|Hispano-Suzia HS.820]] used on their Schützenpanzer Lang HS.30 Armoured Personnel Carriers. The design was used in the Marder in a two-man turret, as well as on the Spähpanzer Luchs amphibious reconnaissance vehicle and on the [[Wiesel 1A4]], a German air-transportable tankette. The Rh202 was also mounted on the prototype joint United States/West German [[MBT-70]] prototype as an anti-aircraft weapon to replace the AA machine guns on main battle tanks. The Argentinians used both a twin-wheeled carriage variant of the Rh202 during the Falklands War in 1982, and on the VCTP, an IFV based on their [[TAM (Family)|TAM main battle tanks]] which, recursively, are Marder IFV variants. An anti-aircraft twin mount was developed for the Luftwaffe (German Air Force) in 1968 and continues to see service with the Portuguese Navy and Air Force. The Rh202 was also used on NATO cruisers and frigates, particularly in West Germany, though it is getting phased for the newer 27 mm Mauser MLG 27.

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

== See also ==
Autocannons of similar design and caliber:

* [[MK20-1 (20 mm)|MK20-1]]
* [[GAI C01 (20 mm)|GAI C01]]
* [[Oerlikon KAD (20 mm)|Oerlikon KAD]]
* [[GIAT M693/mod F2 (20 mm)|GIAT M693/mod F2]]

== External links ==
''Paste links to sources and external resources, such as:''

* ''topic on the official game forum;''
* ''other literature.''

{{USA tank cannons}}
{{Germany tank cannons}}
{{Japan tank cannons}}
{{Britain naval cannons}}
{{Germany anti-aircraft guns}}
{{Japan anti-aircraft guns}}

[[Category:Tank cannons]]
[[Category:Anti-aircraft guns]]
[[Category:Naval cannons]]