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Weapons System

Oerlikon 20 mm cannon

Artillery And Mortars

The Oerlikon 20 mm cannon is a series of autocannons based on an original German Becker Type M2 20 mm cannon design that first appeared early in the First World War. Widely produced by Oerlikon Contraves and by other manufacturers under license, its various models were used by both Allied and Axis forces during the Second World War. Later versions of the cannon remained in service into the twenty-first century. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/

Facts
Classification
Caliber
20mm 1
Service Status
In Service 1
Weapon Class
Autocannon 1
Introduced Year
1940 3
Weapon Class
Weapon Class (category)Sourced to the subject's own account
Howitzer / Artillery 2
Connections

Operated By

Imperial Japanese Navy, Armed Forces and Units
Source Wikipedia: Oerlikon 20 mm cannon

Used In

Nigerian Civil War, Wars
Source Wikipedia: Oerlikon 20 mm cannon
World War II, Wars
Source Wikipedia: Oerlikon 20 mm cannon
In the Other Atlases

Manufactured By

Oerlikon Rheinmetall Air Defence

Also in Business Atlas: the manufacturer of this subject.

Source Wikidata: Oerlikon 20 mm cannon
Sources
1. Wikipedia: Oerlikon 20 mm cannon
  • Article text
    In 1937-1938 Lord Louis Mountbatten, then a captain in the Royal Navy, advocated within the Royal Navy to set up an unprejudiced trial for the Oerlikon 20 mm gun, but was unsuccessful.
  • Lead and body text
    The Oerlikon 20 mm cannon is a series of autocannons based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I.
  • Infobox: service
    1937-present
  • Lead section
    The Oerlikon 20 mm cannon is a series of autocannons based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I.
  • Introduction
    is a series of autocannons based on an original German Becker Type M2 20 mm cannon design
  • Used In: World War II, Infobox: wars
    World War II Nigerian Civil War
  • Used In: Nigerian Civil War, Infobox: wars
    World War II Nigerian Civil War
  • Operated By: Imperial Japanese Navy, Wikipedia article text
    And the Imperial Japanese Navy, after evaluating all three guns, ordered developments of the FF and FFL as the Type 99-1 and Type 99-2.
  • In Group: Autocannons and Chain Guns, Lead sentence
    The Oerlikon 20 mm cannon is a series of autocannons based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I. Widely produced by Oerlikon Contraves and by others, its various models saw service with both Allied and Axis forces during World War II. Versions of the cannon were still in use in 2026.
View the Source
2. Oerlikon 20 mm cannon (Wikidata)
Wikidata
  • Weapon class classified from the entity's own sourced description text.
  • Wikidata Q210670 (P729 service entry): 1940
    Service entry (Wikidata property P729): 1940.
View the Source
3. Wikidata: Oerlikon 20 mm cannon
Wikidata Q210670, class allow-list match (w-wdresolver-0926)View the Source
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