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A German Army Marder fires its Rh202 20 mm cannon on a training exercise.

The Rh202 is an autocannon with a caliber of 20 mm designed and produced by Rheinmetall.

The cannon is used on military vehicles of German origin, like the Marder infantry fighting vehicle, the Spähpanzer Luchs and some variants of the Wiesel AWC. It is also used in the Argentinian VCTP, an IFV based on the TAM chassis. German naval ships also employed Rh202 mounts (usually two on frigates and destroyers, four on larger replenishment ships), but they have been or are currently replaced with the new Mauser (now a subsidiary of Rheinmetall) MLG 27 remote controlled guns of 27 mm calibre.

20 mm twin anti-aircraft cannon

Flugabwehrkanone 20 mm Zwilling
20 mm anti-aircraft gun of the Bundeswehr.JPEG
20 mm twin gun 1095 of the German Luftwaffe
Type Autocannon
Place of origin  West Germany
Production history
Designer Rheinmetall
Designed 1960s
Manufacturer Rheinmetall
Weight 1,640 kg (combat ready)[1]

2,050 kg (travelling)

Crew 3 to 4

Shell 20 × 139 mm
Caliber 20 mm[1]
Elevation -5° to +83.5°[1]
Traverse 360°[1]
Rate of fire 880 to 1,030 rpm per gun[1]
Muzzle velocity 1,044 m/s with HEI

1,100 m/s with AP

Effective range 1,600 m against high flying aircraft[1]

2,500 m against ground targets[1]

An Argentine Rheinmetall 20 mm twin anti-aircraft cannon in the Imperial War Museum.

The same gun, but with an adult male nearby for a reference of scale. Markings of "Fuerza Aérea Argentina" (English: Argentine Air Force) can clearly be seen on the side, in the background is a British Thunderbird missile.

Rheinmetall Zwillingsflak twin-gun anti-aircraft system began development in 1968 to meet the requirements of the low-level air defence units of the German Air Force, i.e. "to engage low and very low approaching enemy aircraft with all appropriate means in time to prevent them from firing their weapons or delivering their ordnance, or at least to prevent them from carrying out an accurate attack on an air force installation."

The Budget Committee of the Bundestag approved the Zwillingsflak system in December 1969, and serial production began in 1972; the first production systems reached units of the Bundeswehr on October 12 of that year. Rheinmetall delivered the last of these in 1976. It was also used by the Argentine Air Force, including during the Falklands War. Since 1981, it was used by the Portuguese Army and Portuguese Air Force.


  •  Argentina - 15 x Rh 202 FAA service, captured in the Falklands Conflict.
  •  Germany - 1015 ordered in 1969. Used between 1972 and 1992, now withdrawn from service.[1]
  •  Greece
  •  Portugal
  •  Turkey
  •  Indonesia
  •  Pakistan[citation needed]


  • Type: single-barrel automatic cannon
  • Caliber: 20 mm x 139 (0.79 in)
  • Operation: Gas operated
  • Length: 2612 mm (8 ft 7 in)
  • Barrel length: 2002 mm
  • Rifling angle: 6°
  • Weight (complete): 75 kg (165 lb) single feed; 83 kg (183 lb) dual feed
  • Rate of fire: 880-1,000 rpm
  • Effective range: 2000 m
  • Max. range: 7000 m
  • Muzzle velocity: 1,050 to 1,150 m/s (3,440 to 3,770 ft/s)
  • Recoil force: 550–750 kg
  • Projectile weight: 134 g (0.3 lb) full calibre; 108 g APDS

External links

See also


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