1,600 m against high flying aircraft[1]
2,500 m against ground targets[1]
The Rheinmetall Mk 20 Rh-202 (short for Maschinenkanone 20 mm Rheinmetall) is a 20 mm caliberautocannon designed and produced by Rheinmetall. It fires the 20×139mm ammunition originally developed for the Hispano-Suiza HS.820.
German naval ships also employed Rh 202 mounts, usually two on frigates and destroyers, four on larger replenishment ships. They have been or are currently being replaced with the new Mauser, now a subsidiary of Rheinmetall, MLG 27 remote-controlled guns of 27 mm calibre.
A version modified to fire the U.S. M50 series of 20×102mm ammunition loaded into the M14 link belt has been offered to no avail for the U.S. Government by Maremont Corporation, of Saco, Maine, licensed by Rheinmetall under marketing arrangement.[2]
1,600 m against high flying aircraft[1]
2,500 m against ground targets[1]
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. Serial production began in 1972. The first production systems reached units of the Bundeswehr in October 1972. Rheinmetall delivered the last of these in 1976.
Operation: Gas-unlocked sliding breech block, blowback, recoiling base
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
Operators
Argentina – A total of 15 Rh 202 used by the Argentine Air Force were captured in the Falklands Conflict by the British. 9 at Port Stanley Airport and 6 at Goose Green airfield
Germany – 1,015 ordered in 1969. Used between 1972 and 1992. Twin model now withdrawn from service, but the single barrel version still is used, usually vehicle-mounted[1]This gun is used with the Marder.
