CH single 20 mm



Naval Gun

artillery








  Used by


1943US Casablanca class aircraft carrier CV 20
1944UK Colossus class aircraft carrier CV 32
1944US Wind class icebreakers AW 6
1960UK Type 12 Rothesay class frigate FF 2
1961UK Type 81 Tribal class frigate FF 2
1962UK County class guided-missile destroyer DDG 2
1965UK Fearless class landing ship/platform dock L 2
1965UK OL class support ship AO 2
1967UK Endurance (1967) support ship AO 2
1967FR Suffren class guided-missile destroyer DDG 4
1973UK Type 82 Bristol class guided-missile destroyer DDG 2
1974UK Type 21 Amazon class frigate FF 2
1974FR F67 Tourville class destroyer DD 2
1976FR d'Estienne d'Orves class corvette FS 2
1978AR Drummond class corvette FS 2
1978UK Fort I class (1978) support ship AO 2
1979GR Aris class support ship AO 4
1980ES Anaga class coast guards W 1
1980UK Invincible class aircraft carrier v stol CVS 2
1981NO Nordkapp class coast guards W 4
1983PL Reliant class (1983) support ship AO 4
1983UK Type 22 (Batch 2) Boxer class frigate FF 2
1984IE Eithne class corvette FS 2
1987ZA Drakensberg class support ship AO 4
1987UK Argus class helicopter carrier H 2
1988FR F70 AA class guided-missile destroyer DDG 2
1991DK Thetis class frigate FF 1
1991NL Karel Doorman class frigate FF 1
1992UK Fort II class (1992) support ship AO 2
1992FR Floreal class frigate FF 2
1993DE 404 Elbe class support ship AO 2
1994DE F 123 Brandenburg class frigate FF 2
1996FR La Fayette class frigate FF 2
1998NL Rotterdam class landing ship/platform dock L 4
1998UK Ocean class assault carrier LH 4
2003UK Albion class landing ship/platform dock L 2
2003UK Echo class support ship AO 2
2008FR Horizon class guided-missile destroyer DDG 2
2010ES Buque de Proyeccion Estrategica assault carrier LH 4
2012FR Gowind class corvette FS 1



  Refits


1982-may-31 UK RFA Reliant A131 Support Ship Reliant class (1983) taken up from trade as mv Astronomer and entered rapid refit to provide helicopter support facilities, until 7 Jun 1982.
1982-jun UK HMS Hecate A137 Support Ship Hecla class Repaint o/a Pussers Grey and fitted with 2x 20mm guns, in preparation for South Atlantic deployment



  In Service


US US Navy
UK Royal Navy
NL Royal Netherlands Navy
BR Brazilian Navy
CA Canadian Armed Forces
AU Royal Australian Navy
US US Coast Guard
FR French Navy
AR Argentine Navy
NZ Royal New Zealand Navy
CL Chilean Navy
PK Pakistan Navy
UK Royal Fleet Auxiliary
EG Egyptian Navy
GR Hellenic Navy
ES Spanish Navy
NO Norwegian Coast Guard
IE Irish Naval Service
ZA South African Navy
BE Belgian Navy
PT Portuguese Navy
DK Royal Danish Navy
MA Royal Moroccan Navy
DE German Navy








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