Oerlikon 20mm Mk.7 cannon

1980

Oerlikon Contraves a Swiss anti aircraft artillery company established in 1906.
The first Oerlikon 20mm cannon is built since 1914.

Used by

Year	Type	Class	Qty
1969	Support Ship	Rover class	2
1972	Frigate	Nilgiri class	2
1980	Aircraft Carrier V STOL	Invincible class	2
1987	Landing Ship/Platform Dock	Normed class	2
1990	Support Ship	Wu Yi class	2
1995	Support Ship	Amsterdam class
1995	Support Ship	Patiño class	2
1998	Landing Ship/Platform Dock	Galicia Class	4