20mm Oerlikon Initial History and Specifications. The ordnance for this weapon actually dates back to 1918, when German arms engineer Reinhold Becker came up with a 20x80mm round that fired using ...

The camera of the R/V Petrel captured the 20mm Oerlikon anti-aircraft cannon, seen here, on the starboard stern of the USS Helena. (R/V Petrel) The expedition crew of Microsoft co-founder Paul ...

One of the featured weapons from Iran was the 20mm Oerlikon Cannons which lend themselves especially well to close-range operations where missiles can be ineffective. Iran took an active role in the ...

20mm Oerlikon Initial History and Specifications. The ordnance for this weapon actually dates back to 1918, when German arms engineer Reinhold Becker came up with a 20x80mm round that fired using ...