| 21. | Her catapult and quadruple . 50-calibre machine guns were removed and six more single 20 mm Oerlikon guns were added.
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| 22. | All Oerlikon guns imported from Switzerland in 1940 were mounted on various gun carriages to serve as light AA-guns on land.
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| 23. | In May 1944, the two Ack Ack [ Anti-Aircraft ] platoons were becoming familiar with new 20 mm Oerlikon Guns.
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| 24. | By 1943 " Ramillies " was fitted with a 20 mm Oerlikon guns that replaced the quadruple . 50-caliber mounts.
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| 25. | The Oerlikon gun remained the primary anti-aircraft weapon of the United States Navy until the introduction of the 40 mm Bofors in 1943.
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| 26. | In August September 1924, the 3-inch guns were replaced by a pair of 20 mm Oerlikon guns were also added in 1941.
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| 27. | The formation of the RAF Regiment in February 1942 ( in response to the Army's failure to defend airfields on Oerlikon guns ).
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| 28. | The Oerlikon gun was installed aboard United States Navy ships from 1942, replacing the M2 Browning machine gun, which lacked range and firepower.
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| 29. | Her armament consisted of a 4-inch or 4.7-inch gun, a 12-pounder gun and four Oerlikon guns.
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| 30. | After the Argentine capitulation, the group's 35 mm Oerlikon guns, abandoned and disabled by their operators, were captured by British forces.
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