21. Her light anti-aircraft armament was also increased to 52 Oerlikon guns at the same time. 22. Their anti-aircraft armament made them appropriate for escort duties during the Allied invasion of Sicily. 23. Their anti-aircraft armament consisted of a pair of Canon de 37 mm Mod�le 1925 guns. 24. During the war, the ship's light anti-aircraft armament was augmented several times. 25. These took until October 1942 and the opportunity was taken to reinforce her anti-aircraft armament . 26. The primary anti-aircraft armament is one FL-3000N short range missile system with 8 rounds. 27. The Italians modified the design to have guns as main armament and guns as anti-aircraft armament . 28. Their anti-aircraft armament was further increased as a result of lessons learned during the Winter War. 29. By 1944 " Savorgnan de Brazza " s anti-aircraft armament had been further increased. 30. He served four years as a radar specialist in aircraft armament control in the United States Air Force.