The Iranian Air Forces finished Monday the third phase of Velayat 3 Air Force drills. The next three-day stage of Velayet 3 drills will start on Tuesday, September 13, reported Mehr News Agency. Different plane equipments, ammunitions and tactics will go under test in four phases during the 10-day exercises started in Northwestern Iran on Sept. 6. An array of fighter jets, fighter bombers, cargo and transportation planes, including F-4, F-5, SU-24 fighter-bombers, Mig-29 and the logistic C-130 planes, will be used in the exercises