Tasnim - Iran has unveiled and put into operation a domestically-manufactured training jet, which is among the worlds best in terms of takeoff and landing capabilities. The advanced jet, dubbed Yasin, was put on display on Thursday in the presence of Defense Minister Brigadier General Amir Hatami, Commander of the Islamic Republic of Iran Air Force (IRIAF) Brigadier GeneralAziz Nasirzadeh and Vice President for Science and Technology Sorena Sattari.