MiG-21UM - after flight. Izdeliye 69 ("Mongol-B") - two-seat training version of the MiG-21MF. Yugoslavian designation NL-16 ("Nastavni Lovač" - trainer fighter). This plane belongs to 101st Fighter Squadron (101. lovačka avijacijska eskadrilia "Vitezovi" / Knights) of 204th Air Brigade (204. vazduhoplovna brigada). 100 years of Serbian military aviation, international airshow "Batajnica 2012".