First demonstrated to the public during the Domodedovo airshow in 1967, the MiG-23 was a major advance in fighter design over the preceding MiG-21.
The aircraft uses variable-sweep wings which can be set at 16, 45, or 72 degrees of sweep, and variable inlets are used for improved engine efficiency.
About 3,000 MiG-23s were built before production ended in the late 1980s, and the type is said to be easy to fly, popular with pilots, and very reliable.