The MiG-21 was the original “Lightweight Fighter.” Flown by over 50 nations, it continues in use with 19 countries. Powered by a Tumansky turbojet of 12,650 pounds thrust with top speed over Mach 2.0, it is simple and robust, with excellent performance. At maximum gross weight of 15,650 pounds, it has a thrust to weight ratio of over 0.80 for exceptional acceleration and climb. It employed a lighter wing loading than other fighters of its day and was therefore able to out turn virtually all of its competitors.