-----------Versions of the MiG-21-------------
First Generation
Daylight interceptor without radar, armed with guns (one or two 30mm NR-30 respectively), guided or unguided missiles on two wing pylons.
* MiG-21F (Изделие = product 65)
* MiG-21F (72)
* MiG-21F-13 (74)
* MiG-21F-13 (S-106, built under licence in Czechoslovakia)
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Second Generation
Radar equipped all-weather interceptor, armed with missiles on two wing pylons only, some versions with external GP-9 gun pod (one 23mm two-barrel gun GSh-23).
* MiG-21PF (76)
* MiG-21FL (77)
* MiG-21FL (77, built under licence in India)
* MiG-21PFS (94)
* MiG-21PFM (94A)
* MiG-21PFM (94N)
Third Generation
All-weather interceptor and reconnaissance aircraft with gun and missile (on four wing pylons) armament (one 23mm gun GSh-23, MiG-21S with GP-9 gun pod, MiG-21R with recce pod instead of the gun).
* MiG-21R (94R, 03)
* MiG-21S (95)
* MiG-21SM (15)
* MiG-21M (88, built under licence in India)
* MiG-21M (96)
* MiG-21MF (96A)
* MiG-21MT (96B)
* MiG-21MF (96F)
* MiG-21MF-75 (63)
* MiG-21SMT (50)
* MiG-21ST (50bis)